SIST EN 764-4:2003

Pressure equipment - Part 4: Establishment of technical delivery conditions for metallic materials

This Part of the European Standard specifies the requirements for the establishment of the technical delivery conditions in form of: - European material Standard; - European approval for material (EAM); - Particular material appraisal; for metallic materials for pressure equipment in all product forms. When properties specific to an application are relevant, e.g. creep, reference should also be made to the appropriate product standard.

Druckgeräte - Teil 4: Erstellung von technischen Lieferbedingungen für metallische Werkstoffe

Dieser Anhang legt die Anforderungen für die Festlegung der technischen Lieferbedingungen als: - Europäische Werkstoffnorm; - Europäische Werkstoffzulassung (EAM); - Werkstoff-Einzelgutachten; für metallische Werkstoffe für Druckgeräte in allen Erzeugnisformen fest. Wenn Eigenschaften für eine bestimmte Anwendung relevant sind, z.B. Kriechen, sollte der Verweis auf entsprechende Normen gemacht werden.

Equipements sous pression - Partie 4: Etablissement des conditions techniques de livraison des matériaux métalliques

La présente partie de la Norme européenne spécifie les exigences relatives a l'établissement des conditions techniques de livraison sous forme de: - norme européenne de matériaux, - approbation européenne de matériaux (EAM), - évaluation particuliere de matériaux, pour les matériaux métalliques destinés aux équipements sous pression sous toutes les formes de produits. Lorsque certaines propriétés spécifiques a une application sont pertinentes, par exemple le fluage, il convient de faire également référence a la norme de produit correspondante.

Tlačna oprema - 4. del: Strokovne podlage in pogoji za dobavo kovinskih materialov

General Information

• Status: Withdrawn
• Publication Date: 30-Nov-2003
• Withdrawal Date: 21-Jan-2015
• ICS: 23.020.32 - Pressure vessels
• Technical Committee: TLP - Pressure vessels
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 22-Jan-2015
• Due Date: 14-Feb-2015
• Completion Date: 22-Jan-2015
• Directive: 97/23/EC - Directive 97/23/EC of the European Parliament and of the Council of 29 May 1997 on the approximation of the laws of the Member States concerning pressure equipment
• Mandate: M/071 - Mandate to CEN for standardization in the field of Pressure equipment
• Ref Project: EN 764-4:2002 - Pressure equipment - Part 4: Establishment of technical delivery conditions for metallic materials

Relations

• Replaced By: SIST EN 764-4:2015 - Pressure equipment - Part 4: Establishment of technical delivery conditions for metallic materials
• Effective Date: 01-Mar-2015
• Parent: SIST EN 13445-2:2002 - Unfired pressure vessels - Part 2: Materials
• Effective Date: 22-Dec-2008

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 764-4:2003
01-december-2003
7ODþQDRSUHPDGHO6WURNRYQHSRGODJHLQSRJRML]DGREDYRNRYLQVNLK
PDWHULDORY
Pressure equipment - Part 4: Establishment of technical delivery conditions for metallic
materials
Druckgeräte - Teil 4: Erstellung von technischen Lieferbedingungen für metallische
Werkstoffe
Equipements sous pression - Partie 4: Etablissement des conditions techniques de
livraison des matériaux métalliques
Ta slovenski standard je istoveten z: EN 764-4:2002
ICS:
23.020.30 7ODþQHSRVRGHSOLQVNH Pressure vessels, gas
MHNOHQNH cylinders
SIST EN 764-4:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 764-4:2003

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SIST EN 764-4:2003
EUROPEAN STANDARD
EN 764-4
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2002
ICS 23.020.30
English version
Pressure equipment - Part 4: Establishment of technical delivery
conditions for metallic materials
Equipements sous pression - Partie 4: Etablissement des Druckgeräte - Teil 4: Erstellung von technischen
conditions techniques de livraison des matériaux Lieferbedingungen für metallische Werkstoffe
métalliques
This European Standard was approved by CEN on 19 August 2002.
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 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2002 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 764-4:2002 E
worldwide for CEN national Members.

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SIST EN 764-4:2003
EN 764-4:2002 (E)
Contents
page
Foreword.3
1 Scope .4
2 Normative references .4
3 Terms and definitions, symbols and abbreviations.5
3.1 Terms and Definitions .5
3.2 Symbols and abbreviations .5
4 Types of technical delivery conditions.7
4.1 European Standards for material for pressure equipment.7
4.2 European approvals for materials for pressure equipment .7
4.3 Particular material appraisals for pressure equipment .7
5 Content of technical delivery conditions for materials for pressure equipment .8
5.1 General.8
5.2 Requirements .8
5.3 Testing and inspection.10
5.4 Marking .11
Annex A (normative) Procedures for the establishment of European Approvals for pressure
equipment materials (EAM).12
A.1 European Approvals of established materials.12
A.2 European Approvals for new materials .12
A.3 Procedure for the transformation of existing national material specifications into European
Material Data Sheets.12
A.4 First testing of the production of established materials .15
A.5 First testing of the production of new materials .16
A.6 Title scheme and structure of a European Material Data Sheet (EMDS) for materials for
Pressure Equipment .17
Annex B (normative) Appraisal schedule for ferritic and martensitic steels.20
B.1 General.20
B.2 Test procedures .20
B.3 Basic testing.21
B.4 Subsequent testing.24
B.5 Collective tests.25
Annex C (normative) Appraisal schedule for austenitic and austenitic-ferritic steels .27
C.1 General.27
C.2 Test procedures .27
C.3 Basic testing.28
C.4 Sampling.30
C.5 Extent of testing.35
Annex D (normative) Appraisal schedule for cast steels.36
D.1 General.36
D.2 Test procedures .36
D.3 Basic testing.37
D.4 Sampling.39
D.5 Extent of testing.39
Annex E (normative) Welding and heat treatment conditions for verification of the weldability of fine-
grain steels .40
E.1 General.40
E.2 Determination of the cooling time.40
E.3 Heat treatment conditions.41
Annex F (normative) Metallographic investigation of the sensitivity to stress relief cracking .42
Bibliography .43
2

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SIST EN 764-4:2003
EN 764-4:2002 (E)
Foreword
This document EN 764-4:2002 has been prepared by Technical Committee CEN/TC 54 "Unfired pressure
Vessels", the secretariat of which is held by BSI.
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 April 2003, and conflicting national standards shall be withdrawn at the latest by
April 2003.
This European Standard “Pressure equipment” consists of seven Parts which are:
 Part 1: Pressure, temperature, volume, nominal size.
 Part 2: Quantities, symbols and units.
 Part 3: Definition of parties involved.
 Part 4: Establishment of technical delivery conditions for materials.
 Part 5: Compliance and Inspection Documentation of Materials.
 Part 6: Operating instructions.
 Part 7: Safety systems and unfired pressure equipment.
Annexes A to F are normative.
The terminology for safety systems is dealt with in prEN 13340 Pressure equipment — Safety devices for the
prevention of excessive pressure — Terminology.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,
France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain,
Sweden, Switzerland and the United Kingdom.
3

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SIST EN 764-4:2003
EN 764-4:2002 (E)
1 Scope
This Part of the European Standard specifies the requirements for the establishment of the technical delivery
conditions in form of:
 harmonized European Standard for material;
 European approval for material (EAM);
 particular material appraisal
for metallic materials for pressure equipment in all product forms, and is restricted to steel at present. Welding
consumables are not covered by this standard.
2 Normative references
This European Standard incorporates, by dated or undated reference, provisions from other publications. These
normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For
dated references, subsequent amendments to or revisions of any of these publications apply to this European
Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the
publication referred to applies (including amendments).
prEN 764-1:2001, Pressure equipment — Terminology -Part 1: Pressure, temperature, volume, nominal size.
EN 764-2:2002, Pressure equipment — Terminology - Part 2: Quantities, symbols and units.
EN 895, Destructive tests on welds in metallic materials — Transverse tensile test.
EN 1011-2, Welding — Recommendations for welding of metallic materials — Part 2: Arc welding of ferritic steels.
EN 10002-1, Metallic materials — Tensile testing — Part 1: Method of test at ambient temperature.
EN 10002-5, Metallic materials — Tensile testing — Part 5: Method of testing at elevated temperature.
EN 10045-1, Metallic materials —Charpy impact test — Part 1: Test method.
EN 10045-2, Metallic materials —Charpy impact test — Part 2: Verification of the testing machine (pendulum
impact).
EN 10204:1991, Metallic products — Types of inspection documents.
EN 10213-1, Technical delivery conditions for steel castings for pressure purposes — Part 1: General.
EN 10291, Metallic materials — Uniaxial creep testing in tension — Method of test.
EN 13445-2:2002, Unfired pressure vessels — Part 2: Materials.
prEN ISO 17642-1, Destructive tests on welds in metallic materials — Cold cracking tests for weldments — Part 1:
General.
prEN ISO 17642-2, Destructive tests on welds in metallic materials — Cold cracking tests for weldments — Part 2:
Self-restraint tests.
prEN ISO 17642-3, Destructive tests on welds in metallic materials — Cold cracking tests for weldments — Part 3:
Externally loaded tests.
EURONORM 103-71, Microscopic determination of the ferrite or austenitic grain size of steels.
4

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SIST EN 764-4:2003
EN 764-4:2002 (E)
CR ISO 15608:2000, Welding — Guidelines for a metallic material grouping system (ISO/TR 15608:2000).
EURONORM 114-72, Determination of the resistance of stainless austenitic steels to intergranular corrosion;
corrosion test in sulfuric acid copper sulfate solution (Monypenny-Strauss test).
3 Terms and definitions, symbols and abbreviations
For the purposes of this European Standard the following terms and definitions apply.
3.1 Terms and definitions
3.1.1
European Approval for materials (EAM)
technical approval for materials for pressure equipment with no harmonized standard, see also [1], Article 11
3.1.2
European Material Data Sheet (EMDS)
document defining the requirements for a material approved for use in the manufacture of pressure equipment by a
European approval for materials according to the provisions of annex A
3.1.3
established material
metallic materials specified in a product standard for pressure equipment; or in an EAM
3.1.4
new material
metallic material not included in a product standard or in an EAM
3.2 Symbols and abbreviations
For the purposes of this standard the symbols and abbreviations of prEN 764-1:2001, EN 764-2:2002 and the
following in Table 1 and Table 2 will apply.
5

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SIST EN 764-4:2003
EN 764-4:2002 (E)
Table 1 — Symbols and units
Symbols Characteristic Units
b width mm
e thickness mm
h max. permissible reinforcement of weld mm
T temperature °C
T design temperature °C
D
A elongation after fracture %
C constant —
D diameter mm
2
a
E modulus of elasticity N/mm
2
a
G
shear modulus N/mm
HB Brinell hardness —
HV Vickers hardness —
KV Charpy V-notch impact energy J
L
length (gauge length) mm
o
P
pressure bar
P
parameter according to Larson-Miller —
LM
2
a
R
yield strength N/mm
e
2
a
R upper yield strength N/mm
eH
2
a
R lower yield strength N/mm
eL
2
a
R tensile strength N/mm
m
2
a
R creep rupture strength for t hours at T °C
N/mm
m/t/T
2
a
R tensile strength at temperature T
N/mm
m/T
2
a
R 0,2 % proof strength at temperature T N/mm
p0,2/T
2
a
R 0,2 % proof strength N/mm
p0,2
2
a
R 1,0 % proof strength N/mm
1,0
p
2
a
R 1,0 % proof strength at temperature T N/mm
p1,0/T
2
S original cross section area mm
0
t
time h
1-
alinear expansion coefficient K
estrain %
v Poisson's ratio —
2
a
1 N/mm = 1 MPa
6

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SIST EN 764-4:2003
EN 764-4:2002 (E)
Table 2 — Abbreviations
Abbreviation Description
EAM European approval of material
EC European Commission
EMDS European material data sheet
NDE non destructive examination
PED Pressure equipment directive
OJEC Official Journal of European Communities
RA Responsible authority
4 Types of technical delivery conditions
4.1 European Standards for material for pressure equipment
European material Standards define the technical requirements for materials frequently used in pressure equip-
ment in Europe. It is within the remit of the responsible technical committee for materials to check at each occasion
of the revision work whether related materials covered by a European Material Data Sheet (EMDS) are used to an
extent that justifies the incorporation of the material in the European material Standard.
4.2 European approvals for materials for pressure equipment
European approvals for materials are intended for repeated use. They are established on the basis of Article 11 of
the PED and apply to materials or treatment conditions and product forms or dimensions not covered in a harmo-
nized European material Standard for pressure equipment.
The European approval for materials for pressure equipment result in European Material Data Sheets.
NOTE Reference of available European Material Data Sheets is published in the Official Journal of the European
Community (OJEC).
4.3 Particular material appraisals for pressure equipment
Particular material appraisals apply for individual cases as for example:
a) a material or a product form or a thickness not covered by a harmonized European material Standard or EMDS
intended for use in a particular pressure equipment;
b) a product specified in a European material Standard or EMDS for materials for pressure equipment is intended
in an exceptional case for service conditions outside its specified range of application.
NOTE Under the scope of the PED for pressure equipment in category III and IV the particular material appraisal shall be
performed by the Notified Body in charge of the conformity assessment for the pressure equipment.
Where relevant to the pressure equipment under consideration the requirements given in annexes B to F may be
used as guidance.
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SIST EN 764-4:2003
EN 764-4:2002 (E)
5 Content of technical delivery conditions for materials for pressure equipment
5.1 General
Technical delivery conditions for materials for pressure equipment shall describe the material with its specific
properties and shall at least contain clauses for scope, normative references, requirements, testing and inspection
and marking and restriction on application where necessary. EMDS and particular material appraisals shall take
account of material processing. If appropriate, information on the allocation of the material to the relevant material
group in CR ISO 15608 shall be provided with the technical material specification. Particular material appraisals
shall always specify in detail the range of application.
For EMDS a list of material manufacturers shall be provided where appropriate.
5.2 Requirements
5.2.1 Manufacture
The method of manufacture of the material shall be specified. Details need only be specified to an extent as is
necessary to ensure the specified quality.
5.2.2 Treatment condition
The following conditions shall be specified:
 type of heat treatment condition;
 surface condition of the material at the time of delivery, where necessary.
5.2.3 Chemical composition
The chemical composition limits shall be specified. Where the composition of the product may be different from the
composition of the cast, limit deviations from the cast analysis shall be specified.
The specification of the chemical composition shall include the following:
"Elements, which can influence the essential material characteristics, not specified for the specific material shall not
intentionally be added. All reasonable precautions shall be taken to prevent the addition of elements from scrap or
other materials used in the manufacture, but residual elements may be present, provided the specified mechanical
properties are met and the applicability is not impaired."
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SIST EN 764-4:2003
EN 764-4:2002 (E)
5.2.4 Mechanical and technological properties
The following properties shall be specified for the individual steel grades.
a) Tensile properties at room temperature
The technical material specification shall specify the tensile properties in the direction and location of test
pieces which shall be representative of the material characteristics.
Where the form and thickness of the products permit the verification testing of transverse test pieces, the
property characteristics shall be given for the transverse direction.
In those cases, where the properties in the longitudinal direction are lower, this shall be taken into account;
1) Yield or proof strength
For austenitic steels minimum proof strength values for 1 % non proportional extension (R and,
p1,0/min
where appropriate, R values additionally) shall be specified.
p0,2/min
For all other materials the minimum value for the upper yield strength or, for cases where no yield phe-
nomenon occurs, the minimum proof strength for 0,2 % non proportional extension shall be specified;
2) Tensile strength
For the tensile strength a minimum value shall be specified. A maximum value shall be specified addition-
ally where no maximum yield or proof strength value is specified;
3) Elongation after fracture
The minimum percentage elongation after fracture for the gauge length specified in accordance with
EN 10002-1 shall be specified;
b) Impact properties
The impact requirements of the material (temperature, energy) shall be specified with regard to the pressure
equipment requirements to avoid brittle fracture;
c) Elevated temperature tensile properties
1) The following tensile properties shall be specified for temperatures in accordance with Table 3:
 for austenitic steels intended for an application at a temperature ‡ 50 °C and in accordance with Table 3
the minimum 1,0 % proof strength at elevated temperatures. It is also proposed to specify the minimum
elevated temperature tensile strength;
 for all other steels intended for an application at a temperature in accordance with Table 3, but not higher
than the maximum design temperature rounded up to 50 K, the minimum 0,2 % proof strength at elevated
temperatures.
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SIST EN 764-4:2003
EN 764-4:2002 (E)
Table 3 — Elevated temperatures for steels
Steel group Temperature
to a maximum preferably in
from
in accordance with
of steps of
CR ISO 15608:2000
°C °C K
2, 7.1, 7.2, 3
100 400 50
1.1 to 1.3
1.4, 4, 5.1, 5.2 100 500 50
5.3, 5.4, 6 100 600 50
8 50 600 50
a
10 50 250 50
a
250 °C if welded, 280 °C unwelded
2) The specified minimum proof strength values at elevated temperatures should be derived in accordance
with prEN 10134 on the basis of data determined in accordance with EN 10002-1 and EN 10002-5;
d) Technological properties
Where necessary, requirements for formability e.g. specified on the basis of flattening or ring expanding tests
or on the basis of tests for the deformation properties perpendicular to the surface of the product (see
EN 10164) or requirements for other technological properties, important for the processing or use of the mate-
rial, shall be specified.
5.2.5 Other material properties
Where necessary, the requirements for properties other than those covered under 5.2.2 to 5.2.4, as for example
requirements referring to the corrosion resistance of the material shall also be specified together with their methods
of verification.
5.2.6 Freedom of surface and internal defects
The requirements for non destructive testing and visual inspection shall be specified where necessary to meet the
relevant requirements in EN 13445-2:2002, 4.1.3.
5.2.7 Dimensions, shape, mass and related tolerances
Dimensions, shape and mass and related tolerances shall be specified where necessary, preferably by reference to
an appropriate dimensional standard.
5.3 Testing and inspection
The following requirements on inspection and testing shall be specified:
a) the types of applicable inspection documents (see EN 10204);
b) the requirements to be verified (e.g. chemical composition, tensile properties);
c) the conditions applicable for specific inspection and testing namely:
 the composition and maximum size of the test unit (e.g. the maximum weight or number of products of the
same cast, heat treatment batch); and
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SIST EN 764-4:2003
EN 764-4:2002 (E)
 the number of sample products per test unit;
 the number of samples per sample product; and
 the number of test pieces per sample to be taken and tested;
 the location and direction of the test pieces in the product;
 where necessary, additional conditions for sampling and conditions for the preparation of the samples and
test pieces;
 the European Standards in which the test methods are described;
 the provisions for retesting;
d) any other necessary specification for testing and inspection.
5.4 Marking
The marking of the delivery units or products shall ensure traceability between these and the inspection docu-
ments.
For European standardized materials the marking shall fulfil the requirements of the relevant product standard.
For other materials the marking shall at least contain:
a) the material specification (reference, material designation);
b) the material manufacturers name or mark;
c) the stamp of the inspection representative, if applicable;
d) an identification which permits the correlation between the product or delivery unit and the relevant inspection
document.
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SIST EN 764-4:2003
EN 764-4:2002 (E)
Annex A
(normative)
Procedures for the establishment of European Approvals for pressure
equipment materials (EAM)
A.1 European Approvals of established materials
The following requirements shall apply for EAMs established by transformation of material specifications originally
covered in national standards for material for pressure equipment or in national technical material data sheets
approved by the body competent for such approvals. The following requirements shall apply:
a) the national material specification exists and is in force before the transformation commences;
b) the sampling and testing conditions of the EAM are equivalent to a European Material Standard;
c) the EAM shall be based on the requirements of the national specification;
d) the requirements specified in the national specification should be backed by statistical data;
NOTE For previous national specifications the original assessment reports may not be available.
e) the compliance with these requirements shall be checked in accordance with the procedure indicated in A.4;
f) the requirements of the appropriate product standard shall be met.
A.2 European Approvals for new materials
European Approvals for new materials are established in accordance with A.5. They might be limited to a number
of material manufacturers. A list of material manufacturer(s) shall be provided where appropriate.
A.3 Procedure for the transformation of existing national material specifications into
European Material Data Sheets
A.3.1 At request EAMs shall be issued by a Notified Body specifically designated for that task. An example of a
form for request is given in Table A.1.
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SIST EN 764-4:2003
EN 764-4:2002 (E)
Table A.1 — Necessary information for preparation of a European Material Data Sheet transposed from an
existing standard or national material specification
No Data required Actual data
1 Name and address of the applicant
2 Denomination/No of nationally approved material
specification
3 Date of first edition
4 Date of last edition
5 Material group
6 Material designation
7 Product form
8 Approved dimensions
9 Material manufacturing process
10 Comparable material specifications
11 Basis of the approval
 Appraisal no (test report no) and date of issue,
if applicable
 experience (production, manufacture, applica-
tion)
 other
12 Notified Body
The Notified Body shall verify the requirements of A.1. Where appropriate the detailed technical information
A.3.2
summarised in Table A.2 shall be considered. After consideration the Notified Body shall prepare a draft EMDS in
accordance with A.6. In order to ensure compliance of the specified material with the requirements of the applicable
product standard, draft EMDS may contain additional conditions to the original standard/specification.
Table A.2 — Detailed technical information for verifying the compliance of the nationally approved material
specification with requirements for a European material data sheet
No Type of data or indications required Data or indications
00 Reference data for the national material specification
02 Designation of nationally approved material specification
03 Date of first edition
04 Date of last edition
05 Material Group
06 Mat
...