EN 764-4:2002

SLOVENSKI STANDARD
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
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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.

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
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.
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.
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.
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
a
E modulus of elasticity N/mm
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
a
R
yield strength N/mm
e
a
R upper yield strength N/mm
eH
a
R lower yield strength N/mm
eL
a
R tensile strength N/mm
m
a
R creep rupture strength for t hours at T °C
N/mm
m/t/T
a
R tensile strength at temperature T
N/mm
m/T
a
R 0,2 % proof strength at temperature T N/mm
p0,2/T
a
R 0,2 % proof strength N/mm
p0,2
a
R 1,0 % proof strength N/mm
1,0
p
a
R 1,0 % proof strength at temperature T N/mm
p1,0/T
S original cross section area mm
t
time h
1-
alinear expansion coefficient K
estrain %
v Poisson's ratio —
a
1 N/mm = 1 MPa
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.
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."
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.
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
 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.
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.
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 Material designation
07 Product form
08 Approved dimensions
09 Type of manufacture
10 Deoxidisation
11 Delivery conditions of the material
No Type of data or indications required Data or indications
12 Range of application
20 Comparable material specifications
40 Verify the compliance with the pre-conditions
42 material specification existed prior to initiating work on the
relevant European material standard
43 the requirements are backed by statistical data
50 Verify the compliance with the minimum requirements of clause 5. Explain the reasons for non
compliance and the modification to be considered to achieve compliance
51 chemical composition
52 Tensile properties at room temperature
 Yield or proof strength;
 Tensile strength;
 Elongation after fracture;
 Reduction of area after rupture.
53 Tensile properties at elevated temperatures
54 Impact properties
56 Technological properties
57 Other properties
60 Comparison of the sampling and testing conditions between the national approved material
specification and the relevant European material standard
61 Type of applicable inspection documents
62 Chemical composition
(test unit)
63 tensile test
 location and direction of test piece,
 form of test specimens;
 number of test specimens.
No Type of data or indications required Data or indications
64 impact test
 location and direction of test piece;
 form of test specimens;
 number of test specimens.
65 technological tests
66 other tests
70 Reduced additional tests and investigation
80 References to earlier assessment reports or expert opinions and other sources
90 Other data or notes
Date: .
Name and address of Notified Body:.
Signature: .
A.3.3 The Notified Body shall issue the final European Material Data Sheet following the procedure described in
Article 11 of the PED.
A.4 First testing of the production of established materials
A.4.1 General
The first production of an established material not previously produced by a material manufacturer shall be subject
to first testing as defined in A.4.3.
Where a material manufacturer has already produced very similar materials and can put forward data regarding
chemical composition, material characteristics, manufacturing process and product forms, the data of this material
shall be used in fulfilling the requirements of A.4.3.
Where a material manufacturer applies only for an extension of the scope of an existing EAM and has experience
with that material the amount of testing as defined shall be reduced and justification given in the assessment report.
Where a material manufacturer has already produced and delivered the established material previously, and can
provide satisfactory information on this material no testing as required in A.4.3 is requested.
A.4.2 Responsibilities
The responsibility for the first testing and, unless otherwise agreed, for the assessment of the results of the relevant
tests is:
a) in the case of materials of the steel groups 1.1, 1.2 and 8.1 in accordance with CR ISO 15608:2000 with the
department of the material manufacturer competent for issuing certificates in accordance with EN 10204:1991,
type 3.1.B certificate;
b) in all other cases with the Notified Body.
A.4.3 Procedure for the first testing of established materials not previously produced
A.4.3.1 The first three to five casts shall be melted to represent the specified range of material composition
specified by the material manufacturer.
A.4.3.2 The number of samples required by the technical delivery conditions shall be doubled for the first three
to five casts, but not be greater than two samples per plate as rolled, coil, tube in manufactured length, forging or
casting.
A.4.3.3 Where two samples per sample product are taken they shall be from opposite ends of the product. In
all other respects the sampling conditions shall be the same as specified in the technical delivery condition.
A.4.3.4 For each sample a tensile test at room temperature and, where Charpy V-notch impact energy is
specified in the technical delivery condition, three Charpy V-notch impact tests shall be carried out.
Where the impact energy is specified for more than one temperature the test shall be carried out at the temperature
for which the value of 27 J for ferritic and 1,5 % to 5 % Ni-alloyed steel and 40 J for austenitic material is specified
or at the test temperature nearest to this energy level.
A.4.3.5 For materials with specified tensile properties at elevated temperatures these properties shall be
determined with reference to 5.2.4 c) for each cast melted in accordance with A.4.3.1 up to the defined maximum
test temperature.
A.4.4 Statistical methods
Where appropriate, the relevant data or test results shall be evaluated by the manufacturer according to common
statistical procedures.
A.5 First testing of the production of new materials
A.5.1 Requirements for the establishment of EAM for a new material
A.5.1.1 When a new material is applied for an EAM the Notified Body shall establish, that
a) the material is not covered in any other existing EAM;
b) the proposal fulfils the requirements in clause 5;
c) the material characteristics which are of importance for the intended processing and application of the material
are available and whether these are at a level which does necessitate special precautions during processing
and application, e.g.:
 cold and hot formability;
 weldability;
 hardening and tempering behaviour;
 ageing behaviour;
 fatigue strength;
 corrosion resistance;
d) the material characteristics necessary for the proposed EAM can be consistently fulfilled.
A.5.1.2 For the establishment of the EAM a test program shall be developed in co-operation between the
material manufacturer and the Notified Body to fulfil the requirements in A.5.1.1 c) and d). The type and extent of
testing shall consider the processing and use of the product forms as well as the expected minimum properties.
Annexes B to F may be used as guidelines to select the relevant tests to be included in the test program.
The test program shall involve 5 casts. The test program shall specify which tests shall be confirmed by the Notified
Body.
A.5.2 Requirements for inclusion of additional material manufacturers in an EAM that is limited
to certain manufacturers
If a material manufacturer applies to be approved for the manufacture of a material specified in an EAM the
requirements of A.5.1 shall be followed with the following exceptions:
 the test program shall be the one applied for the establishment of the original EAM. This program may be
reduced or modified if justified by experience with this material;
 unless considerable changes in the test program are intended A.5.1.2 does not apply.
NOTE A.5.2 to be reconsidered with respect to PED guidelines on pressure equipment materials, as soon as available.
A.6 Title scheme and structure of a European Material Data Sheet (EMDS) for materials
for Pressure Equipment
A European Material Data Sheet (EMDS) for materials for Pressure Equipment shall contain the applicable
elements given in the Table A.3 and the title scheme of that table.
Table A.3 — Title scheme and structure of a European Material Data Sheet (EMDS)
for materials for Pressure Equipment
European Material Data Sheet (EMDS) EMDS No. .
Logo Date of issue:
Title
......................................
1 Material designation
2 Product form
3 Dimensions
4 Scope (Range of application)
5 References
6 Requirements
6.1 Delivery conditions (heat treatment)
a
6.2 Type of manufacture (steelmaking process)
a
6.3 Deoxidisation
6.4 Chemical composition
Cast analysis
a
Product analysis
European Material Data Sheet (EMDS) EMDS No. .
Logo Date of issue:
Title
......................................
6.5 Mechanical and technological properties
Tensile properties (e.g. R , R , R , R , R ) and bend test at room
eH eL p0,2 p1,0 m
temperature
Tensile properties at elevated temperatures
Impact properties
Other tests e.g. hardness tests, ring tests
6.6 Surface treatment condition
6.7 Internal soundness
6.8 Other properties, if applicable (e.g. corrosion)
7 Testing and inspection
7.1 Types and content of inspection documents
7.2 Frequency of tests
7.3 Sampling and test piece preparation
7.4 Test procedures
Chemical composition
Tensile test at room temperature
Tensile test at elevated temperatures
Impact test
Visual and dimensional examination
a
Leak tightness test
Intercristalline corrosion resistance
Identification test
Non destructive testing
Other tests
7.5 Re-tests
8 Marking
9 Guidelines for processing
9.1 Cold and hot forming
9.2 Welding, thermal cutting
9.3 Post weld heat treatment
a
10 Design data
a
Other data
12 List of material manufacturers
..............................................................................................................
..............................................................................................................
13 EMDS prepared by
a
where applicable
Annex B
(normative)
Appraisal schedule for ferritic and martensitic steels
B.1 General
The purpose of this annex is to provide a list of properties and test procedures which may be relevant in the
characterisation of new ferritic and martensitic steels and the determination of material property requirements.
When assessing the material property requirements, for each specific material, the material properties to be
assessed for which parameters have to be specified shall be selected in accordance with A.5.1.1. The following
1)
requirements are valid for rolled or forged ferritic-perlitic steels, including normalised fine-grain steels , and
martensitic or bainitic air or liquid quenched and tempered steels and copper bearing age hardened steels.
B.2 Test procedures
B.2.1 The type of the testing depends on the processing and use of the product forms in question. Tests shall be
carried out in the normal delivery conditions unless otherwise specified.
The applicable test standards shall be indicated.
B.2.2 In the case of a simultaneous appraisal of a number of product forms or thicknesses, the samples to be
tested shall be selected, that they cover the scope proposed for appraisal and the required manufacturing
procedures. Endeavours shall be made to select as low a number of test samples as possible, covering the whole
size range, see Table B.1.
B.2.3 The appraisal of the product forms shall be performed with respect to the thickness for each product form
as given in Table B.1.
Table B.1 — Wall thickness for product forms
Dimensions in millimetres
thickness
Product form
I II III
Strip  4,5 to  12
<   4,5 >  12
Plate <  30 30  to  70 >  70
Tube <  30 30  to  70 >  70
Forging/rolled bar < 150 150  to 300 > 300
B.2.4 The products to be tested should be at the upper limit of the requested thickness range, i.e. not less than
80 % of the proposed maximum thickness.
B.2.5 The tests may be divided into those, which shall be conducted before the first delivery (basic testing) and
those, which shall be carried out during initial deliveries (subsequent testing).

1) Fine-grain steels are those unalloyed or low-alloyed steels with a grain size of 6 or finer in accordance with EUR 103-71
B.2.6 Testing shall generally be performed as follows:
Normally the tensile testing is performed over the full thickness for a product thickness e £ 30 mm. For a product
thickness e > 30 mm the thickness may be reduced to ‡ 30 mm retaining one rolled surface on the rectangular test
piece.
Circular test pieces are permissible but shall only be provided for a product thickness e > 30 mm. The specimen
diameter shall be at least 10 mm. For a product thickness e > 70 mm a circular test specimen taken from mid
thickness of the product shall be tested additionally.
For the impact tests the test specimens shall be taken near the surface for a product thickness e £ 40 mm. For a
product thickness e > 40 mm the location for the specimen shall be in e/4, for e > 70 mm additionally in e/2.
B.3 Basic testing
B.3.1 General
Basic testing shall be conducted by each material manufacturer on at least two casts, which should cover the
specified range of analysis and of the heat treatment.
B.3.2 Determination of the chemical composition
The cast analysis shall be given by the material manufacturer. The product analysis shall be carried out on samples
to determine all elements given by the material data sheet.
B.3.3 Tensile tests
B.3.3.1 Tensile tests at room temperature shall be carried out in accordance with EN 10002-1 to determine the
upper and lower yield strength (or should not yield strength be indicated, the 0,2 % proof strength) tensile strength,
elongation after fracture (A) and reduction of area.
Samples shall be tested in the longitudinal and transverse/tangential directions. The test results will indicate the
degree of directionality occurring in the properties of a product and the direction with inferior mechanical properties.
B.3.3.2 Trend curves up to 50 K above the maximum operating temperature in accordance with prEN 10134
shall be determined for steels for which the minimum values of elevated temperature proof strength are intended to
be specified.
B.3.4 Notched bar impact tests
Notched bar impact tests shall be carried out to determine the upper and lower shelf by a complete transition curve.
Impact energy temperature curves are required for both longitudinal and transverse/tangential direction (with
determination of the shear fracture percentage and the lateral expansion). For each curve tests shall be carried out
for six temperatures in accordance with EN 10045.
B.3.5 Technological tests
As far as for the new product specific technological properties need to be characterised, bend tests, flaring tests,
flanging tests, ring tensile tests, ring flattening
...