SIST EN 1515-4:2021
(Main)Flanges and their joints - Bolting - Part 4: Selection of bolting for equipment subject to the Pressure Equipment Directive 2014/68/EU
Flanges and their joints - Bolting - Part 4: Selection of bolting for equipment subject to the Pressure Equipment Directive 2014/68/EU
This European Standard is applicable to the selection of bolting for equipment subject to the Pressure Equipment Directive 2014/68/EU.
It specifies standards and additional requirements for dimensions, materials and technical conditions of delivery for bolting.
The bolting selection covered by this European Standard is regarded to be used for combination with flanges according to the series EN 1092 (PN designated flanges) and the series EN 1759 (Class designated flanges).
The selection is based on commonly used materials, bolts and nuts. It covers temperature ranges of the general service of standard flanges (based on PN or Class).
NOTE 1 The bolting selection given may be used in combination with non-standard flanges too provided that the range of application of the equipment for which the bolting is intended to be used is covered. It is the purchaser's option to decide on this.
When selecting bolting according to this European Standard it is essential to take into account other parameters such as type of fluids, corrosion hazards and relaxation at elevated temperatures.
The purpose of this European Standard is to provide a selection of most commonly used bolting types and bolting material combinations as well a tool for easy selection of suitable bolting for equipment.
It is not the intention to specify all possible applications but to give guidance on the most commonly applications. According to this, e.g. application limits for material in the creep range are not explicitly covered in this European Standard but some bolting materials listed (see Table 3, footnote h) are suitable to be used in this temperature range. Wherever the starting material standard provides mechanical properties for this temperature range respective reference is made in Table 3.
NOTE 2 Special services and ambient conditions may require the application of coatings. It is the purchaser's option to decide on this. Depending on the coating used, a verification of the temperature ranges
Flansche und ihre Verbindungen - Schrauben und Muttern - Teil 4: Auswahl von Schrauben und Muttern zur Anwendung im Gültigkeitsbereich der Druckgeräterichtlinie 2014/68/EU
Dieses Dokument ist anzuwenden für die Auswahl von Schrauben und Muttern für Flanschverbindungen bei Geräten, die der Druckgeräterichtlinie 2014/68/EU unterliegen.
Es legt Normen und zusätzliche Anforderungen an Maße, Werkstoffeigenschaften und technische Lieferbedingungen für Schrauben und Muttern fest.
ANMERKUNG 1 Unterlegscheiben liegen nicht im Anwendungsbereich dieses Dokuments.
Die Auswahl beruht auf allgemein gebräuchlichen Schrauben und Muttern. Sie umfasst übliche Temperaturbereiche für den allgemeinen Betrieb von Flanschen.
Bei der Auswahl von Schrauben und Muttern nach diesem Dokument ist es unerlässlich, Umgebungsbedingungen und weitere Parameter einschließlich der Art von Flüssigkeiten, Korrosions-gefährdungen, sauren Betriebsbereichen, Sprödbruch bei niedrigen Temperaturen und Relaxation bei erhöhten Temperaturen zu berücksichtigen.
Der Zweck dieses Dokuments ist es, eine Auswahl der gebräuchlichsten Arten und Werkstoffkombinationen von Schrauben und Muttern bereitzustellen.
Es ist nicht beabsichtigt, sämtliche möglichen Anwendungen festzulegen, sondern eine Leitlinie für die gebräuchlichsten Anwendungen bereitzustellen. Beispielsweise werden Anwendungsgrenzen von Werkstoffen im Zeitstandbereich in diesem Dokument nicht explizit behandelt. Wenn in einer Werkstoffnorm mechanische Eigenschaften für den Zeitstandbereich bereitgestellt werden, wird in Tabelle 3 darauf entsprechend verwiesen.
ANMERKUNG 2 Spezielle Betriebsbereiche und Umgebungsbedingungen können das Aufbringen von Beschichtungen erfordern. Die diesbezügliche Entscheidung liegt beim Besteller. In Abhängigkeit von der verwendeten Beschichtung kann eine Überprüfung der in Tabelle 3 und Tabelle 4 angegebenen Temperaturbereiche erforderlich sein.
ANMERKUNG 3 Anhang B enthält Arten und Werkstoffkombinationen von Schrauben und Muttern entsprechend gebräuchlicher nationaler Normen, die nicht in Tabelle 2, Tabelle 3 und Tabelle 4 aufgeführt sind.
Brides et leurs assemblages - Boulonnerie - Partie 4 : Sélection de la boulonnerie pour équipments relevant de la Directive Equipments sous pression 2014/68/EU
Le présent document est applicable à la sélection de la boulonnerie destinée aux assemblages à brides des équipements relevant de la Directive Équipements sous pression 2014/68/UE.
Elle spécifie les normes et les exigences supplémentaires relatives aux dimensions, matériaux et conditions techniques de livraison applicables à la boulonnerie.
NOTE 1 Les rondelles n’entrent pas dans le domaine d’application du présent document.
La sélection s’appuie sur la boulonnerie couramment utilisée. Elle couvre les plages de température d'usage général des brides.
Lors de la sélection de la boulonnerie conformément au présent document, il est essentiel de tenir compte des conditions environnementales et d'autres paramètres tels que le type de fluide, les risques de corrosion, les applications avec gaz acides, la rupture fragile à basse température et la relaxation à température élevée.
L’objectif du présent document est de fournir une sélection des types de boulonnerie et des combinaisons de matériaux de boulonnerie les plus couramment utilisés.
Il n’a pas vocation à spécifier toutes les applications possibles mais plutôt à fournir des lignes directrices sur les applications les plus courantes. Par exemple, les limites d'application pour les matériaux dans le domaine du fluage ne sont pas explicitement traitées dans le présent document. Lorsque la norme de matériau de base fournit des propriétés mécaniques pour le domaine du fluage, la référence est indiquée respectivement dans le Tableau 3.
NOTE 2 Des applications spéciales et des conditions à température ambiante peuvent exiger l’application de revêtements. Cette option est laissée à l’initiative de l’acheteur. En fonction du revêtement utilisé, une vérification des plages de température données dans le Tableau 3 et le Tableau 4 peut s’avérer nécessaire.
NOTE 3 Dans l'Annexe B, sont spécifiés des types de boulons et des combinaisons de matériaux de boulons selon les normes nationales communément utilisées autres que celles énumérées dans le Tableau 2, le Tableau 3 et
le Tableau 4.
Prirobnice in prirobnični spoji - Vijaki in matice - 4. del: Izbira vijakov in matic za opremo, ki je v skladu z Direktivo o tlačni opremi 2014/68/EU
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 1515-4:2021
01-maj-2021
Nadomešča:
SIST EN 1515-4:2010
Prirobnice in prirobnični spoji - Vijaki in matice - 4. del: Izbira vijakov in matic za
opremo, ki je v skladu z Direktivo o tlačni opremi 2014/68/EU
Flanges and their joints - Bolting - Part 4: Selection of bolting for equipment subject to
the Pressure Equipment Directive 2014/68/EU
Flansche und ihre Verbindungen - Schrauben und Muttern - Teil 4: Auswahl von
Schrauben und Muttern zur Anwendung im Gültigkeitsbereich der Druckgeräterichtlinie
2014/68/EU
Brides et leurs assemblages - Boulonnerie - Partie 4 : Sélection de la boulonnerie pour
équipments relevant de la Directive Equipments sous pression 2014/68/EU
Ta slovenski standard je istoveten z: EN 1515-4:2021
ICS:
21.060.10 Sorniki, vijaki, stebelni vijaki Bolts, screws, studs
21.060.20 Matice Nuts
23.040.60 Prirobnice, oglavki in spojni Flanges, couplings and joints
elementi
SIST EN 1515-4:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST EN 1515-4:2021
---------------------- Page: 2 ----------------------
SIST EN 1515-4:2021
EN 1515-4
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2021
EUROPÄISCHE NORM
ICS 21.060.10; 21.060.20; 23.040.60 Supersedes EN 1515-4:2009
English Version
Flanges and their joints - Bolting - Part 4: Selection of
bolting for equipment subject to the Pressure Equipment
Directive 2014/68/EU
Brides et leurs assemblages - Boulonnerie - Partie 4 : Flansche und ihre Verbindungen - Schrauben und
Sélection de la boulonnerie pour équipments relevant Muttern - Teil 4: Auswahl von Schrauben und Muttern
de la Directive Equipments sous pression 2014/68/EU zur Anwendung im Gültigkeitsbereich der
Druckgeräterichtlinie 2014/68/EU
This European Standard was approved by CEN on 1 February 2021.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1515-4:2021 E
worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN 1515-4:2021
EN 1515-4:2021 (E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 5
3.1 Terms and definitions . 5
3.2 Symbols and units . 7
4 Selection of bolting types and materials . 7
4.1 General. 7
4.2 Selection of bolting types . 7
4.3 Selection of bolting material combinations . 8
4.4 Requirements of bolting related to property classes . 11
5 Manufacturing . 11
5.1 General. 11
5.2 Coating . 12
6 Technical conditions of delivery . 12
6.1 General. 12
6.2 Requirements for prevention of brittle fracture at low temperatures . 12
7 Traceability and inspection documents . 14
7.1 Traceability . 14
7.2 Inspection documents . 14
7.3 Alternative to inspection documents . 15
8 Ordering information . 15
Annex A (normative) Studs threaded full length . 16
Annex B (informative) Additional bolting types and materials according to commonly used
national standards . 17
Annex C (informative) Additional requirements for hot dip galvanized carbon steel bolting . 18
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2014/68/EU aimed to be covered . 19
Bibliography . 20
2
---------------------- Page: 4 ----------------------
SIST EN 1515-4:2021
EN 1515-4:2021 (E)
European foreword
This document (EN 1515-4:2021) has been prepared by Technical Committee CEN/TC 74 “Flanges and
their joints”, the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by September 2021, and conflicting national standards
shall be withdrawn at the latest by September 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 1515-4:2009.
EN 1515, Flanges and their joints — Bolting, consists of the following parts:
— Part 1: Selection of bolting;
— Part 2: Classification of bolt materials for steel flanges, PN designated;
— Part 3: Classification of bolt materials for steel flanges, class designated;
— Part 4: Selection of bolting for equipment subject to the Pressure Equipment Directive 2014/68/EU.
Main changes compared to edition EN 1515-4:2009:
— explanation of requirements for starting material in accordance to EN 10269:2013;
— some temperature ranges and assignment of material groups are amended in Table 3;
— option for traceability by means of lot identification marking instead of inspection documents;
— separate requirements have been given to bolting other than those in EN 10269:2013;
— requirements for prevention of brittle fracture have been updated.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this
document.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
3
---------------------- Page: 5 ----------------------
SIST EN 1515-4:2021
EN 1515-4:2021 (E)
1 Scope
This document is applicable to the selection of bolting for flanged joints on equipment subject to the
Pressure Equipment Directive 2014/68/EU.
It specifies standards and additional requirements for dimensions, material properties and technical
conditions of delivery for bolting.
NOTE 1 Washers are not within the scope of this document.
The selection is based on commonly used bolting. It covers common temperature ranges of the general
service of flanges.
When selecting bolting according to this document it is essential to take into account environmental
conditions and other parameters including type of fluids, corrosion hazards, sour service, low
temperature brittle failure and relaxation at elevated temperatures.
The purpose of this document is to provide a selection of most commonly used bolting types and bolting
material combinations.
It is not the intention to specify all possible applications but to give guidance on the most common
applications. For example, application limits for material in the creep range are not explicitly covered in
this document. Where material standard provides mechanical properties for the creep range respective
reference is made in Table 3.
NOTE 2 Special services and ambient conditions may require the application of coatings. It is the purchaser’s
option to decide on this. Depending on the coating used, a verification of the temperature ranges given in Table 3
and Table 4 may be required.
NOTE 3 In Annex B there are bolting types and bolting material combinations according to commonly used
national standards other than those listed in Table 2, Table 3 and Table 4.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 764-5:2014, Pressure equipment - Part 5: Inspection documentation of metallic materials and
compliance with the material specification
EN 1092-1:2018, Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN
designated - Part 1: Steel flanges
EN 1759-1:2004, Flanges and their joint - Circular flanges for pipes, valves, fittings and accessories, Class
designated - Part 1: Steel flanges, NPS 1/2 to 24
EN 10204:2004, Metallic products - Types of inspection documents
EN 10269:2013, Steels and nickel alloys for fasteners with specified elevated and/or low temperature
properties
1
EN 13445-3:2014, Unfired pressure vessels - Part 3: Design
1
As impacted by EN 13445-3:2014/A1:2015, EN 13445-3:2014/A2:2016, EN 13445-3:2014/A3:2017,
EN 13445-3:2014/A4:2018, EN 13445-3:2014/A5:2018, EN 13445-3:2014/A6:2019, EN 13445-3:2014/A7:2019
and EN 13445-3:2014/A8:2019.
4
---------------------- Page: 6 ----------------------
SIST EN 1515-4:2021
EN 1515-4:2021 (E)
2
EN 13480-3:2017, Metallic industrial piping - Part 3: Design and calculation
EN ISO 898-1:2013, Mechanical properties of fasteners made of carbon steel and alloy steel - Part 1: Bolts,
screws and studs with specified property classes - Coarse thread and fine pitch thread (ISO 898-1:2013)
EN ISO 898-2:2012, Mechanical properties of fasteners made of carbon steel and alloy steel - Part 2: Nuts
with specified property classes - Coarse thread and fine pitch thread (ISO 898-2:2012)
EN ISO 3269:2019, Fasteners - Acceptance inspection (ISO 3269:2019)
EN ISO 3506-1:2020, Fasteners - Mechanical properties of corrosion-resistant stainless steel fasteners -
Part 1: Bolts, screws and studs with specified grades and property classes (ISO 3506-1:2020)
EN ISO 3506-2:2020, Fasteners - Mechanical properties of corrosion-resistant stainless steel fasteners -
Part 2: Nuts with specified grades and property classes (ISO 3506-2:2020)
EN ISO 4014:2011, Hexagon head bolts - Product grades A and B (ISO 4014:2011)
EN ISO 4017:2014, Fasteners - Hexagon head screws - Product grades A and B (ISO 4017:2014)
EN ISO 4032:2012, Hexagon regular nuts (style 1) - Product grades A and B (ISO 4032:2012)
EN ISO 4033:2012, Hexagon high nuts (style 2) - Product grades A and B (ISO 4033:2012)
EN ISO 4042:2018, Fasteners - Electroplated coating systems (ISO 4042:2018)
EN ISO 6892-2:2018, Metallic materials - Tensile testing - Part 2: Method of test at elevated temperature
(ISO 6892-2:2018)
EN ISO 16228:2018, Fasteners - Types of inspection documents (ISO 16228:2017)
EN ISO 16426:2002, Fasteners - Quality assurance system (ISO 16426:2002)
ISO 261:1998, ISO general purpose metric screw threads — General plan
ISO 965-2:1998, ISO general purpose metric screw threads — Tolerances — Part 2: Limits of sizes for
general purpose external and internal screw threads — Medium quality
3 Terms and definitions
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1.1
bolting
type of fastener such as a bolt, screw or stud with normal, reduced or waisted shank or nut
2
As impacted by EN 13480-3/A1:2021, EN 13480-3/A2:2020 and EN 13480-3/A3:2020.
5
---------------------- Page: 7 ----------------------
SIST EN 1515-4:2021
EN 1515-4:2021 (E)
3.1.2
purchaser
person or organization that orders products in accordance with this European Standard
Note 1 to entry: Where a purchaser has responsibilities under the requirements of EU Directive listed in
Annex ZA, the use of this European Standard, if its reference is published in the OJEU (Official Journal of European
Union), will provide the presumption of conformity with the essential requirements of the Directive as identified
in Annex ZA.
3.1.3
bolting manufacturer
person or organization that is responsible for the compliance of the bolting with the requirements of
this European Standard and the referenced standards given for bolting and starting materials agreed
with the purchaser
3.1.4
manufacturing lot
quantity of fasteners of a single designation including product grade, property class and sizes,
manufactured from bar, wire, rod or flat product from a single cast, processed through the same or
similar steps at the same time or over a continuous time period through the same heat treatment
and/or coating, if any
Note 1 to entry: Same heat treatment or coating means:
• for a continuous process, the same treatment cycle without any setting modification;
• for a discontinuous process, the same treatment cycle for identical consecutive loads (batches).
Note 2 to entry: The manufacturing lot may be split into several manufacturing batches for processing purposes
and then reassembled into the same manufacturing lot.
3.1.5
manufacturing lot number
unique number assigned by the bolting manufacturer and which allows full traceability from the
finished product back through all previous steps of the manufacturing operations to a given cast
number of the starting material of manufacture
3.1.6
starting material
material from which the bolt or nut is manufactured
3.1.7
creep range
the temperature range at which a material has time dependent mechanical properties
6
---------------------- Page: 8 ----------------------
SIST EN 1515-4:2021
EN 1515-4:2021 (E)
3.2 Symbols and units
The symbols and respective units used in this document are defined in Table 1.
Table 1 — Symbols and units
Symbol Designation Unit
KV Impact rupture energy J
T Material impact test temperature °C
KV
T Minimum metal temperature of the bolting °C
M
4 Selection of bolting types and materials
4.1 General
The selection of bolting types and bolting material combinations for a certain application shall consider
in addition to the requirements covered by this document, the range of application of the equipment for
which the bolting is intended to be used. The selection shall consider all service conditions including
maximum/minimum allowable temperature, required bolt load, tightening method and resultant
stresses, type of fluids, corrosion hazards and if applicable type and material of gasket.
Furthermore, it shall be regarded that flanged joints shall remain tight under the expected operating
conditions. Other properties like residual magnetism and relaxation properties shall be evaluated by
the purchaser.
The minimum yield strength, tensile strength, and creep of the bolting shall be suitable for the required
bolt load determined for the application and tightening method. Where there is a requirement
concerning the strength category for bolting given in EN 1092-1:2018, Annex E, EN 1759-1:2004,
2 1
Annex B, EN 13480-3:2017, Annex D , or EN 13445-3:2014, Clause 11 , then this shall be observed by
the user of this document.
4.2 Selection of bolting types
Selection of bolting types according to Table 2.
Table 2 — Types of bolting
Dimensional standard
Remarks
Bolts/Studs Nuts
EN ISO 4032:2012
EN ISO 4014:2011 Hexagon head bolt
a
EN ISO 4033:2012
EN ISO 4032:2012
EN ISO 4017:2014 Hexagon head bolt, threaded full length
a
EN ISO 4033:2012
EN ISO 4032:2012
Annex A Stud bolt, threaded full length
a
EN ISO 4033:2012
a
The user shall determine whether EN ISO 4033:2012 Nuts are required for the application. For sizes ≥ M39
nuts with m = d are recommended.
7
---------------------- Page: 9 ----------------------
SIST EN 1515-4:2021
EN 1515-4:2021 (E)
4.3 Selection of bolting material combinations
A selection of commonly used bolting material combinations and their suitable application ranges is
shown in Table 3 and Table 4. Combination of bolting materials other than the combinations shown
may reduce the given temperature limits.
All bolting materials shall conform to the requirements of the standard that specifies it and starting
material shall fulfil all the requirements of EN 10269:2013. The heat treatment may be performed on
the starting material or on the finished bolting.
Guidance on conditions to determine the permissible minimum temperature is defined in 6.2.
Table 3 — Selection of bolting materials combinations acc. to EN 10269:2013 with suitable
application ranges
Steel designation name
Suitable
Type of bolting and description of
PN temperature Steel designation number
material groups
Line
range
Class Material standard
No
up to
Bolts, screws, Bolts, screws,
°C Nuts Nuts
studs studs
25CrMo4 C35E
Unalloyed steel
1 All −10 to 400 0,25C-1Cr-Mo 1.7218 1.1181
elev. temp.
EN 10269:2013 EN 10269:2013
42CrMo4 C45E
Unalloyed steel
2 All −10 to 350 0,42C-1Cr-Mo 1.7225 1.1191
elev. temp.
EN 10269:2013 EN 10269:2013
e
25CrMo4 25CrMo4
3 All −60 to 500 0,25C-1Cr-Mo 0,25C-1Cr-Mo 1.7218 1.7218
EN 10269:2013 EN 10269:2013
e
25CrMo4 42CrMo4
4 All −40 to 500 0,25C-1Cr-Mo 0,42C-1Cr-Mo 1.7218 1.7225
EN 10269:2013 EN 10269:2013
42CrMo4 42CrMo4
5 All −40 to 500 0,42C-1Cr-Mo 0,42C-1Cr-Mo 1.7225 1.7225
EN 10269:2013 EN 10269:2013
e
42CrMo5–6 42CrMo4
6 All −10 to 500 0,42C-1,3Cr-0,6Mo 0,42C-1Cr-Mo 1.7233 1.7225
EN 10269:2013 EN 10269:2013
e
40CrMoV4–6 42CrMo4
7 All −10 to 500 0,40C-1Cr-0,6Mo-V 0,42C-1Cr-Mo 1.7711 1.7225
EN 10269:2013 EN 10269:2013
e
21CrMoV5–7 21CrMoV5–7
0,21C-1,3Cr-0,7Mo- 0,21C-1,3Cr-0,7Mo-
c
8 All −10 to 500 1.7709 1.7709
V V
EN 10269:2013 EN 10269:2013
e
20CrMoVTiB4–10 20CrMoVTiB4–10
0,2C-1Cr-1Mo-V-Ti- 0,2C-1Cr-1Mo-V-Ti-
9 All −10 to 500 1.7729 1.7729
B B
EN 10269:2013 EN 10269:2013
8
---------------------- Page: 10 ----------------------
SIST EN 1515-4:2021
EN 1515-4:2021 (E)
Steel designation name
Suitable
Type of bolting and description of
temperature Steel designation number
PN
material groups
Line
range
Material standard
Class
No
up to
Bolts, screws, Bolts, screws,
°C Nuts Nuts
studs studs
e
X6NiCrTiMoVB X6NiCrTiMoVB
25–15–2 25–15–2
25Ni-15Cr-0,2Ti- 25Ni-15Cr-0,2Ti-
b f
10 All −60 to 650
Mo-V-B Mo-V-B
1.4980 1.4980
EN 10269:2013 EN 10269:2013
X22CrMoV12–1 X22CrMoV12–1 QT2
e
QT2
1.4923
b
11 All −10 to 500 12Cr-1Mo-V 12Cr-1Mo-V
1.4923
EN 10269:2013
EN 10269:2013
X7CrNiMoBNb16– X7CrNiMoBNb16–
e
16 16
12 All −10 to 650 16Cr-16Ni-Mo-B-Nb 16Cr-16Ni-Mo-B-Nb
1.4986 1.4986
EN 10269:2013 EN 10269:2013
X5CrNiMo17–12–2 X5CrNiMo17–12–2
c
+AT
PN 40
13 −196 to 550 17Cr-12Ni-2Mo 17Cr-12Ni-2Mo
Cl. 300
1.4401 1.4401
EN 10269:2013 EN 10269:2013
X5CrNiMo17–12–2 X5CrNiMo17–12–2
+AT+C700
PN 100 17Cr-12Ni-2Mo
a
14 −196 to 200 17Cr-12Ni-2Mo
Cl. 600 +AT+C
1.4401 1.4401
EN 10269:2013 EN 10269:2013
X5CrNi18–10 X5CrNi18–10
c
+AT
PN 40
15 −196 to 550 18Cr-10Ni 18Cr-10Ni
Cl. 300
1.4301 1.4301
EN 10269:2013 EN 10269:2013
X5CrNi18–10 X5CrNi18–10
+AT+C700
PN 100 18Cr-10Ni
d a
16 −60 to 200 18Cr-10Ni
Cl. 600 AT+C
1.4301 1.4301
EN 10269:2013 EN 10269:2013
a
Allowable stresses for elevated temperatures may be taken from the material in AT condition, as no stresses exist for the
cold worked condition.
b
Commonly used for PN 160 up to PN 400.
c
Is limited to be used for max. PN 40/Cl. 300 (low strength bolting).
d
−200 °C for studs or for bolts manufactured by machining from annealed rods or bars (AT) without work hardening
except thread forming, if any.
e
May be used in the creep range. For maximum suitable temperature see EN 10269:2013.
f
When intended to be used down to −273 °C, for additional requirements see Table 7.
9
---------------------- Page: 11 ----------------------
SIST EN 1515-4:2021
EN 1515-4:2021 (E)
Table 4 — Selection of bolting materials combinations acc. to property classes, with suitable
application ranges
Suitable Type of bolting
Property class
temperature and description of
PN
Material standard
range material groups
Line
Class
No
Bolts,
up to
°C screws, Nuts Bolts, screws, studs Nuts
studs
b
5.6 5
a
PN 40 Unalloyed Carbon
f
1 −10 to 300 — —
Cl. 300 Steel Steel
EN ISO 898-1:2013 EN ISO 898-2:2012
8.8 8
a
PN 40 Alloyed Carbon
f
2 −10 to 300 — —
Cl. 300 Steel Steel
EN ISO 898-1:2013 EN ISO 898-2:2012
e
A2–50 A2–50, A2–70
c
PN 40
18Cr-
3 −200 to 400 18Cr-9Ni — —
9Ni
Cl. 300
EN ISO 3506-1:2020 EN ISO 3506-2:2020
A2–70 A2–70
PN 100
18Cr-
4 −200 to 400 18Cr-9Ni — —
9Ni
Cl. 600
EN ISO 3506-1:2020 EN ISO 3506-2:2020
A3–50 A2–50, A2–70
c
PN 40
18Cr-
g
5 −200 to 400 18Cr-9Ni — —
9Ni
Cl. 300
EN ISO 3506-1:2020 EN ISO 3506-2:2020
A3–70 A2–70
PN 100
18Cr-
g
6 −200 to 400 18Cr-9Ni — —
9Ni
Cl. 300
EN ISO 3506-1:2020 EN ISO 3506-2:2020
e
A4–50 A4–50 A4–70
18Cr-
c
PN 40
18Cr-9Ni-
d
7 −60 to 400 9Ni- — —
Mo
Cl. 300
Mo
EN ISO 3506-1:2020 EN ISO 3506-2:2020
A4–70 A4–70
18Cr-
PN 100
18Cr-9Ni-
d
8 −60 to 400 9Ni- — —
Mo
Cl. 600
Mo
EN ISO 3506-1:2020 EN ISO 3506-2:2020
A5–50 A4–50, A4–70
18Cr-
c
PN 40
18Cr-9Ni-
d
9 −60 to 400 9Ni- — —
g
Mo
Cl. 300
Mo
EN ISO 3506-1:2020 EN ISO 3506-2:2020
A5–70 A4–70
18Cr-
PN 100
18Cr-9Ni-
d
10 −60 to 400 9Ni- — —
g
Mo
Cl. 600
Mo
EN ISO 3506-1:2020 EN ISO 3506-2:2020
a
Up to PN 63 for temperature up to 120 °C.
b
The use of free-cutting steel is not permitted.
c
Is limited to be used for max. PN 40/Cl. 300 (low strength bolting).
d
−200 °C for studs or for bolts manufactured by machining from annealed rods or bars (AT) without work hardening except
thread forming, if any.
e
Generally cold forged nuts will be used in strength class 70.
10
---------------------- Page: 12 ----------------------
SIST EN 1515-4:2021
EN 1515-4:2021 (E)
Suitable Type of bolting
Property class
temperature and description of
PN
Material standard
range material groups
Line
Class
No
Bolts,
up to
°C screws, Nuts Bolts, screws, studs Nuts
studs
f
EN ISO 898-1:2013 and EN ISO 898-2:2012 are not giving any values of mechanical properties in elevated temperatures.
The use of these bolts as such is limited to max +50 °C. For use in temperatures above +50 °C, 4.4 applies.
g
Stabilized by other elements: 5C ≤ Ti ≤ 0,80 and/or 10C ≤ Nb ≤ 1,00.
4.4 Requirements of bolting related to property classes
Bolts of property classes 5.6 and 8.8 shall be validated by regular tensile testing according to
EN ISO 6892-2:2018 at a temperature of 300 °C on a machined test piece derived from full-size bolts,
screws and studs. The minimum strength properties according to Table 5 apply.
For bolts of steel grade A2 to A5 the mechanical properties shall be guaranteed. The minimum values of
strength properties for design and service purposes shall be ensured by appropriate method.
Nominal design stresses for design shall be determined acc. to applicable product standard and applied
2 1
calculation method (e.g. EN 13480-3:2017 , EN 13445-3:2014 , etc.).
Table 5 — Minimum strength properties of bolting to be secured
Tensile Minimum proof strength Rp0,2/t (MPa)
strength
at a temperature (°C) of:
Property class Size limitation
R
m
20 100 200 300 400
(MPa)
5.6 ≤ M 39 500 300 270 229 192 —
8.8 ≤ M 39 800 640 590 540 480 —
A2–50 to A5– ≤ M 39 500 210 175 155 135 125
50
A2–70 to A5– ≤ M 24 700 450 380 360 335 315
70
The above strength values for 5.6 and 8.8 bolts have been derived from EN ISO 898-1:2013 and its earlier
3
versions. The values for austenitic bolts have been derived from EN 13445-2:2014 by multiplying the
allowable stresses by safety factor 1,5.
5 Manufacturing
5.1 General
Final heat treatment is not necessary for bolting which are machined from adequate pre-treated bars.
The process of pre-treatment of bars is at the responsibility of the bolting manufacturer.
Generally cold forming (except rolling of external threads) requires a subsequent heat treatment.
However cold working is necessary and therefore permitted for austenitic stainless steel bolting in
accordance to property class 70 and for nuts in accordance to property classes 5 and 8, in order to
achieve hardness specifications and therefore post heat treatment is not allowed. Nuts should be
obtained, preferably, by forging. The internal thread of the nut will usually be machined.
3
As impacted by EN 13445-2:2014/A3:2018.
11
---------------------- Page: 13 ----------------------
SIST EN 1515-4:2021
EN 1515-4:2021 (E)
5.2 Coating
The type of coating shall be specified in the purchase order (see Clause 8). The coating process is under
the responsibility of the bolting manufacturer and shall take into consideration confirmation of
achievement of the mechanical and dimensional properties of bolting, as appropriate.
The coating to be used for the bolting shall be appropriate for the foreseen service conditions.
NOTE 1 In general, bolting will be delivered:
• with a primary manufacture finish (slightly greased); or
• with an electrolytic coating in compliance with EN ISO 4042:2018; or
• hot galvanized in compliance with EN ISO 10684:2004;
• passivated according to EN ISO 16048:2003 (applicable for corrosion-resistant stainless-steel bolting
only).
• Fasteners with different types of coating shall not be mixed within one flanged connection.
• The upper and lower temperature limits of coatings, including the influence on fastener material must
be considered when specifying or using the coating.
NOTE 2 For additional requi
...
SLOVENSKI STANDARD
oSIST prEN 1515-4:2019
01-november-2019
Prirobnice in prirobnični spoji - Vijaki in matice - 4. del: Izbira vijakov in matic za
opremo, ki je v skladu z Direktivo o tlačni opremi 2014/68/EU
Flanges and their joints - Bolting - Part 4: Selection of bolting for equipment subject to
the Pressure Equipment Directive 2014/68/EU
Flansche und ihre Verbindungen - Schrauben und Muttern - Teil 4: Auswahl von
Schrauben und Muttern zur Anwendung im Gültigkeitsbereich der Druckgeräterichtlinie
2014/68/EU
Brides et leurs assemblages - Boulonnerie - Partie 4 : Sélection de la boulonnerie pour
équipments relevant de la Directive Equipments sous pression 2014/68/EU
Ta slovenski standard je istoveten z: prEN 1515-4
ICS:
21.060.10 Sorniki, vijaki, stebelni vijaki Bolts, screws, studs
21.060.20 Matice Nuts
23.040.60 Prirobnice, oglavki in spojni Flanges, couplings and joints
elementi
oSIST prEN 1515-4:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
oSIST prEN 1515-4:2019
---------------------- Page: 2 ----------------------
oSIST prEN 1515-4:2019
DRAFT
EUROPEAN STANDARD
prEN 1515-4
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2019
ICS 21.060.10; 21.060.20; 23.040.60 Will supersede EN 1515-4:2009
English Version
Flanges and their joints - Bolting - Part 4: Selection of
bolting for equipment subject to the Pressure Equipment
Directive 2014/68/EU
Brides et leurs assemblages - Boulonnerie - Partie 4 : Flansche und ihre Verbindungen - Schrauben und
Sélection de la boulonnerie pour équipments relevant Muttern - Teil 4: Auswahl von Schrauben und Muttern
de la Directive Equipments sous pression 2014/68/EU zur Anwendung im Gültigkeitsbereich der
Druckgeräterichtlinie 2014/68/EU
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 74.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1515-4:2019 E
worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
oSIST prEN 1515-4:2019
prEN 1515-4:2019 (E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions, symbols and units . 5
3.1 Terms and definitions . 5
3.2 Symbols and units . 6
4 Selection of bolting types and materials . 7
4.1 General. 7
4.2 Selection of bolting types . 7
4.3 Selection of bolting material . 7
4.4 Requirements of bolting materials in Table 4 . 10
5 Manufacturing . 11
5.1 General. 11
5.2 Coating . 11
6 Technical conditions of delivery . 12
6.1 General. 12
6.2 Requirements for prevention of brittle fracture at low temperatures . 12
7 Traceability and inspection documents . 14
7.1 Traceability . 14
7.2 Inspection documents . 14
Annex A (normative) Studs threaded full length . 16
Annex B (informative) Additional bolting types and materials according to commonly used
national standards . 17
Annex C (informative) Additional requirements for hot dip galvanized carbon steel bolting . 18
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2014/68/EU aimed to be covered . 19
Bibliography . 20
2
---------------------- Page: 4 ----------------------
oSIST prEN 1515-4:2019
prEN 1515-4:2019 (E)
European foreword
This document (prEN 1515-4:2019) has been prepared by Technical Committee CEN/TC 74 “Flanges
and their joints”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 1515-4:2009
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this
document.
EN 1515 series, Flanges and their joints — Bolting, consists of the following parts:
— Part 1: Selection of bolting
— Part 2: Classification of bolt materials for steel flanges, PN designated
— Part 3: Classification of bolt materials for steel flanges, class designated
— Part 4: Selection of bolting for equipment subject to the Pressure Equipment Directive 2014/68/EU
— Part 1 to become a summary on selection of bolting.
— Part 2 to remain as the standard for PN designated flanges and be updated.
— Part 3 to remain as the standard for Steel Class designated flanges and be updated.
— Part 4 to consideration of other standards which will use parts 1 to 4 was given and although there
is an argument that the parts could be merged, in order to minimize impact on other standards
parts 1 to 4 will all be reviewed and revised.
3
---------------------- Page: 5 ----------------------
oSIST prEN 1515-4:2019
prEN 1515-4:2019 (E)
1 Scope
This document is applicable to the selection of bolting for flanged joints on equipment subject to the
Pressure Equipment Directive 2014/68/EU.
It specifies standards and additional requirements for dimensions, material properties and technical
conditions of delivery for bolting.
NOTE 1 Washers are not within the scope of this document.
The selection is based on commonly used bolting. It covers common temperature ranges of the general
service of flanges.
When selecting bolting according to this document, it is essential to take into account environmental
conditions and other parameters including type of fluids, corrosion hazards, sour service, low
temperature brittle failure and relaxation at elevated temperatures.
The purpose of this document is to provide a selection of most commonly used bolting types and bolting
material combinations as well a tool for easy selection of suitable bolting for equipment.
It is not the intention to specify all possible applications but to give guidance on the most common
applications. For example, application limits for material in the creep range are not explicitly covered in
this document. Where material standard provides mechanical properties for the creep range, respective
reference is made in Table 3.
NOTE 2 Special services and ambient conditions could require the application of coatings. It is the purchaser's
option to decide on this. Depending on the coating used, a verification of the temperature ranges given in Table 3
and Table 4 could be required.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 1092-1:2018, Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN
designated - Part 1: Steel flanges
EN 1759-1:2004, Flanges and their joint - Circular flanges for pipes, valves, fittings and accessories, Class
designated - Part 1: Steel flanges, NPS 1/2 to 24
EN 10269:2013, Steels and nickel alloys for fasteners with specified elevated and/or low temperature
properties
EN 13445-3:2014, Unfired pressure vessels - Part 3: Design
EN 13480-3:2017, Metallic industrial piping - Part 3: Design and calculation
EN ISO 898-1:2013, Mechanical properties of fasteners made of carbon steel and alloy steel - Part 1: Bolts,
screws and studs with specified property classes - Coarse thread and fine pitch thread (ISO 898-1:2013)
EN ISO 898-2:2012, Mechanical properties of fasteners made of carbon steel and alloy steel - Part 2: Nuts
with specified property classes - Coarse thread and fine pitch thread (ISO 898-2:2012)
EN ISO 3269:2000, Fasteners - Acceptance inspection (ISO 3269:2000)
4
---------------------- Page: 6 ----------------------
oSIST prEN 1515-4:2019
prEN 1515-4:2019 (E)
EN ISO 3506-1:2009, Mechanical properties of corrosion-resistant stainless steel fasteners - Part 1: Bolts,
screws and studs (ISO 3506-1:2009)
EN ISO 3506-2:2009, Mechanical properties of corrosion-resistant stainless steel fasteners - Part 2: Nuts
(ISO 3506-2:2009)
EN ISO 4014:2011, Hexagon head bolts - Product grades A and B (ISO 4014:2011)
EN ISO 4017:2014, Fasteners - Hexagon head screws - Product grades A and B (ISO 4017:2014)
EN ISO 4032:2012, Hexagon regular nuts (style 1) - Product grades A and B (ISO 4032:2012)
EN ISO 4033:2012, Hexagon high nuts (style 2) - Product grades A and B (ISO 4033:2012)
EN ISO 16228:2018, LIHSOASFLSFJ
EN ISO 16426:2002, Fasteners - Quality assurance system (ISO 16426:2002)
ISO 261:1998, ISO general purpose metric screw threads — General plan
ISO 965-2:1998, ISO general purpose metric screw threads — Tolerances — Part 2: Limits of sizes for
general purpose external and internal screw threads — Medium quality
ISO 10684:2004, Fasteners — Hot dip galvanized coatings
3 Terms and definitions, symbols and units
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
3.1.1
bolting
type of fastener such as a bolt, screw, stud, tie-rod, reduced shank bolt (also named as necked-down
bolt) or nuts
3.1.2
purchaser
person or organization that orders products in accordance with this document
Note 1 to entry: The purchaser is not necessarily, but may be, a manufacturer of equipment in accordance with
the EU Directive listed in Annex ZA. Where a purchaser has responsibilities under this EU Directive, this document
will provide a presumption of conformity with the essential requirements of the Directive so identified in
Annex ZA.
5
---------------------- Page: 7 ----------------------
oSIST prEN 1515-4:2019
prEN 1515-4:2019 (E)
3.1.3
bolting manufacturer
person or organization that is responsible for the compliance of the bolting with the requirements of
this document and the referenced standards given for bolting and starting materials agreed with the
purchaser
3.1.4
manufacturing lot
quantity of fasteners of a single designation including product grade, property class and sizes,
manufactured from bar, wire, rod or flat product from a single cast, processed through the same or
similar steps at the same time or over a continuous time period through the same heat treatment
and/or coating, if any
Note 1 to entry: Same heat treatment or coating means:
— for a continuous process, the same treatment cycle without any setting modification;
— for a discontinuous process, the same treatment cycle for identical consecutive loads (batches).
Note 2 to entry: The manufacturing lot may be split into several manufacturing batches for processing purposes
and then reassembled into the same manufacturing lot.
3.1.5
manufacturing lot number
unique number assigned by the bolting manufacturer and which allows full traceability from the
finished product back through all previous steps of the manufacturing operations to a given cast
number of the starting material of manufacture
3.1.6
starting material
material from which the bolt or nut is manufactured
Note 1 to entry: The chemical composition of the starting material shall meet the relevant material standard.
Note 2 to entry: The final heat treatment shall also meet the relevant material standard but can be performed on
the starting material or on the finished bolting.
3.1.7
creep range
temperature range at which a material has time dependent mechanical properties
3.2 Symbols and units
The symbols and respective units used in this document are defined in Table 1.
Table 1 — Symbols and units
Symbol Designation Unit
KV Impact rupture energy J
T Material impact test temperature °C
KV
T Minimum metal temperature of the bolting °C
M
6
---------------------- Page: 8 ----------------------
oSIST prEN 1515-4:2019
prEN 1515-4:2019 (E)
4 Selection of bolting types and materials
4.1 General
The selection of bolting types and bolting material combinations for a certain application shall consider
in addition to the requirements covered by this document, the range of application of the equipment for
which the bolting is intended to be used. The selection shall consider all service conditions including
maximum/minimum allowable temperature, required bolt load, tightening method and resultant
stresses, type of fluids, corrosion hazards and if applicable type and material of gasket.
Furthermore it shall be regarded that flanged joints shall remain tight under the expected operating
conditions. Other properties like residual magnetism and relaxation properties shall be evaluated by
the purchaser.
For selection of bolting types and bolting material combinations other than those listed in Table 2,
Table 3 and Table 4 according to commonly used national standards, see Annex B.
Requirements for combination of bolting and flange materials as given in some European Standards
such as EN 13480-3 or EN 13445-3 shall be observed by the user of this document.
The minimum yield strength, tensile strength, and creep of the bolting shall be suitable for the required
bolt load determined for the application and tightening method. Where there is a requirement
concerning the strength category for the bolting given in a flange standard, see EN 1092-1:2018,
EN 1759-1:2004, EN 13480-3:2017, or EN 13445-3:2014, then this shall be observed by the user of this
document.
4.2 Selection of bolting types
Selection of bolting types according to Table 2.
Table 2 — Types of bolting
Dimensional standard
Remarks
Bolts/Studs Nuts
EN ISO 4014 EN ISO 4032 Hexagon head bolt
a
EN ISO 4033
EN ISO 4017 EN ISO 4032 Hexagon head bolt, threaded full length
a
EN ISO 4033
Annex A EN ISO 4032 Stud bolt, threaded full length
a
EN ISO 4033
a
The user shall determine whether EN ISO 4033 nuts are required for the application. For sizes ≥ M39 nuts
with m = d are recommended.
4.3 Selection of bolting material
A selection of commonly used bolting material combinations and their suitable temperature ranges is
shown in Tables 3 and 4. Combination of bolting materials other than the combinations shown may
reduce the given temperature limits.
For guidance on determining conditions to determine the permissible minimum temperature, see 6.2.
7
---------------------- Page: 9 ----------------------
oSIST prEN 1515-4:2019
prEN 1515-4:2019 (E)
Table 3 — Selection of bolting material acc. to EN 10269 with suitable temperatures ranges
Steel designation name or property class
Suitable
PN
Type of bolting and description of
temperature Steel designation number
material groups
Line Class
range
Material standard
No
Bolts, screws,
up to °C Nuts Bolts, screws, studs Nuts
studs
25CrMo4 C35E
C-St
1 All –10 to 300 0,25C-1Cr-Mo 1.7218 1.1181
elev. temp.
EN 10269 EN 10269
42CrMo4 C45E
C-St
2 All –10 to 300 0,42C-1Cr-Mo 1.7225 1.1191
elev. temp.
EN 10269 EN 10269
e
25CrMo4
25CrMo4
3 All –60 to 500 0,25C-1Cr-Mo 0,25C-1Cr-Mo 1.7218
1.7218
EN 10269
EN 10269
e 42CrMo4
25CrMo4
1.7225
4 All –40 to 400 0,25C-1Cr-Mo 0,42C-1Cr-Mo
1.7218
EN 10269
EN 10269
42CrMo4
42CrMo4
5 All - 40 to 400 0,42C-1Cr-Mo 0,42C-1Cr-Mo 1.7225 1.7225
EN 10269
EN 10269
e 42CrMo4
42CrMo5–6
0,42C-1,3Cr-
1.7225
6 All –10 to 500 0,42C-1Cr-Mo
1.7233
0,6Mo
EN 10269
EN 10269
e 42CrMo4
40CrMoV4–6
0,40C-1Cr-0,6Mo-
1.7225
7 All –10 to 500 0,42C-1Cr-Mo
1.7711
V
EN 10269
EN 10269
e 21CrMoV5–7
21CrMoV5–7
0,21C-1,3Cr- 0,21C-1,3Cr-0,7Mo-
c 1.7709
8 –10 to 500
All 1.7709
0,7Mo-V V
EN 10269
EN 10269
e 20CrMoVTiB4–10
20CrMoVTiB4–10
0,2C-1Cr-1Mo-V- 0,2C-1Cr-1Mo-V-Ti-
1.7729
9 All –10 to 500
1.7729
Ti-B B
EN 10269
EN 10269
e X6NiCrTiMoVB
X6NiCrTiMoVB
25–15–2
25Ni-15Cr-0,2Ti- 25Ni-15Cr-0,2Ti- 25–15–2
b f
10
All –60 to 650
Mo-V-B Mo-V-B 1.4980
1.4980
EN 10269
EN 10269
e X22CrMoV12–1 QT2
X22CrMoV12–1 QT2
b
13 –10 to 500 12Cr-1Mo-V 12Cr-1Mo-V 1.4923 1.4923
All
EN 10269 EN 10269
e X7CrNiMoBNb16–16
X7CrNiMoBNb16–16
16Cr-16Ni-Mo-B-
1.4986
11 All –10 to 500 16Cr-16Ni-Mo-B-Nb
1.4986
Nb
EN 10269
EN 10269
8
---------------------- Page: 10 ----------------------
oSIST prEN 1515-4:2019
prEN 1515-4:2019 (E)
Steel designation name or property class
Suitable
PN
Type of bolting and description of
temperature Steel designation number
material groups
Line Class
range
Material standard
No
Bolts, screws,
up to °C Nuts Bolts, screws, studs Nuts
studs
X5CrNiMo17–12–2 X5CrNiMo17–12–2
c
AT 1.4401
PN 40
12 –196 to 550 17Cr-12Ni-2Mo 17Cr-12Ni-2Mo
1.4401 EN 10269
Cl. 300
EN 10269
X5CrNiMo17–12–2 X5CrNiMo17–12–2
PN 100 17Cr-12Ni-2Mo AT+C 1.4401
a
13 17Cr-12Ni-2Mo
–196 to 200
Cl. 600 AT+C 1.4401 EN 10269
EN 10269
X5CrNi18–10 X5CrNi18–10
c
AT 1.4301
PN 40
14 –196 to 550 18Cr-10Ni 18Cr-10Ni
1.4301 EN 10269
Cl. 300
EN 10269
X5CrNi18–10 X5CrNi18–10
PN 100 18Cr-10Ni AT+C 1.4301
d a
15 18Cr-10Ni
−60 to 200
Cl. 600 AT+C 1.4301 EN 10269
EN 10269
a
Allowable stresses for elevated temperatures may be taken from the material in AT condition, as no stresses
exist for the cold worked condition.
b
Commonly used for PN 160 up to PN 400.
c
Is limited to be used for max. PN 40/Cl. 300 (low strength bolting).
d
−200 °C for studs or for bolts manufac
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.