SIST EN 10088-1:2005

SLOVENSKI STANDARD
SIST EN 10088-1:2005
01-september-2005
1DGRPHãþD
SIST EN 10088-1:1997
Nerjavna jekla - 1. del: Seznam nerjavnih jekel
Stainless steels - Part 1: List of stainless steels
Nichtrostende Stähle - Teil 1: Verzeichnis der nichtrostenden Stähle
Aciers inoxydables - Partie 1: Liste des aciers inoxydables
Ta slovenski standard je istoveten z: EN 10088-1:2005
ICS:
77.140.20 Visokokakovostna jekla Stainless steels
SIST EN 10088-1:2005 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 10088-1:2005

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SIST EN 10088-1:2005



EUROPEAN STANDARD
EN 10088-1

NORME EUROPÉENNE

EUROPÄISCHE NORM
June 2005
ICS 77.140.20 Supersedes EN 10088-1:1995
English version
Stainless steels - Part 1: List of stainless steels
Aciers inoxydables - Partie 1: Liste des aciers inoxydables Nichtrostende Stähle - Teil 1: Verzeichnis der
nichtrostenden Stähle
This European Standard was approved by CEN on 14 April 2005.

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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.

CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, 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
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 10088-1:2005: E
worldwide for CEN national Members.

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SIST EN 10088-1:2005
EN 10088-1:2005 (E)
Contents Page
Foreword.3
1 Scope .4
2 Normative references .4
3 Terms and definitions .5
4 Chemical composition .5
Annex A (informative) Guidance data on some physical properties .17
Annex B (informative) Classification of stainless steel grades.26
Annex C (informative) Empirical formulae for steel grade classification by microstructure .30
Annex D (informative) Matrix to show which steels are included in which standards .31
Annex E (informative) Chemical composition of nickel and cobalt alloys listed in EN 10095, EN
10269 and EN 10302 .35
Bibliography .37

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SIST EN 10088-1:2005
EN 10088-1:2005 (E)
Foreword
This European Standard (EN 10088-1:2005) has been prepared by Technical Committee ECISS/TC 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 December 2005, and conflicting national standards shall be withdrawn
at the latest by December 2005.
This document supersedes EN 10088-1:1995.
EN 10088, under the general title "Stainless steels", consists of the following parts:
 Part 1: List of stainless steels (including a table of European Standards, in which these stainless steels
are further specified, see Annex D),
 Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general
purposes,
 Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright
products of corrosion resisting steels for general purposes.
The European Organisation for Standardisation (CEN) draws attention to the fact that it is claimed that
compliance with this document may involve the use of patents applied to five steels grades
CEN takes no position concerning the evidence, validity and scope of these patent rights.
The holder of these patent rights has assured CEN that they are willing to negotiate licences, under
reasonable and non-discriminatory terms and conditions, with applicants throughout the world. In this respect,
the statements of the holders of these patent rights are registered with CEN. Information may be obtained
from:
Grades 1.4362, 1.4410 and 1.4477
Sandvik AB
SE-811 81 SANDVIKEN
Sweden
Grades 1.4652, 1.4854
Outokumpu Stainless AB
SE-77480 AVESTA
Sweden
Attention is drawn to the possibility that some of the elements within this document may be the subject of
patent rights other than those indicated above. CEN shall not be responsible for identifying any or all such
patent rights.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland
and United Kingdom.
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SIST EN 10088-1:2005
EN 10088-1:2005 (E)
1 Scope
This European Standard lists the chemical composition of stainless steels, which are subdivided in
accordance with their main properties into corrosion resisting steels, heat resisting steels and creep resisting
steels and specified in the European Standards given in Table 1.
Table 1 — Overview of material standards for stainless steels
Stainless steels
Corrosion resisting steels Heat resisting steels Creep resisting steels
EN 10028-7 EN 10028-7
EN 10088-2
EN 10088-3
EN 10095
EN 10151
EN 10216-5 EN 10216-5
EN 10217-7
EN 10222-5 EN 10222-5
EN 10250-4
EN 10263-5
EN 10264-4 EN 10264-4
EN 10269 EN 10269
EN 10270-3
EN 10272

EN 10296-2

EN 10297-2
 EN 10302
EN 10312
Reference data on some physical properties are given in Tables A.1 to A.8.
NOTE 1 A matrix that shows which steels are included in which standard is given in Annex D.
NOTE 2 Valve steels are specified in EN 10090.
NOTE 3 Steel castings are specified in various European Standards (see Bibliography).
NOTE 4 Tool steels are specified in EN ISO 4957.
NOTE 5 Welding consumables are specified in various European Standards (see Bibliography).

2 Normative references
The following referenced documents are indispensable for the application 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 10079:1992, Definition of steel products
EN 10020:2000, Definition and classification of grades of steel

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SIST EN 10088-1:2005
EN 10088-1:2005 (E)
3 Terms and definitions
For the purposes of this European Standard, the terms and definitions for the product forms given in EN
10079:1992 and the following apply.
3.1
stainless steels
stainless steels are steels with at least 10,5 % of chromium and maximum 1,2 % of carbon
[see EN 10020:2000, definition 3.2.2]
They are further subdivided in accordance with their main property into corrosion resisting steels, heat
resisting steels and creep resisting steels
NOTE One steel in Table 6 and five in Table 8 contain less Chromium than the minimum defined for stainless steels,
but are included in the heat-resisting and creep-resisting steels standards respectively, because they form a part of these
two families of steels.
4 Chemical composition
The chemical composition of stainless steels is given
 in Table 2 for ferritic corrosion resisting steels;
 in Table 3 for martensitic and precipitation hardening corrosion resisting steels;
 in Table 4 for austenitic corrosion resisting steels;
 in Table 5 for austenitic-ferritic corrosion resisting steels;
 in Table 6 for ferritic heat resisting steels;
 in Table 7 for austenitic and austenitic-ferritic heat resisting steels;
 in Table 8 for martensitic creep resisting steels;
 in Table 9 for austenitic creep resisting steels.
NOTE The chemical composition of nickel and cobalt alloys listed in EN 10095, EN 10269 and EN 10302 is given in
Tables E.1 and E.2.
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SIST EN 10088-1:2005
EN 10088-1:2005 (E)
a
Table 2 — Chemical composition (cast analysis) of ferritic corrosion resisting steels
Steel designation % by mass
C Si Mn P S N
Name Number Cr Mo Nb Ni Ti Others
max. max. max. max. max.
b
X2CrNi12 1.4003 0,030 1,00 1,50 0,040 ≤ 0,015 0,030 10,5 to 12,5 - - 0,30 to 1,00 - -
X2CrTi12 1.4512 0,030 1,00 1,00 0,040 ≤ 0,015 - 10,5 to 12,5 - - - [6 x (C+N)] to 0,65 -
X6CrNiTi12 1.4516 0,08 0,70 1,50 0,040 ≤ 0,015 - 10,5 to 12,5 - - 0,50 to 1,50 0,05 to 0,35 -
b
X6Cr13 1.4000 0,08 1,00 1,00 0,040 ≤ 0,015 - 12,0 to 14,0 - - - - -
b
X6CrAl13 1.4002 0,08 1,00 1,00 0,040 ≤ 0,015 - 12,0 to 14,0 - - - - Al : 0,10 to 0,30
X2CrTi17 1.4520 0,025 0,50 0,50 0,040 ≤ 0,015 0,015 16,0 to 18,0 - - - 0,30 to 0,60 -
b
X6Cr17 1.4016 0,08 1,00 1,00 0,040 ≤ 0,015 - 16,0 to 18,0 - - - - -
b c
X3CrTi17 1.4510 0,05 1,00 1,00 0,040 ≤ 0,015 - 16,0 to 18,0 - - - [4 x (C+N) + 0,15] to 0,80 -
X1CrNb15 1.4595 0,020 1,00 1,00 0,025 ≤ 0,015 0,020 14,0 to 16,0 - 0,20 to 0,60 - - -
b
X3CrNb17 1.4511 0,05 1,00 1,00 0,040 ≤ 0,015 - 16,0 to 18,0 - 12 x C to 1,00 - - -
b
X6CrMo17-1 1.4113 0,08 1,00 1,00 0,040 ≤ 0,015 - 16,0 to 18,0 0,90 to 1,40 - - - -
X6CrMoS17 1.4105 0,08 1,50 1,50 0,040 0,15 to 0,35 - 16,0 to 18,0 0,20 to 0,60 - - -
X2CrMoTi17-1 1.4513 0,025 1,00 1,00 0,040 ≤ 0,015 0,020 16,0 to 18,0 0,80 to 1,40 - - 0,30 to 0,60 -
c
X2CrMoTi18-2 1.4521 0,025 1,00 1,00 0,040 ≤ 0,015 0,030 17,0 to 20,0 1,80 to 2,50 - - [4 x (C+N) + 0,15] to 0,80 -
X2CrMoTiS18-2 1.4523 0,030 1,00 0,50 0,040 0,15 to 0,35 - 17,5 to 19,0 2,00 to 2,50 - - 0,30 to 0,80 (C+N) ≤ 0,040
X6CrNi17-1 1.4017 0,08 1,00 1,00 0,040 ≤ 0,015 - 16,0 to 18,0 - - 1,20 to 1,60 - -
X5CrNiMoTi15-2 1.4589 0,08 1,00 1,00 0,040 ≤ 0,015 - 13,5 to 15,5 0,20 to 1,20 - 1,00 to 2,50 0,30 to 0,50 -
X6CrMoNb17-1 1.4526 0,08 1,00 1,00 0,040 ≤ 0,015 0,040 16,0 to 18,0 0,80 to 1,40 [7x(C+N)+0,10] to 1,00 - - -
X2CrNbZr17 1.4590 0,030 1,00 1,00 0,040 ≤ 0,015 - 16,0 to 17,5 - 0,35 to 0,55 - - Zr ≥ 7x(C+N)+0,15
X2CrTiNb18 1.4509 0,030 1,00 1,00 0,040 ≤ 0,015 - 17,5 to 18,5 - [3 x C + 0,30] to 1,00 - 0,10 to 0,60 -
c
X2CrMoTi29-4 1.4592 0,025 1,00 1,00 0,030 ≤ 0,010 0,045 28,0 to 30,0 3,50 to 4,50 - - [4 x (C+N) + 0,15] to 0,80 -
a
Elements not listed in this table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast. All appropriate precautions are to be taken to avoid the addition
of such elements from scrap and other materials used in production which would impair mechanical properties and the suitability of the steel.
b
For bars, rods, wire, sections, bright products and the relevant semi-finished products, a maximum content of 0,030 % S applies. Particular ranges of sulphur content may provide improvement of particular
properties. For machinability a controlled sulphur content of 0,015 % to 0,030 % is recommended and permitted. For weldability, a controlled sulphur content of 0,008 % to 0,030 % is recommended and
permitted. For polishability, a controlled sulphur content of 0,015 % max. is recommended.
c
The stabilisation may be made by use of titanium or niobium or zirconium. According to the atomic mass of these elements and the content of carbon and nitrogen, the equivalence shall be the following:
Nb (% by mass) ≡ Zr (% by mass) ≡ 7/4 Ti (% by mass).



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SIST EN 10088-1:2005
EN 10088-1:2005 (E)
a
Table 3 — Chemical composition (cast analysis) of martensitic and precipitation hardening corrosion resisting steels
Steel designation % by mass
c
Name Number C Si Mn P S Cr Cu Mo Nb Ni Others
max. max.
b
X12Cr13 1.4006 0,08 to 0,15 1,00 ≤ 1,50 0,040 ≤ 0,015 11,5 to 13,5 - - - ≤ 0,75 -
X12CrS13 1.4005 0,08 to 0,15 1,00 ≤ 1,50 0,040 0,15 to 0,35 12,0 to 14,0 - ≤0,60 - - -
b
X15Cr13 1.4024 0,12 to 0,17 1,00 ≤ 1,00 0,040 ≤ 0,015 12,0 to 14,0 - - - - -
b
X20Cr13 1.4021 0,16 to 0,25 1,00 ≤ 1,50 0,040 ≤ 0,015 12,0 to 14,0 - - - - -
b
X30Cr13 1.4028 0,26 to 0,35 1,00 ≤ 1,50 0,040 ≤ 0,015 12,0 to 14,0 - - - - -
X29CrS13 1.4029 0,25 to 0,32 1,00 ≤ 1,50 0,040 0,15 to 0,25 12,0 to 13,5 - ≤ 0,60 - - -
b
X39Cr13 1.4031 0,36 to 0,42 1,00 ≤ 1,00 0,040 ≤ 0,015 12,5 to 14,5 - - - - -
b
X46Cr13 1.4034 0,43 to 0,50 1,00 ≤ 1,00 0,040 ≤ 0,015 12,5 to 14,5 - - - - -
X46CrS13 1.4035 0,43 to 0,50 1,00 ≤ 2,00 0,040 0,15 to 0,35 12,5 to 14,0 - - - - -
X38CrMo14 1.4419 0,36 to 0,42 1,00 ≤ 1,00 0,040 ≤ 0,015 13,0 to 14,5 - 0,60 to 1,00 - - -
b
X55CrMo14 1.4110 0,48 to 0,60 1,00 ≤ 1,00 0,040 ≤ 0,015 13,0 to 15,0 - 0,50 to 0,80 - - V: ≤ 0,15
b
X50CrMoV15 1.4116 0,45 to 0,55 1,00 ≤ 1,00 0,040 ≤ 0,015 14,0 to 15,0 - 0,50 to 0,80 - - V: 0,10 to 0,20
b
X70CrMo15 1.4109 0,60 to 0,75 0,70 ≤ 1,00 0,040 ≤ 0,015 14,0 to 16,0 - 0,40 to 0,80 - - -
V ≤ 1,50
X40CrMoVN16-2 1.4123 0,35 to 0,50 1,00 ≤ 1,00 0,040 ≤ 0,015 14,0 to 16,0 - 1,00 to 2,50 - ≤ 0,50
N: 0,10 to 0,30
X14CrMoS17 1.4104 0,10 to 0,17 1,00 ≤ 1,50 0,040 0,15 to 0,35 15,5 to 17,5 - 0,20 to 0,60 - - -
b
X39CrMo17-1 1.4122 0,33 to 0,45 1,00 ≤ 1,50 0,040 ≤ 0,015 15,5 to 17,5 - 0,80 to 1,30 - ≤ 1,00 -
b
X105CrMo17 1.4125 0,95 to 1,20 1,00 ≤ 1,00 0,040 ≤ 0,015 16,0 to 18,0 - 0,40 to 0,80 - - -
b
X90CrMoV18 1.4112 0,85 to 0,95 1,00 ≤ 1,00 0,040 ≤ 0,015 17,0 to 19,0 - 0,90 to 1,30 - - V: 0,07 to 0,12
b
X17CrNi16-2 1.4057 0,12 to 0,22 1,00 ≤ 1,50 0,040 ≤ 0,015 15,0 to 17,0 - - - 1,50 to 2,50 -
X1CrNiMoCu12-5-2 1.4422 ≤ 0,020 0,50 ≤ 2,00 0,040 ≤ 0,003 11,0 to 13,0 0,20 to 0,80 1,30 to 1,80 - 4,0 to 5, 0 N: ≤ 0,020
X1CrNiMoCu12-7-3 1.4423 ≤ 0,020 0,50 ≤ 2,00 0,040 ≤ 0,003 11,0 to 13,0 0,20 to 0,80 2,30 to 2,80 - 6,0 to 7, 0 N: ≤ 0,020
Ti: ≤ 0,010
X2CrNiMoV13-5-2 1.4415 ≤ 0,030 0,50 ≤ 0,50 0,040 ≤ 0,015 11,5 to 13,5 - 1,50 to 2,50 - 4,5 to 6,5
V: 0,10 to 0,50
X3CrNiMo13-4 1.4313 ≤ 0,05 0,70 ≤ 1,50 0,040 ≤ 0,015 12,0 to 14,0 - 0,30 to 0,70 - 3,5 to 4,5 N: ≥ 0,020
b
X4CrNiMo16-5-1 1.4418 ≤ 0,06 0,70 ≤ 1,50 0,040 ≤ 0,015 15,0 to 17,0 - 0,80 to 1,50 - 4,0 to 6,0 N: ≥ 0,020
Al: 0,60 to 0,80
X1CrNiMoAlTi12-9-2 1.4530 ≤ 0,015 0,10 ≤ 0,10 0,010 ≤ 0,005 11,5 to 12,5 - 1,85 to 2,15 - 8,5 to 9,5 Ti: 0,28 to 0,37
N: ≤ 0,010
Al: 0,80 to 1,10
X1CrNiMoAlTi12-10-2 1.4596 ≤ 0,015 0,10 ≤ 0,10 0,010 ≤ 0,005 11,5 to 12,5 - 1,85 to 2,15 - 9,2 to 10,2 Ti: 0,28 to 0,40
N: ≤ 0,020
b
X5CrNiCuNb16-4 1.4542 ≤ 0,07 0,70 ≤ 1,50 0,040 ≤ 0,015 15,0 to 17,0 3,0 to 5,0 ≤ 0,60 5xC to 0,45 3,0 to 5,0 -


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SIST EN 10088-1:2005
EN 10088-1:2005 (E)
Table 3 (concluded)
Steel designation % by mass
c
Name Number C Si Mn P S Cr Cu Mo Nb Ni Others
max. max.
d
X7CrNiAl17-7 1.4568 ≤ 0,09 0,70 ≤ 1,00 0,040 ≤ 0,015 16,0 to 18,0 - - - 6,5 to 7,8 Al: 0,70 to 1,50
X5CrNiMoCuNb14-5 1.4594 ≤ 0,07 0,70 ≤ 1,00 0,040 ≤ 0,015 13,0 to 15,0 1,20 to 2,00 1,20 to 2,00 0,15 to 0,60 5,0 to 6,0 -
B: 0,001 0 to 0,010
1,00 to Al: ≤ 0,35
X5NiCrTiMoVB25-15-2 1.4606 ≤ 0,08 1,00 0,025 ≤ 0,015 13,0 to 16,0 - 1,00 to 1,50 - 24,0 to 27,0
2,00 Ti: 1,90 to 2,30
V: 0,10 to 0,50
a
Elements not quoted in this table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast. All appropriate precautions are to be taken to
avoid the addition of such elements from scrap and other materials used in production which would impair mechanical properties and the suitability of the steel.
b
For bars, rods, wire, sections, bright products and the relevant semi-finished products, a maximum content of 0,030 % S applies. Particular ranges of sulphur content may provide improvement of
particular properties. For machinability a controlled sulphur content of 0,015 % to 0,030 % is recommended and permitted. For weldability, a controlled sulphur content of 0,008 % to 0,030 % is
recommended and permitted. For polishability, a controlled sulphur content of 0,015 % max. is recommended.
c
Tighter carbon ranges may be agreed at the time of enquiry and order.
d
For better cold deformability, the upper limit may be increased to 8,3 %.

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SIST EN 10088-1:2005
EN 10088-1:2005 (E)

a
Table 4 — Chemical composition (cast analysis) of austenitic corrosion resisting steels
Steel designation % by mass

c
Name Number C Si Mn P S N Cr Cu Mo Nb Ni Others
max.
X5CrNi17-7 1.4319 ≤ 0,07 ≤ 1,00 ≤ 2,00 0,045 ≤ 0,030 ≤ 0,11 16,0 to 18,0 - - - 6,0 to 8,0 -
X10CrNi18-8 1.4310 0,05 to 0,15 ≤ 2,00 ≤ 2,00 0,045 ≤ 0,015 ≤ 0,11 16,0 to 19,0 - ≤ 0,80 - 6,0 to 9,5 -
X9CrNi18-9 1.4325 0,03 to 0,15 ≤ 1,00 ≤ 2,00 0,045 ≤ 0,030 ≤ 0,11 17,0 to 19,0 - - - 8,0 to 10,0 -
X2CrNiN18-7 1.4318 ≤ 0,030 ≤ 1,00 ≤ 2,00 0,045 ≤ 0,015 0,10 to 0,20 16,5 to 18,5 - - - 6,0 to 8,0 -
b
X2CrNi18-9 1.4307 ≤ 0,030 ≤ 1,00 ≤ 2,00 0,045 ≤ 0,015 ≤ 0,11 17,5 to 19,5 - - - 8,0 to 10,5 -
b d
X2CrNi19-11 1.4306 ≤ 0,030 ≤ 1,00 ≤ 2,00 0,045 ≤ 0,015 ≤ 0,11 18,0 to 20,0 - - - 10,0 to 12,0 -
X5CrNiN19-9 1.4315 ≤ 0,06 ≤ 1,00 ≤ 2,00 0,045 ≤ 0,015 0,12 to 0,22 18,0 to 20,0 - - - 8,0 to 11,0 -
b
X2CrNiN18-10 1.4311 ≤ 0,030 ≤ 1,00 ≤ 2,00 0,045 ≤ 0,015 0,12 to 0,22 17,5 to 19,5 - - - 8,5 to 11,5 -
b
X5CrNi18-10 1.4301 ≤ 0,07 ≤ 1,00 ≤ 2,00 0,045 ≤ 0,015 ≤ 0,11 17,5 to 19,5 - - - 8,0 to 10,5 -
e e
X8CrNiS18-9 1.4305 ≤ 0,10 ≤ 1,00 ≤ 2,00 0,045 0,15 to 0,35 ≤ 0,11 17,0 to 19,0 ≤ 1,00 - - 8,0 to 10,0 -
b d
X6CrNiTi18-10 1.4541 ≤ 0,08 ≤ 1,00 ≤ 2,00 0,045 ≤ 0,015 - 17,0 to 19,0 - - 9,0 to 12,0 Ti:5xC to 0,70
d
X6CrNiNb18-10 1.4550 ≤ 0,08 ≤ 1,00 ≤ 2,00 0,045 ≤ 0,015 - 17,0 to 19,0 - - 10xC to 1,00 9,0 to 12,0 -
b
X4CrNi18-12 1.4303 ≤ 0,06 ≤ 1,00 ≤ 2,00 0,045 ≤ 0,015 ≤ 0,11 17,0 to 19,0 - - - 11,0 to 13,0 -
X1CrNi25-21 1.4335 ≤ 0,020 ≤ 0,25 ≤ 2,00 0,025 ≤ 0,010 ≤ 0,11 24,0 to 26,0 - ≤ 0,20 - 20,0 to 22,0 -
b d
X2CrNiMo17-12-2 1.4404 ≤ 0,030 ≤ 1,00 ≤ 2,00 0,045 ≤ 0,015 ≤ 0,11 16,5 to 18,5 - 2,00 to 2,50 - 10,0 to 13,0 -
b d
X2CrNiMoN17-11-2 1.4406 ≤ 0,030 ≤ 1,00 ≤ 2,00 0,045 ≤ 0,015 0,12 to 0,22 16,5 to 18,5 - 2,00 to 2,50 - 10,0 to 12,5 -
b
X5CrNiMo17-12-2 1.4401 ≤ 0,07 ≤ 1,00 ≤ 2,00 0,045 ≤ 0,015 ≤ 0,11 16,5 to 18,5 - 2,00 to 2,50 - 10,0 to 13,0 -
X1CrNiMoN25-22-2 1.4466 ≤ 0,020 ≤ 0,70 ≤ 2,00 0,025 ≤ 0,010 0,10 to 0,16 24,0 to 26,0 - 2,00 to 2,50 - 21,0 to 23,0 -
b d
X6CrNiMoTi17-12-2 1.4571 ≤ 0,08 ≤ 1,00 ≤ 2,00 0,045 ≤ 0,015 - 16,5 to 18,5 - 2,00 to 2,50 - 10,5 to 13,5 Ti:5xC to 0,70
X6CrNiMoNb17-12-2 1.4580 ≤ 0,08 ≤ 1,00 ≤ 2,00 0,045 ≤ 0,015 - 16,5 to 18,5 - 2,00 to 2,50 10xC to 1,00 10,5 to 13,5 -
b
X2CrNiMo17-12-3 1.4432 ≤ 0,030 ≤ 1,00 ≤ 2,00 0,045 ≤ 0,015 ≤ 0,11 16,5 to 18,5 - 2,50 to 3,00 - 10,5 to 13,0 -
d
X2CrNiMoN17-13-3 1.4429 ≤ 0,030 ≤ 1,00 ≤ 2,00 0,045 ≤ 0,015 0,12 to 0,22 16,5 to 18,5 - 2,50 to 3,00 - 11,0 to 14,0 -
b d
X3CrNiMo17-13-3 1.4436 ≤ 0,05 ≤ 1,00 ≤ 2,00 0,045 ≤ 0,015 ≤ 0,11 16,5 to 18,5 - 2,50 to 3,00 - 10,5 to 13,0 -
X3CrNiMo18-12-3 1.4449 ≤ 0,035 ≤ 1,00 ≤ 2,00 0,045 ≤ 0,015 ≤ 0,08 17,0 to 18,2 ≤ 1,00 2,25 to 2,75 - 11,5 to 12,5 -
b
X2CrNiMo18-14-3 1.4435 ≤ 0,030 ≤ 1,00 ≤ 2,00 0,045 ≤ 0,015 ≤ 0,11 17,0 to 19,0 - 2,50 to 3,00 - 12,5 to 15,0 -
d
X2CrNiMoN18-12-4 1.4434 ≤ 0,030 ≤ 1,00 ≤ 2,00 0,045 ≤ 0,015 0,10 to 0,20 16,5 to 19,5 - 3,0 to 4,0 - 10,5 to 14,0 -
b d
X2CrNiMo18-15-4 1.4438 ≤ 0,030 ≤ 1,00 ≤ 2,00 0,045 ≤ 0,015 ≤ 0,11 17,5 to 19,5 - 3,0 to 4,0 - 13,0 to 16,0 -
X2CrNiMoN17-13-5 1.4439 ≤ 0,030 ≤ 1,00 ≤ 2,00 0,045 ≤ 0,015 0,12 to 0,22 16,5 to 18,5 - 4,0 to 5,0 - 12,5 to 14,5 -
*)
∗)
X1CrNiMoCuN24-22-8 1.4652 ≤ 0,020 ≤ 0,50 2,00 to 4,0 0,030 ≤ 0,005 0,45 to 0,55 23,0 to 25,0 0,30 to 0,60 7,0 to 8,0 - 21,0 to 23,0 -
X1CrNiSi18-15-4 1.4361 ≤ 0,015 3,7 to 4,5 ≤ 2,00 0,025 ≤ 0,010 ≤ 0,11 16,5 to 18,5 - ≤ 0,20 - 14,0 to 16,0 -
X11CrNiMnN19-8-6 1.4369 0,07 to 0,15 0,50 to 1,00 5,0 to 7,5 0,030 ≤ 0,015 0,20 to 0,30 17,5 to 19,5 - - - 6,5 to 8,5 -
X12CrMnNiN17-7-5 1.4372 ≤ 0,15 ≤ 1,00 5,5 to 7,5 0,045 ≤ 0,015 0,05 to 0,25 16,0 to 18,0 - - - 3,5 to 5,5 -
X2CrMnNiN17-7-5 1.4371 ≤ 0,030 ≤ 1,00 6,0 to 8,0 0,045 ≤ 0,015 0,15 to 0,20 16,0 to 17,0 - - - 3,5 to 5,5 -
X12CrMnNiN18-9-5 1.4373 ≤ 0,15 ≤ 1,00 7,5 to 10,5 0,045 ≤ 0,015 0,05 to 0,25 17,0 to 19,0 - - - 4,0 to 6,0 -
X8CrMnNiN18-9-5 1.4374 0,05 to 0,10 0,30 to 0,60 9,0 to 10,0 0,035 ≤ 0,030 0,25 to 0,32 17,5 to 18,5 ≤ 0,40 ≤ 0,50 - 5,0 to 6,0 -
B: 0,000 5 to

X8CrMnCuNB17-8-3 1.4597 ≤ 0,10 ≤ 2,00 6,5 to 8,5 0,040 ≤ 0,030 0,15 to 0,30 16,0 to 18,0 2,00 to 3,5 ≤ 1,00 - ≤ 2,00
0,005 0

X3CrNiCu19-9-2 1.4560 ≤ 0,035 ≤ 1,00 1,50 to 2,00 0,045 ≤ 0,015 ≤ 0,11 18,0 to 19,0 1,50 to 2,00 - - 8,0 to 9,0 -
X2CrNiCu19-10 1.4650 ≤ 0,030 ≤1,00 ≤ 2,00 0,045 ≤ 0,015 ≤ 0,08 18,5 to 20,0 ≤ 1,00 - - 9,0 to 10,0 -
e e
X6CrNiCuS18-9-2 1.4570 ≤ 0,08 ≤1,00 ≤ 2,00 0,045 0,15 to 0,35 ≤ 0,11 17,0 to 19,0 1,40 to 1,80 ≤ 0,60 - 8,0 to 10,0 -

9

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SIST EN 10088-1:2005
EN 10088-1:2005 (E)

Table 4 (concluded)
Steel designation % by mass

c
Name Number C Si Mn P S N Cr Cu Mo Nb Ni Others
max.
b
X3CrNiCu18-9-4 1.4567 ≤ 0,04 ≤ 1,00 ≤ 2,00 0,045 ≤ 0,015 ≤ 0,11 17,0 to 19,0 3,0 to 4,0 - - 8,5 to 10,5 -
X3CrNiCuMo17-11-3-2 1.4578 ≤ 0,04 ≤ 1,00 ≤ 2,00 0,045 ≤ 0,015 ≤ 0,11 16,5 to 17,5 3,0 to 3,5 2,00 to 2,50 - 10,0 to 11,0 -
X1NiCrMoCu31-27-4 1.4563 ≤ 0,020 ≤ 0,70 ≤ 2,00 0,030 ≤ 0,010 ≤ 0,11 26,0 to 28,0 0,70 to 1,50 3,0 to 4,0 - 30,0 to 32,0 -
X1NiCrMoCu25-20-5 1.4539 ≤ 0,020 ≤ 0,70 ≤ 2,00 0,030 ≤ 0,010 ≤ 0,15 19,0 to 21,0 1,20 to 2,00 4,0 to 5,0 - 24,0 to 26,0 -
X1CrNiMoCuN25-25-5 1.4537 ≤ 0,020 ≤ 0,70 ≤ 2,00 0,030 ≤ 0,010 0,17 to 0,25 24,0 to 26,0 1,00 to 2,00 4,7 to 5,7 - 24,0 to 27,0 -

X1CrNiMoCuN20-18-7 1.4547 ≤ 0,020 ≤ 0,70 ≤ 1,00 0,030 ≤ 0,010 0,18 to 0,25 19,5 to 20,5 0,50 to 1,00 6,0 to 7,0 - 17,5 to 18,5 -
e e
X2CrNiMoCuS17-10-2 1.4598 ≤ 0,03 ≤ 1,00 ≤ 2,00 0,045 0,10 to 0,25 ≤ 0,11 16,5 to 18,5 1,30 to 1,80 2,00 to 2,50 - 10,0 to 13,0 -
X1CrNiMoCuNW24-22-6 1.4659 ≤ 0,020 ≤ 0,70 2,00 to 4,0 0,030 ≤ 0,010 0,35 to 0,50 23,0 to 25,0 1,00 to 2,00 5,5 to 6,5 - 21,0 to 23,0 W:1,50 to 2,50
X1NiCrMoCuN25-20-7 1.4529 ≤ 0,020 ≤ 0,50 ≤ 1,00 0,030 ≤ 0,010 0,15 to 0,25 19,0 to 21,0 0,50 to 1,50 6,0 to 7,0 - 24,0 to 26,0 -
Al:0,15 to 0,45
X2NiCrAlTi32-20 1.4558 ≤ 0,030 ≤ 0,70 ≤ 1,00 0,020 ≤ 0,015 - 20,0 to 23,0 - - - 32,0 to 35,0
Ti:[8x(C+N)] to 0,60
X2CrNiMnMoN25-18-6-5 1.4565 ≤ 0,030 ≤ 1,00 5,0 to 7,0 0,030 ≤ 0,015 0,30 to 0,60 24,0 to 26,0 - 4,0 to 5,0 ≤ 0,15 16,0 to 19,0 -
a
Elements not quoted in this table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast. All appropriate precautions are to be taken to avoid the
addition of such elements from scrap and other materials used in production which would impair mechanical properties and the suitability of the steel.
b
For bars, rods, wire, sections, bright products and the relevant semi-finished products, a maximum content of 0,030 % S applies. Particular ranges of sulphur content may provide improvement of particular
properties. For machinability a controlled sulphur content of 0,015 % to 0,030 % is recommended and permitted. For weldability, a controlled sulphur content of 0,008 % to 0,030 % is recommended and
permitted. For polishability, a controlled sulphur content of 0,015 % max. is recommended.
c
For austenitic steel grades intended for cold heading and cold extruding, a Cu-content of max. 1,0 % is permitted.
d
Where for special reasons, e. g. hot workability for the fabrication of seamless tubes where it is necessary to minimize the deltaferrite content, or with the aim of low magnetic permeability, the maximum Ni
content may be increased by the following amounts:
0,50 % (m/m): 1.4571.
1,00 % (m/m): 1.4306, 1.4406, 1.4429, 1.4434, 1.4436, 1.4438, 1.4541, 1.4550.
1,50 % (m/m): 1.4404
e
Parts made of high sulphur free cutting austenitic steels may not comply with European Directive 94/27 regarding articles in contact with human skin.
*)
Patented steel grade.
10

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SIST EN 10088-1:2005
EN 10088-1:2005 (E)
a
Table 5 — Chemical composition (cast analysis) of austenitic-ferritic corrosion resisting steels
Steel designation % by mass

Name Number C Si Mn P S N Cr Cu Mo Ni W
max. max. max.
*) *)
X2CrNiN23-4 1.4362 0,030 ≤ 1,00 ≤ 2,00 0,035 0,015 0,05 to 0,20 22,0 to 24,0 0,10 to 0,60 0,10 to 0,60 3,5 to 5,5 -

X2CrNiCuN23-4 1.4655 0,030 ≤ 1,00 ≤ 2,00 0,035 0,015 0,05 to 0,20 22,0 to 24,0 1,00 to 3,00 0,10 to 0,60 3,5 to 5,5 -
b
X3CrNiMoN27-5-2 1.4460 0,05 ≤ 1,00 ≤ 2,00 0,035 0,015 0,05 to 0,20 25,0 to 28,0 - 1,30 to 2,00 4,5 to 6,5 -
∗) ∗)
X2CrNiMoN29-7-2 1.4477 0,030 ≤ 0,50 0,80 to 1,50 0,030 0,015 0,30 to 0,40 28,0 to 30,0 ≤ 0,80 1,50 to 2,60 5,8 to 7,5 -
c c
X2CrNiMoN22-5-3 1.4462 0,030 ≤ 1,00 ≤ 2,00 0,035 0,015 0,10 to 0,22 21,0 to 23,0 - 2,50 to 3,5 4,5 to 6,5 -
X2CrNiMoCuN25-6-3 1.4507 0,030 ≤ 0,70 ≤ 2,00 0,035 0,015 0,20 to 0,30 24,0 to 26,0 1,00 to 2,50 3,0 to 4,0 6,0 to 8,0 -
*) *)
X2CrNiMoN25-7-4 1.4410 0,030 ≤ 1,00 ≤ 2,00 0,035 0,015 0,24 to 0,35 24,0 to 26,0 - 3,0 to 4,5 6,0 to 8,0 -
X2CrNiMoCuWN25-7-4 1.4501 0,030 ≤ 1,00 ≤ 1,00 0,035 0,015 0,20 to 0,30 24,0 to 26,0 0,50 to 1,00 3,0 to 4,0 6,0 to 8,0 0,50 to 1,00
1,40 to
X2CrNiMoSi18-5-3 1.4424 0,030 1,20 to 2,00 0,035 0,015 0,05 to 0,10 18,0 to 19,0 - 2,50 to 3,0 4,5 to 5,2 -
2,00
a
Elements not listed in this table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast. All appropriate precautions are to be taken to avoid
the addition of such elements from scrap and other materials used in production which would impair mechanical properties and the suitability of the steel.
b
For bars, rods, wire, sections, bright products and the relevant semi-finished products, a maximum content of 0,030 % S applies. Particular ranges of sulphur content may provide improvement of
particular properties. For machinability a controlled sulphur content of 0,015 % to 0,030 % is recommended and permitted. For weldability, a controlled sulphur content of 0,008 % to 0,030 % is
recommended and permitted. For polishability, a controlled sulphur content of 0,015 % max. is recommended.
c

By agreement, this grade can be delivered with a Pitting Resistance Equivalent Number (PRE = Cr + 3,3 Mo + 16 N, compare Table C.1) greater than 34.
*)
Patented steel grade.

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SIST EN 10088-1:2005
EN 10088-1:2005 (E)
a
Table 6 — Chemical composition (cast analysis) of ferritic heat-resisting steels
Steel designation % by mass
Name Number C Si Mn P S Cr Al Others
max. max. max.
X10CrAlSi7 1.4713 max. 0,12 0,50 to 1,00 1,00 0,040 0,015 6,0 to 8,0 0,50 to 1,00 -
X10CrAlSi13 1.4724 max. 0,12 0,70 to 1,40 1,00 0,040 0,015 12,0 to 14,0 0,70 to 1,20 -
X10CrAlSi18 1.4742 max. 0,12 0,70 to 1,40 1,00 0,040 0,015 17,0 to 19,0 0,70 to 1,20 -
X10CrAlSi25 1.4762 max. 0,12 0,70 to 1,40 1,00 0,040 0,015 23,0 to 26,0 1,20 to 1,70 -
X18CrN28 1.4749 0,15 to 0,20 max. 1,00 1,00 0,040 0,015 26,0 to 29,0 - N: 0,15 to 0,25
X3CrAlTi18-2 1.4736 max. 0,04 max. 1,00 1,00 0,040 0,015 17,0 to 18,0 1,70 to 2,10 Ti: [4(C+N)+0,2] to 0,80
a
Elements not listed in the table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast. All appropriate precautions are to be taken
to avoid addition of such elements from scrap and other materials used in production which would impair mechanical properties and the suitability of the steel.

12

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SIST EN 10088-1:2005
EN 10088-1:2005 (E)
a
Table 7 — Chemical composition (cast analysis) of austenitic and austenitic-ferritic heat-resisting steels
Steel designation % by mass
...