STD-BSI BS EN LDOSC-ENGL LSSS I Lb24bbS 0789LDO 776 S
BRITISH STANDARD
Heat resisting steels and
nickel alloys
The European Standard EN 100951999 has the status of a
British Standard
ICs 77.140.10
NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW
BS EN
10095:1999
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STD.BS1 BS EN L0095-ENGL L977 I 1624667 0769LOL b02 E
BS EN 10095:1999
direction of the Sector Amd. No. Date
Committee for Engineering, was
published under the authority of
the Standards Committee and
comes into effect on 15 July 1999
National foreword
Comnients
This British Standard is the English language version of EN 10095:1999. It
supersedes BS 1449-21983, which is withdrawn, and the requirements for heat
resisting steel 310s S31 detailed in BS 970-1 (Section 5):1996
The two steel specifications which were listed BS 1449-2 may be cross-referenced
with their equivalents in BS EN 10095 as follows:
Steels in BS 1449-2
309824 Cr Ni 23/14 X12CrNi23-13 1.4833
310S24 Cr Ni 24/20 XSCrNi25-2 1 1.4845
Nearest equivalent steel in BS EN 1095
The UK participation in its preparation was entrusted to Technical Committee
ISEBO, Stainless steels, which has the responsibili@ to:
- aid enquirers to understand the text;
- present to the responsible European committee any enquiries on the
- monitor related international and European developments and promulgate
interpretation, or proposals for change, and keep the UK interests informed;
them in the UK.
A list of organizations represented on this committee can be obtained on request to
its secrem.
Cross-references
The British Standards which implement international or European publications
referred to in this document may be found in the BSI Standards Catalogue under the
section entitled “International Standards Correspondence Index”, or by using the
“Find” faciìity of the BSI Standards Electronic Catalogue.
A British Standard does not purport to include ali the necessary provisions of a
contract Users of British Standards are responsible for their correct application.
Compliance with a British Standard does not of itself confer immunity
from legal obligations.
Summary of pages
This document comprises a front cover, an inside front cover, the EN title page,
pages 2 to 26, an inside back cover and a back cover.
The BSI copyright notice displayed throughout this document indicates when this
document was last issued
O BSI 07-1999 1 I
ISBN O 580 32358 7
Copyright British Standards Institution
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STD.BS1 BS EN 30095-ENGL 3999 I Lb24669 0789302 549
EUROPEAN SIWlXRD
NORME EUROPÉENNE
EUROP- NOW
EN 10095
March 1999
ICs 77.120.40; 77.140.20
English version
Heat resist;ing steels and nickel alloys
Aciers et alliages de nickel réfmctaires Hitzebeständige Stähle und Nickellegierungen
This European Standard was approved by CEN on 1 March 1999.
CEN memberc are bound to comply with the CENKENELEC Internal Regulations
which stipulaî~ the conditions for giving this European Standard the status of a
national standard without any alteration. Up-to-date lists and bibliographieal
references concerning such national standards may be obtahed on application to
the Central Secretariat or to any CEN member.
"his European Standard exists in three official versions (English, French, German).
A version in any other language made by tsanslation under the responsibility of a
CEN member into its own language and notified to the Central Secretariat 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, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and
United Kingdom.
European Committee for Standardization
Comité Européen de Normaliiation
Europäisches Komitee für Normung
Centrd Secretariat: rue de Stassart 36, B-1060 Brussels
O 1999 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national
Members.
Ref. No. EN lo0951999 E
Copyright British Standards Institution
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Page 2
EN 10096:1999
Foreword
STDeBSI BS EN L0095-ENGL 2999 D Lb24bh9 0789203 485
This European Standard has been prepared by
Tkchnicai Committee ECISSRC 23, Steels for heat
treatment, alloy steels and free-cutting steels -
Qualities and dimensions, 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
1999, and conflicting national standards shall be
withdrawn at the latest by September 1999.
This European Standard has been prepared under a
mandate given to CEN by the European Commission
and the European Free W e Association. This
European Standard is considered to be a supporting
standard to those application and product standards
which in themselves support an essentiai safety
requirement of a New Approach Directive and which
make reference to this European Standard.
According to the CENKENELEC Internai Regulations,
the nationai standards organizations of the following
countries are bound to implement this European
Standad Austria, Belgium, Czech Republic, Denmark,
Finland, France, Germany, Greece, Iceland, Ireland,
Italy, Luxembourg, Netherlands, Norway, Portugal,
Spain, Sweden, Switzerland and the United Kingdom.
NOTE The clauses marked with a point ( 0 ) contain information
relating to agreements which are to be made at the time of
ordering. The clauses marked with two points 0 ) contain
information relating to agreements which may be made at t,he
time of ordering.
Contents
Foreword
1 Scope
2
3
4
4.1
4.2
5
5.1
5.2
6
6.1
6.2
7
7.1
7.2
7.3
7.4
7.5
7.6
Normative references
Deñnitions
Classification and designation
Classification
Designation
Information to be supplied by the
purchaser
Mandatory information
Options
Manufacturing process
General
Delivery condition
Requirements
General
Chemical composition
Mechanical properties
Surface quality
Dimensions and tolerances on
dimensions
Calculation of mass and tolerances on
mass
8 Inspection and testing
8.1 General
8.2
8.3 Specific inspection and testing
8.4 Test methods
8.5 Retest
9 Marking
Annex A (informative) Applicable
dimensional standards
Annex B (informative) Technical
information on heat resisting steels and
nickel alloys
Annex C (informative) Bibliography
Annex D (informative) Grades from
EN 100881 and prEN 100287 used as heat
resisting steels
Types and contents of inspection
documents
Page
2
3
3
3
4
4
4
4
4
4
4
4
4
5
5
5
5
5
5
5
5
5
5
6
6
6
6
20
20
26
26
O BSI 07-1999 Copyright British Standards Institution
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STD-BSI BS EN LOOCIS-ENGL 1979 Lb24b69 D789L04 311 II
Page 3
EN 10096:1999
1 Scope
1.1 This European Standard covers the grades of
wrought steels and nickel alloys listed in Tables 1 to 3
which are usually employed for products, for which
the main requirement is their resistance to the effects
of hot gases and products of combustion at
temperatures above 550 O C .
1.2 This EN 10095 specifies the technical delivery
conditions for semi-fínished products, for hot or cold
rolled sheellplate and stnp, hot or cold formed bars,
rods and sections of heat resisting steels and nickel
alloys.
1.3 Some grades from EN 100881 and prEN 100287
may be used as heat resisting steels. These grades are
listed in the informative annex D.
1.4 The general technical delivery conditions specified
in EN 10021 apply in addition to the specific~ons of
this European Standard, unless otherwise specified in
this standard.
1.6 This European Standard does not apply to
components manufactured by further processing the
product forms listed in 1.2 with quality characteristics
altered as a result of such further processing.
1.6 This European Standard is not intended for
pressure purposes.
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 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.
EN 10002-1, Metauic matemals - Tmüe testing -
Part 1: Method of testing (at ambient temperature).
EN 10002-5, MetaUzC materials - Tmüe testing -
Part 5: Method of test at elevated temperature.
EN 10003-1, MetuüzC mutenals - Hardness test -
Brineu - Part 1: Test method.
EN 10021, Gt?neral technical delivery requirements for
steel and iron products.
EN 10027-1, Designation s y s r m fin- steels -
Part 1: Steel m m s , principal symbols.
EN 10027-2, Designatima systems for steels -
Part 2: Nu&& system.
EN 10052, Vocabulary of heat treatment temzs for
fmus products.
EN 10079, Definition of steel products.
EN 10163-2, Delivevy requiremmts for su?$äce
condition of hot rolled steel plates, uvidejlats and
sections - Part 2: Plate and wide f i t s .
EN 10204, MetauiC products - T3~~e.s of inspection
documents.
EN 10221, Su?fme qwllzty classes fw hot-mW bars
and rods - Technical delivery conditions.
EN IS0 377, Steel and steel pmducts - Location and
preparation of samples and test pieces for mechaniCCcl
testing.
EN IS0 9001, Quality systems - Model for quality
assurance in àesigddmebprnmt, production,
imtaUa,tion and s a w .
EN IS0 9002, Quality systems - Model for quality
assurance in production, installation and s&q.
EU 168-861), Iron and steel products - Inspection
documents - Contents.
IS0 14284, Steel and iron - Sampling and
prepa,rati.n of samples for the &termination of
chemical composition.
3 Definitions
For the purpose of this European Standard, the
following defmition applies in addition to the
definitions given in EN 10021, EN 10052, EN 10079,
EN IS0 377 and IS0 14284.
3.1
heat-resistance
property of materials that are used at above 550 "C (for
steels: wustite point) due to their excellent resistance
to the effects of hot gases and products of combustion
as weil as their resistance to the influence of molten
salts and molten metals but also showing good
mechanical properties during short and long-tem
stressing
** It may be agreed at the time of ordering, until this EURONORM has been adopted as a European Standard, that either this
Euronorm or a corresponding national standard should be applied.
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STD.BSI BS EN 10095-ENGL 1999 S Lb2Ybb9 0769l105 255
Page 4
EN 10095:1999
4 Classification and designation
4.1 Classification
Materiah covered in this European Standard are
classied according to their stnicture into:
- ferritic steels;
- austenitic-ferritic steels;
- austenitic steels; and
- austenitic nickel alloys.
4.2 Designation
The names and numbers of the steels (see Table 1
and 2) were formed in accordance with EN 10027-1
and EN 10027-2 respectively
NOTE Explanation on the designation of nickel alloys
(see Table 3).
- name: The preceding chemical symbols indicate the main
alloy elements and the figure immediately following indicates
the average content of these alloys subsequently followed by
the symbol for the other added important alloy elements.
- material number: The stnicture is set out according to
EN 10027-2 with the number 2 for the material group number.
This material group comprises chemically resistant and high
temperature or heat resistant nickel and cobalt alloys.
5 Information to be supplied by the
purchaser
5.1 Mandatory information
The following information s h d be supplied by the
purchaser at the time of enquiry and order:
a) the quantity to be delivered
b) the designation of the product form (e.g. bar or
rod, stsip or sheet);
c ) where an appropriate dimensional standard is
available (see annex A) the number of the standard
and the indications required by this, also the
nominal dunensions and tolerances;
d) the type of materid (steel or nickel alloy);
e) the number of this European Standard
(EN 10095);
f) the name or number of the steel grade or nickel
alloy (see 4.2);
g) if for the relevant grade in the table more than
one treatment condition for the mechanical
properties is covered, the symbol for the desired
heat treatment condition or cold worked condition;
h) the desired process route (see symbols in Tables 7
and 8).
EXAMPLE
10 t rounds of a steel grade with the name
XlONiCrAlTi32-21 and the number 1.4876 as specified
in EN 10095 of 50 mm b e t e r , dimensional tolerances
as specified in EURONORM 60, in process route 1D.
10 t rounds EURONORM 60 - 50
steel EN 10095 - XlONiCrAi'iï32-21+ 1D
10 t rounds EURONORM 60 - 50
steel EN 10095 - 1.4876 + 1D
or
5.2 ** Options
A number of options are specified in this European
Standard and listed below. If the purchaser does not
indicate his wish to implement one of these options,
the supplier shall supply in accordance with the basis
specification of this European Standard (see 5.1):
a) any requirement concerning a special melting or
forming process (see 6.1);
b) any requirement relating to surface quality
(see 7.4);
c) any requirement concerning the issue of an
inspection document (see 8.2);
d) any requirement concerning the method of
analysis to determine the product analysis
(see 8.4.1);
e) any requirement concerning special marking of
the products (see 9.2, 9.3 and Table 10).
6 Manufacturing process
6.1 ** General
Unless a special melting or forming process is agreed
when ordering, the production process for steels and
alloys conforming to this European Standard shall be
at the discretion of the manufacturer.
6.2 Delivery condition
The products shall be supplied in the delivery
condition agreed in the order by reference to the
process route given in Tables 7 and 8 and to the
treatment conditions given in Table B.l.
O BSI 07-1999
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STD.BSI BS EN 30095-ENGL 1999 II 1624669 0789306 194
Page 6
EN 100951999
7 Requirements
7.1 General
The supplier shall operate and certify a quality system
in accordance with EN IS0 90022).
7.2 Chemical composition
7.2.1 The chemical composition requirements given in
Tables 1 to 3 apply with respect to the cast analysis.
7.2.2 The product analysis may deviate íi-om the
limiting values for the cast andysis given in Tables 1
to 3 by the values listed in làbles 4 and 5.
7.3 Mechanical properties
The mechanical properties at room tempemime as
specified in Tabe 6 apply for each specified heat
treatment condition. This does not apply to the process
route 1U (hot rolied, not heat treated, not descaled)
and to semi-ñnished products.
If by agreement at the time of ordering, the products
are to be supplied in a non-heat-treated condition, the
mechanical properties specified in Table 6 shall be
obtainable from reference test pieces which have
received the appropriate heat treatment (simulated
heat treatment).
7.4 Surface quality
Slight surface imperfections, inherent in the production
process, are permitted
*o If more exact requirements for the surface quality
are necessary, these shall be agreed at the time of
enquiry and order.
When products are delivered in coil form, the degree
and extent of such imperfections may be expected to
be greater due to the impracticalty of removing short
lengths of coil. For hot rolled quarto-plates, the
specification in EN 10163-2 class A3 applies unless
otherwise stated.
For long products, where appropriate, the requirements
shall be on the basis of EN 10221.
7.5 Dimensions and tolerances on dimensions
The dimensions and the tolerances on dimensions are
to be agreed at the îhne of enquiry and order, as far as
possible with reference to the dimensional standards
listed in a m e x k
7.6 Calculation of mass and tolerances on mass
7.6.1 When calculating the nominal mass from the
nominal dimensions the values given in Table B.5 shall
be used as a basis for the density of the steel
concerned.
7.6.2 If the tolerances on mass are not specified in
the dimensional standard listed in annex A, they shall
be agreed at the time of enquiry and order.
8 Inspection and testing
8.1 General
The manufacturer shall carry out appropriate process
control, inspection and testing to assure himself that
the delivery complies with the requirements of the
order.
This includes the following:
- a suitable frequency of verification of the
dimensions of the products;
- an adequate intensity of visuaI examination of the
surface quality of the products;
- an appropriate frequency and type of test to
ensure that the correct grade is used.
The nature and frequency of these verifications,
examinations and tests is determined by the
manufacturer in the light of the degree of consistency
that has been determined by the evidence of the
quality system. in view of this, verifications by specific
tests for these requirements are not necessary unless
otherwise agreed.
8.2 *o Types and contents of inspection
documents
8.2.1 At the time of ordering the issue of one of the
inspection documents in accordance with EN 10204
may be agreed for each deliveW.
8.2.2 If it is agreed to issue a test report 2.2 in
accordance with EN 10204 it shall indicate the
following information:
a) the information groups A, B and Z of EU 168,
b) the results of the cast analycis in accordance with
the code numbers C71 to C92 in EU 168.
8.2.3 If the issuing of an inspection
certificate 3.1.A, 3.1.B or 3.1.C according to EN 10204
or of an inspection report 3.2 according to EN 10204
has been ag