SIST EN 3833:2019
(Main)Aerospace series - Bolts, MJ threads, in heat resisting nickel base alloy NI-PH2601 (Inconel 718), passivated - Classification: 1 550 MPa (at ambient temperature) / 650 °C - Technical specification
Aerospace series - Bolts, MJ threads, in heat resisting nickel base alloy NI-PH2601 (Inconel 718), passivated - Classification: 1 550 MPa (at ambient temperature) / 650 °C - Technical specification
This European standard specifies the characteristics, qualification and acceptance requirements for
bolts with MJ threads in NI-PH2601, passivated, for aerospace applications.
Classification: 1 550 MPa1/650 °C2.
It is applicable whenever referenced.
Luft- und Raumfahrt - Schrauben, MJ-Gewinde, aus hochwarmfester Nickelbasislegierung NI-PH2601 (Inconel 718), passiviert - Klasse: 1 550 MPa (bei Raumtemperatur)/650 °C - Technische Lieferbedingungen
Diese Europäische Norm legt die Eigenschaften sowie die Qualifikations und Annahmebedingungen für Schrauben mit MJ Gewinde aus NI PH2601, passiviert, für Anwendungen in der Luft und Raumfahrt fest.
Klassifizierung: 1 550 MPa /650 °C .
Die Norm ist immer dann anzuwenden, wenn auf sie verwiesen wird.
Série aérospatiale - Vis à filetage MJ, en alliage résistant à chaud à base de nickel NI-PH2601 (Inconel 718), passivées - Classification : 1 550 MPa (à température ambiante) / 650 °C - Spécification technique
La présente norme européenne spécifie les caractéristiques, les exigences de qualification et de réception des vis à filetage MJ en NI-PH2601, passivées, pour applications aérospatiales.
Classification : 1 550 MPa1/650 °C2.
Elle est applicable chaque fois qu'elle est citée en référence.
Aeronavtika - Sorniki, navoj MJ, iz toplotnoodporne zlitine na nikljevi osnovi NI-PH2601 (Inconel 718), pasivirane - Klasifikacija 1550 MPa (pri okoljski temperaturi)/650 °C - Tehnična specifikacija
Ta evropski standard določa karakteristike ter zahteve glede kvalifikacije in sprejemljivosti za
sornike z navojem MJ iz NI-PH2601, pasivirane, za uporabo v aeronavtiki.
Klasifikacija: 1550 MPa1/650 °C2.
Uporablja se, kadar je naveden.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 3833:2019
01-junij-2019
1DGRPHãþD
SIST EN 3833:2005
$HURQDYWLND6RUQLNLQDYRM0-L]WRSORWQRRGSRUQH]OLWLQHQDQLNOMHYLRVQRYL1,
3+ ,QFRQHO SDVLYLUDQH.ODVLILNDFLMD03D SULRNROMVNL
WHPSHUDWXUL ƒ&7HKQLþQDVSHFLILNDFLMD
Aerospace series - Bolts, MJ threads, in heat resisting nickel base alloy NI-PH2601
(Inconel 718), passivated - Classification: 1 550 MPa (at ambient temperature) / 650 °C -
Technical specification
Luft- und Raumfahrt - Schrauben, MJ-Gewinde, aus hochwarmfester
Nickelbasislegierung NI-PH2601 (Inconel 718), passiviert - Klasse: 1 550 MPa (bei
Raumtemperatur)/650 °C - Technische Lieferbedingungen
Série aérospatiale - Vis à filetage MJ, en alliage résistant à chaud à base de nickel NI-
PH2601 (Inconel 718), passivées - Classification : 1 550 MPa (à température ambiante) /
650 °C - Spécification technique
Ta slovenski standard je istoveten z: EN 3833:2019
ICS:
49.030.20 Sorniki, vijaki, stebelni vijaki Bolts, screws, studs
SIST EN 3833:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 3833:2019
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SIST EN 3833:2019
EN 3833
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2019
EUROPÄISCHE NORM
ICS 49.030.20 Supersedes EN 3833:2004
English Version
Aerospace series - Bolts, MJ threads, in heat resisting
nickel base alloy NI-PH2601 (Inconel 718), passivated -
Classification: 1 550 MPa (at ambient temperature) / 650
°C - Technical specification
Série aérospatiale - Vis à filetage MJ, en alliage résistant Luft- und Raumfahrt - Schrauben, MJ-Gewinde, aus
à chaud à base de nickel NI-PH2601 (Inconel 718), hochwarmfester Nickelbasislegierung NI-PH2601
passivées - Classification : 1 550 MPa (à température (Inconel 718), passiviert - Klasse: 1 550 MPa (bei
ambiante) / 650 °C - Spécification technique Raumtemperatur)/650 °C - Technische
Lieferbedingungen
This European Standard was approved by CEN on 5 November 2018.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, 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
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3833:2019 E
worldwide for CEN national Members.
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SIST EN 3833:2019
EN 3833:2019 (E)
Contents
Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Quality assurance . 6
5 Requirements . 7
Annex A (normative) Passivation treatment for bolts . 23
Annex B (informative) Tensile, creep test and tension fatigue – Areas and loads formulae . 24
Annex C (informative) Standard evolution form . 26
2
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SIST EN 3833:2019
EN 3833:2019 (E)
European foreword
This document (EN 3833:2019) has been prepared by the Aerospace and Defence Industries
Association of Europe - Standardization (ASD-STAN).
After enquiries and votes carried out in accordance with the rules of this Association, this Standard has
received the approval of the National Associations and the Official Services of the member countries of
ASD, prior to its presentation to CEN.
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 October 2019, and conflicting national standards shall
be withdrawn at the latest by October 2019.
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 3833:2004.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
3
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SIST EN 3833:2019
EN 3833:2019 (E)
1 Scope
This European standard specifies the characteristics, qualification and acceptance requirements for
bolts with MJ threads in NI-PH2601, passivated, for aerospace applications.
1 2
Classification: 1 550 MPa /650 °C .
It is applicable whenever referenced.
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 ISO 3452-1, Non-destructive testing — Penetrant testing — Part 1: General principles
EN ISO 4288, Geometrical Product Specifications (GPS) — Surface texture: Profile method — Rules and
procedures for the assessment of surface texture
EN ISO 6508-1, Metallic materials — Rockwell hardness test — Part 1: Test method
EN ISO 6892-1, Metallic materials — Tensile testing — Part 1: Method of test at room temperature
EN ISO 6892-2, Metallic materials — Tensile testing — Part 2: Method of test at elevated temperature
EN ISO 9227, Corrosion tests in artificial atmospheres — Salt spray tests
ISO 2859-1, Sampling procedures for inspection by attributes — Part 1: Sampling schemes indexed by
acceptance quality limit (AQL) for lot-by-lot inspection
ISO 5855-2, Aerospace — MJ threads — Part 2: Limit dimensions for bolts and nuts
ISO 7961, Aerospace — Bolts — Test methods
3
ASTM E112-13, Standard Test Methods for Determining Average Grain Size
3 Terms and definitions
For the purposes of this standard, the following terms and definitions apply.
3.1
batch
quantity of finished parts, of the same type and same diameter, produced from the same material
obtained from the same melt, manufactured in the course of the same production cycle, following the
same manufacturing route and having undergone all the relevant heat treatments and surface
treatments
1
Minimum tensile strength of the material at ambient temperature.
2
Maximum test temperature of the parts.
3
Published by: ASTM National (US) American Society for Testing and Materials http://www.astm.org.
4
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EN 3833:2019 (E)
3.2
inspection lot
quantity of parts from a single production batch with the same part number which completely defines
the part
3.3
Surface discontinuities
3.3.1
crack
rupture in the material which may extend in any direction and which may be intercrystalline or
transcrystalline in character
3.3.2
seam
open surface defect
3.3.3
lap
surface defect caused by folding over metal fins or sharp corners and then rolling or forging them into
the surface
3.3.4
inclusions
non-metallic particles originating from the material manufacturing process
Note 1 to entry: These particles may be isolated or arranged in strings.
3.4
test temperature
ambient temperature unless otherwise specified
3.5
simple random sampling
taking of n items from a population of N items in such a way that all possible combinations of n items
have the same probability of being chosen
3.6
critical defect
defect that, according to judgement and experience, is likely to result in hazardous or unsafe conditions
for individuals using, maintaining, or depending upon the considered product, or that is likely to
prevent performance of the function of a major end item
3.7
major defect
defect other than critical, that is likely to result in a failure or to reduce materially the usability of the
considered product for its intended purpose
3.8
minor defect
defect that is not likely to reduce materially the usability of the considered product for its intended
purpose, or that is a departure from established specification having little bearing on the effective use
or operation of this product
5
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EN 3833:2019 (E)
3.9
sampling plan
plan according to which one or more samples are taken in order to obtain information and possibly to
reach a decision
3.10
Limiting Quality
LQ
10
quality limit which, in a sampling plan, corresponds to a specified 10 % probability of acceptance
3.11
Acceptance Quality Limit
AQL
quality limit which, in a sampling plan, corresponds to a specified but relatively high probability of
acceptance
Note 1 to entry: It is the maximum per cent defective (or the maximum number of defects per hundred units)
that, for purposes of sampling inspection can be considered satisfactory as a process average.
3.12
finished bolt
bolt ready for use, inclusive of any possible treatments and/or surface coatings, as specified in the
product standard or definition document
3.13
definition document
document specifying all the requirements for finished bolts
4 Quality assurance
4.1 Qualification
The manufacturer’s operations shall be an approved production organisation for aerospace products
and shall demonstrate that it has implemented and is able to maintain a quality management system
(e. g. according to EN 9100 or an equivalent aerospace accepted and established quality management
system).
The qualification procedure for aerospace standard products (e.g. according to EN 9133 or an
equivalent aerospace accepted and established qualification procedure) shall be used and documented
according to the specified tests if not otherwise agreed between customer and supplier.
The product qualification shall be performed to the process as defined in e. g. EN 9133 to achieve a
qualification approval from the controlling Certification Authority (CA).
Qualification inspections and tests (requirements, methods, numbers of bolts) are specified in Table 1.
They shall be carried out on:
— each type and diameter of bolt;
— 25 bolts selected from a single inspection lot by simple random sampling.
6
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EN 3833:2019 (E)
The test programme may possibly be reduced, or the qualification of a bolt be granted without
inspection or testing. Any such decision shall be based on the results obtained on similar types and
diameters of bolts provided that the design and manufacturing conditions are identical.
Table 2 indicates the allocation of bolt samples for the inspections and tests.
4.2 Acceptance
4.2.1 Purpose
The purpose of acceptance inspections and tests is to check, as simply as possible, by a method
representative of actual use conditions, with the uncertainty inherent to statistical sampling, that the
bolts constituting the batch satisfy the requirements of this standard.
4.2.2 Conditions
Acceptance inspections and tests (requirements, methods, numbers of bolts) are specified in Table 1;
they shall be carried out on each batch. Bolts from the batch to be tested shall be selected by simple
random sampling.
Each bolt may be submitted to several inspections or tests.
If a more stringent inspection is deemed necessary, all or part of the qualification inspections and tests
may be performed during the acceptance inspection and testing. In this case, the number of bolts
submitted to these inspections and tests is the same as that submitted for qualification inspection and
tests.
4.2.3 Responsibility
Acceptance inspections and tests shall be carried out by the manufacturer, or under his responsibility.
4.2.4 Inspection and test report
A test report showing actual numerical values shall be provided if specified in the purchase order.
5 Requirements
See Table 1.
Table 1 — Technical requirements and test methods
a
Clause Characteristic Requirement Inspection and Sample
Q/A
test method size
5.1 Material In accordance with the product standard or Chemical analysis Q
definition document or certificate of
A
compliance issued
by the manufac-
turer of the semi-
finished product
5.2 Dimensions, In accordance with the product standard or Standard gauging Q 25
tolerances and definition document
A Table 3
tolerances of
and
form and
Table 4
position
7
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a
Clause Characteristic Requirement Inspection and Sample
Q/A
test method size
5.3 Manufacturing
5.3.1 Forging The head of the bolts shall be formed by hot or cold The method of Q
forging. If hot forged, the forging temperature shall forging shall be
be between 1 040 °C and 1 080 °C and they shall be indicated.
air cooled.
The equipment shall ensure a uniform temperature The equipment
throughout the batch. shall be approved.
5.3.2 Heat treatment The heat treatment medium or atmosphere shall not Calibration of the Q
cause any surface contamination except as heat treatment
permitted by 5.5.6. equipment shall be
confirmed.
Any scale not removed by subsequent machining Visual examination
shall be removed by abrasive blasting with an
appropriate equipment.
The headed blanks shall be precipitation heat Examination of the
treated at (720 ± 5) °C, held at temperature for heat treatment
8 h ± 15 min, furnace cooled at (55 ± 5) °C per hour specification
to (620 ± 5) °C, held at 620 °C for 8 h ± 15 min,
followed by air cooling or faster.
Instead of the 55 °C per hour cooling rate to 620 °C,
parts may be furnace cooled at any rate provided
the time at 620 °C is adjusted to give a total
precipitation time of 18 h min.
5.3.3 Removal of After precipitation treatment the headed blanks See 5.5.6.
surface conta- shall have all the shank and bearing surface of the
mination head machined:
a) for the removal of all surface contamination and
oxide penetration;
b) to obtain a clean smooth surface.
The amount of material removed shall be as little as See 5.5.1.
practicable and shall respect the requirements of
5.5.1.
5.3.4 Head to shank After completion of heat treatment and machining, Dimensional check Q 25
fillet the underhead fillet radius shall be cold rolled to (see 5.2) and
A Table 3
remove all visual signs of machining and to create visual examination
and
cold working.
Table 4
This may cause distortion which shall not exceed
the values in Figure 1, unless otherwise specified on
the product standard or definition document.
For parts with compound radii between head and
shank (e.g. T head bolts), only the radius that blends
with the head shall be cold worked, however it is
acceptable for cold work to extend over the
compound radius.
The fillet shall not show seams or inclusions
(see Table 5).
5.3.5 Threads Shall be formed by a single rolling process after full Q
heat treatment (see Figure 2).
5.3.6 Surface In accordance with the product standard or EN ISO 4288 Q 3
roughness definition document
Visual examination A Table 3
and
Table 4
5.3.7 Passivation Uncoated finished bolts shall be passivated in EN ISO 9227, Q 5
treatment accordance with Annex A (normative). neutral salt spray
(NSS) test
8
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EN 3833:2019 (E)
a
Clause Characteristic Requirement Inspection and Sample
Q/A
test method size
After 2 h of salt spray, bolts shall show no evidence Visual examination A 100 %
of corrosion or staining.
5.3.8 Surface coating In accordance with the product standard or See applicable Q 3
definition document coating standard.
A Table 3
and
Table 4
5.4 Mechanical A test sample shall be selected from each diameter
properties of bar/wire taken from each cast, and shall be heat
treated together with a production batch of bolts.
The sample selected shall be sufficient to provide
tensile and stress rupture test specimens. The test
specimens shall meet the mechanical properties
required by the material standard.
5.4.1 Tensile The finished bolts shall withstand the minimum
strength tensile loads specified in Table 6.
Externally wrenched bolts shall not fail in the head
to shank area when subjected to the tensile test.
Tensile tests are not applicable to the following:
a) protruding head bolts of grip length < twice the
nominal shank diameter;
b) countersunk head bolts of grip length < × 2,5
the nominal shank diameter;
c) threaded to head bolts of overall length < × 3
the nominal shank diameter or bolts having an
overall length < 18 mm;
d) bolts of diameters of < 4 mm.
In such cases acceptability shall be based on the
results from test bars of the same material heat
treated within the same process cycle.
5.4.1.1 ISO 7961 for bolts Q 4
— at
ambient
EN ISO 6892-1 for A Table 7
tempera-
test specimens or
ture
Table 8
5.4.1.2 (650 ± 5) °C ISO 7961 for bolts Q 4
— at
elevated
EN ISO 6892-2 for
tempera-
test specimens
ture
5.4.2 Creep test The finished bolts shall be maintained at ISO 7961 Q 3
(650 ± 2) °C while the load specified in Table 6 is
applied continuously.
There shall be no rupture in less than 23 h.
9
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EN 3833:2019 (E)
a
Clause Characteristic Requirement Inspection and Sample
Q/A
test method size
5.4.3 Tension fatigue The test shall be carried out on finished bolts. ISO 7961 Q 5
strength
Tension fatigue tests are not applicable to the
following:
a) protruding head bolts of nominal length < 3 D;
b) countersunk head bolts of nominal length
< 3 D;
c) bolts having a nominal length < 18 mm;
d) diameters < 5 mm;
e) bolts with drilled shanks;
f) bolts threaded to head.
Life:
— mean value:
min. 65 000 cycles.
— individual value:
min. 45 000 cycles;
max. 130 000 cycles.
Frequency: 140 Hz max.
Loads: see Table 9.
For individual fatigue life values less than
65 000 cycles, the breaking:
a) shall occur in the thread in the case of parts
with full or pitch diameter shanks;
b) is acceptable in the groov
...
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