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ISO/TS 15510:2003

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Stainless steels — Chemical composition

Stainless steels — Chemical composition

ISO TS 15510:2003 lists the chemical compositions of stainless steels agreed by ISO/TC 17/SC 4 mainly on the basis of a composition of the specifications in existing ISO, ASTM, EN and JIS standards. They apply to all product forms including ingots and semi-finished material.

Aciers inoxydables — Composition chimique

L'ISO TS 15510:2003 énonce la composition chimique des aciers inoxydables approuvée par l'ISO/TC 17/SC 4, fondée principalement sur une comparaison des spécifications figurant dans les normes ISO, ASTM, EN et JIS existantes. Elle est applicable à toutes les formes de produits, y compris les lingots et les demi-produits.

General Information

Status
Withdrawn
Publication Date
24-Apr-2003
Withdrawal Date
24-Apr-2003
ICS
77.140.20 - Stainless steels
Technical Committee
ISO/TC 17/SC 4 - Heat treatable and alloy steels
Drafting Committee
ISO/TC 17/SC 4 - Heat treatable and alloy steels
Current Stage
9599 - Withdrawal of International Standard
Completion Date
13-Dec-2010
Ref Project

Relations

Revised
ISO 15510:2010 - Stainless steels — Chemical composition
Effective Date
15-Apr-2008
Revises
ISO/TR 15510:1997 - Stainless steels — Chemical composition
Effective Date
15-Apr-2008

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TECHNICAL ISO/TS
SPECIFICATION 15510
First edition
2003-04-15

Stainless steels — Chemical composition
Aciers inoxydables — Composition chimique




Reference number
ISO/TS 15510:2003(E)
©
ISO 2003

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ISO/TS 15510:2003(E)
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ii © ISO 2003 — All rights reserved

---------------------- Page: 2 ----------------------
ISO/TS 15510:2003(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
In other circumstances, particularly when there is an urgent market requirement for such documents, a
technical committee may decide to publish other types of normative document:
 an ISO Publicly Available Specification (ISO/PAS) represents an agreement between technical experts in
an ISO working group and is accepted for publication if it is approved by more than 50 % of the members
of the parent committee casting a vote;
 an ISO Technical Specification (ISO/TS) represents an agreement between the members of a technical
committee and is accepted for publication if it is approved by 2/3 of the members of the committee casting
a vote.
An ISO/PAS or ISO/TS is reviewed after three years in order to decide whether it will be confirmed for a
further three years, revised to become an International Standard, or withdrawn. If the ISO/PAS or ISO/TS is
confirmed, it is reviewed again after a further three years, at which time it must either be transformed into an
International Standard or be withdrawn.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO/TS 15510 was prepared by Technical Committee ISO/TC 17, Steel, Subcommittee SC 4, Heat treatable
and alloy steels.
© ISO 2003 — All rights reserved iii

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ISO/TS 15510:2003(E)
Introduction
In its meeting held on 6th June 2000, ISO/TC 17/SC 4 decided to issue the revised version of
ISO/TR 15510:1997 as a Technical Specification. It was nevertheless also stated that future discussions on
ISO/TS 15510 should lead to a full ISO Standard.
iv © ISO 2003 — All rights reserved

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TECHNICAL SPECIFICATION ISO/TS 15510:2003(E)

Stainless steels — Chemical composition
1 Scope
This ISO Technical Specification lists the chemical compositions of stainless steels agreed by
ISO/TC 17/SC 4 mainly on the basis of a composition of the specifications in existing ISO, ASTM, EN and JIS
standards. They apply to all product forms including ingots and semi-finished material.
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.
ISO 6929:1987, Steel products — Definitions and classification
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 6929 as well as the following apply.
3.1
stainless steel
steel with at least 10,5 % mass fraction Cr and a maximum of 1,2 % mass fraction C
NOTE For the classification of stainless steels according to their structure, composition and application see Annex A.
4 Chemical composition
The chemical composition of stainless steels approved by ISO/TC 17/SC 4 is given in Table 1.
NOTE If, in special cases, e.g. an ISO committee charged with establishing or revising a standard for a specific
product or application of stainless steels, sees the necessity of deviating from the specifications in Table 1 it should inform
ISO/TC 17/SC 4 (Secretariat's address: DIN, Postfach 10 51 45, 40042 Düsseldorf, Germany) of the reasons for this and
try, before such deviations are considered, to achieve consensus for a corresponding modification to Table 1.
5 Designation of comparable steels
In Table 2 are given the designations of stainless steels which are listed in other international, regional or
national standards or designation systems and are comparable to the grades in Table 1.
NOTE To compare similar grades, it is necessary to check each element before making a substitution.

© ISO 2003 — All rights reserved 1

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ISO/TS 15510:2003(E)
2 © ISO 2003 — All rights reserved
Table 1 — Internationally agreed specifications for the composition of stainless steels (applicable for cast analysis); (mass %)
Line Steel designation C Si Mn P S N Cr Mo Ni Others
 min. max. min. max. min. max. max. min. max. min. max. min. max. min. max. min. max. Element min. max.
a) Austenitic steels
a b
1 X2CrNi18-9 0,030 1,00 2,00 0,045 0,030 0,11 17,5 19,5  8,0 10,0
a b
2 X2CrNi19-11 0,030 1,00 2,00 0,045 0,030 0,11 18,0 20,0  10,0 12,0
a
3 X2CrNiN18-9 0,030 1,00 2,00 0,045 0,030 0,12 0,22 17,5 19,5  8,0 10,0
4 X2CrNiN18-7 0,030 1,00 2,00 0,045 0,015 0,10 0,20 16,5 18,5  6,0 8,0
a
5 X5CrNi17-7 0,07 1,00 2,00 0,045 0,030 0,11 16,0 18,0  6,0 8,0
a
6 X5CrNi18-9 0,07 1,00 2,00 0,045 0,030 0,11 17,5 19,5  8,0 10,5
a
7 X7CrNi18-9 0,04 0,08 1,00 2,00 0,045 0,030 0,11 18,0 20,0  8,0 10,5
a
8 X6CrNi18-12 0,08 1,00 2,00 0,045 0,030 0,11 17,0 19,0  10,5 13,0
a
9 X3NiCr18-16 0,04 1,00 2,00 0,045 0,030 15,0 17,0  17,0 19,0
10 X5CrNiN18-8 0,07 1,00 2,50 0,045 0,030 0,10 0,16 18,0 20,0  8,0 11,0
a
11 X10CrNi18-8 0,05 0,15 2,00 2,00 0,045 0,030 0,11 16,0 19,0 0,80 6,0 9,5
12 X1CrNi25-21 0,02 0,25 2,00 0,025 0,010 0,11 24,0 26,0 0,20 20,0 22,0
a
13 X12CrMnNiN17-7-5 0,15 1,00 5,5 7,5 0,045 0,030 0,05 0,25 16,0 18,0  3,5 5,5
c
14 X10CrNiS18-9 0,12 1,00 2,00 0,060 0,15  0,11 17,0 19,0  8,0 10,0 Cu
a
15 X3CrNiCu18-9-4 0,04 1,00 2,00 0,045 0,030 0,11 17,0 19,0  8,0 10,5 Cu 3,0 4,0
a b
16 X6CrNiTi18-10 0,08 1,00 2,00 0,045 0,030 17,0 19,0  9,0 12,0 Ti 5 × C 0,70
a b
17 X7CrNiTi18-10 0,04 0,08 1,00 2,00 0,045 0,030 17,0 19,0  9,0 12,0 Ti 5 × C 0,70
18 X6CrNiTiB18-10 0,04 0,08 1,00 2,00 0,035 0,015  17,0 19,0  9,0 12,0 Ti 5 × C 0,70
B 0,001 5 0,005 0
a b
19 X6CrNiNb18-10 0,08 1,00 2,00 0,045 0,030 17,0 19,0  9,0 12,0 Nb 10 × C 1,00
a b
20 X7CrNiNb18-10 0,04 0,08 1,00 2,00 0,045 0,030 17,0 19,0  9,0 12,0 Nb 10 × C 1,00
a b
21 X2CrNiMo17-12-2 0,030 1,00 2,00 0,045 0,030 0,11 16,5 18,5 2,00 3,00 10,0 13,0
a b
22 X2CrNiMo17-12-3 0,030 1,00 2,00 0,045 0,030 0,11 16,5 18,5 2,50 3,00 10,5 13,0
23 X2CrNiMo18-14-3 0,030 1,00 2,00 0,045 0,015 0,11 17,0 19,0 2,50 3,00 12,5 15,0
a
24 X2CrNiMo19-14-4 0,030 1,00 2,00 0,045 0,030 0,11 17,5 20,0 3,0 4,0 12,0 16,0
a b
25 X2CrNiMoN17-11-2 0,030 1,00 2,00 0,045 0,030 0,12 0,22 16,5 18,5 2,00 3,00 10,0 12,5

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ISO/TS 15510:2003(E)
© ISO 2003 — All rights reserved 3
Table 1 (continued)
Line Steel designation C Si Mn P S N Cr Mo Ni Others
 min. max. min. max. min. max. max. min. max. min. max. min. max. min. max. min. max. Element min. max.
a) Austenitic steels
a b
26 X2CrNiMoN17-12-3 0,030 1,00 2,00 0,045 0,030 0,12 0,22 16,5 18,5 2,50 3,00 10,5 13,0
a b
27 X2CrNiMoN18-12-4 0,030 1,00 2,00 0,045 0,030 0,10 0,20 16,5 19,5 3,00 4,00 10,5 14,0
a
28 X2CrNiMoN18-15-5 0,030 1,00 2,00 0,045 0,030 0,12 0,22 17,0 20,0 4,0 5,0 13,0 17,0
29 X1CrNiMoN25-22-2 0,020 0,70 2,00 0,025 0,010 0,10 0,16 24,0 26,0 2,00 2,50 21,0 23,0
a
30 X5CrNiMo17-12-2 0,07 1,00 2,00 0,045 0,030 0,11 16,5 18,5 2,00 3,00 10,0 13,0
a b
31 X3CrNiMo17-12-3 0,05 1,00 2,00 0,045 0,030 0,11 16,5 18,5 2,50 3,00 10,5 13,0
a b
32 X6CrNiMoTi17-12-2 0,08 1,00 2,00 0,045 0,030 16,5 18,5 2,00 2,50 10,5 13,5 Ti 5 × C 0,70
a
33 X6CrNiMoNb17- 0,08 1,00 2,00 0,045 0,030 16,5 18,5 2,00 2,50 10,5 13,5 Nb 10 × C 1,00
12-2
34 X1CrNiMoCuN20- 0,020 0,70 1,00 0,035 0,015 0,18 0,25 19,5 20,5 6,0 7,0 17,5 18,5 Cu 0,50 1,00
d
18-7
35 X1NiCrMoCu25- 0,020 0,75 2,00 0,035 0,015 0,15 19,0 22,0 4,0 5,0 23,5 26,0 Cu 1,20 2,00
20-5
36 X1NiCrMoCu31- 0,020 0,70 2,00 0,030 0,010 0,11 26,0 28,0 3,0 4,0 30,0 32,0 Cu 0,70 1,50
27-4
37 X1NiCrMoCuN25- 0,020 0,75 2,00 0,035 0,015 0,15 0,25 19,0 21,0 6,0 7,0 24,0 26,0 Cu 0,50 1,50
20-7
38 X1CrNiMoCuN24- 0,020 0,50 2,0 4,0 0,030 0,005 0,45 0,55 23,0 25,0 7,0 8,0 21,0 23,0 Cu 0,30 0,60
22-8
39 X8CrMnNiN18-9-5 0,05 0,10 0,30 0,60 9,0 10,0 0,035 0,030 0,25 0,32 17,5 18,5 0,50 5,0 6,0 Cu 0,40
40 X8CrMnCuN17-8-3 0,10 2,00 6,5 8,5 0,040 0,030 0,15 0,30 16,0 18,0 1,00 2,00 Cu 2,00 3,50
41 X1CrNiMoCuNW24- 0,020 0,70 2,0 4,0 0,030 0,010 0,35 0,50 23,0 25,0 5,5 6,5 21,0 23,0 Cu 1,00 2,00
22-6
          W 1,50 2,50
42 X2CrNiMnMoN25- 0,030 1,00 5,0 7,0 0,030 0,015 0,30 0,60 24,0 26,0 4,0 5,0 16,0 19,0 Nb 0,15
18-6-5
43 X11CrNiMnN19-8-6 0,07 0,15 0,50 1,00 5,0 7,5 0,030 0,015 0,20 0,30 17,5 19,5  6,5 8,5
44 X6CrNiCuS18-9-2 0,08 1,00 2,00 0,045 0,15  0,11 17,0 19,0 0,60 8,0 10,0 Cu 1,4 1,8
45 X6CrNiCu17-8-2 0,08 1,70 3,00 0,045 0,030  15,0 18,0  6,0 9,0 Cu 1,0 3,0
46 X12CrNiSi18-9-3 0,15 2,00 3,00 2,00 0,045 0,030  17,0 19,0  8,0 10,0

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ISO/TS 15510:2003(E)
4 © ISO 2003 — All rights reserved
Table 1 (continued)
Line Steel designation C Si Mn P S N Cr Mo Ni Others
 min. max. min. max. min. max. max. min. max. min. max. min. max. min. max. min. max. Element min. max.
b) Austenitic-ferritic (duplex) steels
d
51 X2CrNiN23-4 0,030 1,00 2,00 0,035 0,015 0,05 0,20 22,0 24,0 0,10 0,60 3,5 5,5 Cu 0,10 0,60
e
52 X2CrNiMoN22-5-3 0,030 1,00 2,00 0,035 0,015 0,10 0,22 21,0 23,0 2,5 3,5 4,5 6,5
53 X2CrNiMoCuN25- 0,030 0,70 2,00 0,035 0,015 0,15 0,30 24,0 26,0 2,5 4,0 5,0 7,5 Cu 1,00 2,50
6-3
d
54 X2CrNiMoN25-7-4 0,030 1,00 2,00 0,035 0,015 0,24 0,35 24,0 26,0 3,0 4,5 6,0 8,0
55 X3CrNiMoN27-5-2 0,050 1,00 2,00 0,035 0,015 0,05 0,20 25,0 28,0 1,30 2,00 4,5 6,5
56 X2CrNiMoCuWN25- 0,030 1,00 1,00 0,035 0,015 0,20 0,30 24,0 26,0 3,0 4,0 6,0 8,0 Cu 0,50 1,00
7-4
W 0,50 1,00
c) Ferritic steels
61 X2CrNi12 0,030 1,00 1,50 0,040 0,015 0,030 10,5 12,5  0,30 1,10
a
62 X2CrTi12 0,030 1,00 1,00 0,040 0,030 10,5 12,5  0,50 Ti 6 × (C+N) 0,65
f
63 X6CrTi12 0,08 1,00 1,00 0,040 0,030 10,5 12,5  0,50 Ti 6 × (C+N) 0,65
64 X6CrNiTi12 0,08 1,00 1,00 0,040 0,015  10,5 12,5  0,50 1,50 Ti 0,05 0,35
a
65 X6Cr13 0,08 1,00 1,00 0,040 0,030 11,5 14,0  0,75
a
66 X6CrAl13 0,08 1,00 1,00 0,040 0,030 11,5 14,0   Al 0,10 0,30

g a
67 X6Cr17 0,08 1,00 1,00 0,040 0,030 16,0 18,0
68 X7CrS17 0,09 1,50 1,50 0,040 0,15  16,0 18,0 0,60
a
69 X6CrMo17-1 0,08 1,00 1,00 0,040 0,030 16,0 18,0 0,90 1,40
a
70 X3CrTi17 0,05 1,00 1,00 0,040 0,030 16,0 19,0   Ti 4 × (C + N) + 0,20 0,75
71 X6CrMoNb17-1 0,08 1,00 1,00 0,040 0,015 0,040 16,0 18,0 0,80 1,40  Nb 5 × C 1,00
72 X2CrMoTi18-2 0,025 1,00 1,00 0,040 0,015 0,025 17,0 20,0 1,80 2,50  Ti+Nb 4 × (C + N) + 0,20 0,80
73 X3CrNb17 0,05 1,00 1,00 0,040 0,015  16,0 18,0   Nb 12 × C 1,00
74 X2CrMoTiS18-2 0,03 1,00 0,50 0,040 0,15  17,5 19,0 2,00 2,50  Ti 0,30 0,80
(C + N) 0,040

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ISO/TS 15510:2003(E)
© ISO 2003 — All rights reserved 5
Table 1 (continued)
Line Steel designation C Si Mn P S N Cr Mo Ni Others
 min. max. min. max. min. max. max. min. max. min. max. min. max. min. max. min. max. Element min. max.
d) Martensitic steels
81 X3CrNiMo13-4 0,05 0,70 0,50 1,00 0,040 0,015  12,0 14,0 0,30 1,00 3,5 4,5
a
82 X12Cr13 0,08 0,15 1,00 1,50 0,040 0,030 11,5 13,5  0,75
83 X12CrS13 0,08 0,15 1,00 1,50 0,040 0,15  12,0 14,0 0,60
a
84 X20Cr13 0,16 0,25 1,00 1,50 0,040 0,030 12,0 14,0
a
85 X30Cr13 0,26 0,35 1,00 1,50 0,040 0,030 12,0 14,0
a
86 X39Cr13 0,36 0,42 1,00 1,00 0,040 0,030 12,5 14,5
a
87 X46Cr13 0,43 0,50 1,00 1,00 0,040 0,030 12,5 14,5
a
88 X52Cr13 0,48 0,55 1,00 1,00 0,040 0,030 12,5 14,5
a
89 X60Cr13 0,56 0,65 1,00 1,00 0,040 0,030 12,5 14,5
90 X14CrS17 0,10 0,17 1,00 1,50 0,040 0,15  16,0 18,0 0,60
91 X17CrNi16-2 0,12 0,22 1,00 1,50 0,040 0,030  15,0 17,0  1,50 2,50
92 X39CrMo17-1 0,33 0,45 1,00 1,50 0,040 0,015  15,5 17,5 0,80 1,30 1,00
93 X105CrMo17 0,95 1,20 1,00 1,00 0,040 0,015  16,0 18,0 0,40 0,80

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ISO/TS 15510:2003(E)
6 © ISO 2003 — All rights reserved
Table 1 (continued)
Line Steel designation C Si Mn P S N Cr Mo Ni Others
 min. max. min. max. min. max. max. min. max. min. max. min. max. min. max. min. max. Element min. max.
e) Precipitation hardening steels
a
101 X5CrNiCuNb16-4 0,07 0,70 1,50 0,040 0,030 15,0 17,0 0,60 3,0 5,0 Cu 3,0 5,0
Nb 5 × C 0,45
h
102 X7CrNiAl17-7 0,09 0,70 1,00 0,040 0,015  16,0 18,0  6,5 7,8 Al 0,70 1,50
103 X8CrNiMoAl15-7-2 0,10 0,70 1,20 0,040 0,015  14,0 16,0 2,00 3,00 6,5 7,8 Al 0,75 1,50
a
Particular ranges of sulfur content may provide improvement of particular properties. For machinability, a controlled sulfur content of 0,015 % to 0,030 % is recommended. For weldability, a controlled sulfur content

of 0,008 % to 0,020 % may be beneficial. For polishability, a controlled sulfur content of 0,015 % maximum is recommended.
b
Where, for special reasons (e.g. hot workability or low magnetic permeability), it is necessary to minimize the ferrite content, the maximum nickel content may be increased by the following amounts:

by 0,50 % for steels in lines 1 and 32;
by 1,00 % for steels in lines 2, 16, 17, 19, 20, 25, 26, 27 and 31;
by 1,50 % for steels in lines 21 and 22.
c
Copper may be added up to 1,00 %. If added, it must be reported in the inspection document, provided such a document has been ordered.
d
Patented grade.
e
For special applications, the lower limits of N, Cr and Mo can be limited to 0,14 %, 22,0 % and 3,0 % respectively.
f
Where machinability is of special importance increased sulfur contents of up to 0,045 % are recommended and permitted.
g
For certain applications, e.g. weldability or high strength wire, a maximum of 0,12 % C may be agreed.
h
By special agreement, the steel when intended for cold deformation may also be ordered with 7,00 % to 8,30 % Ni.

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ISO/TS 15510:2003(E)
© ISO 2003 — All rights reserved 7
Table 2 — Designations of the steels given in Table 1 and of comparable grades covered in various international,
regional or national standards or designation systems
a
Steel designations according to
Line Table 1 ASTM A EN 10088-1:1995  ISO ISO
b
959/UNS 683-13: 683-16: ISO 4954:1993 ISO 4955:1994 ISO 6931-1:1994 ISO 6931-2:1989 ISO 9328-5:1991
c c d e
Name Number JIS CSN
1986 1976
a) Austenitic steels
1 X2CrNi18-9 S30403 X2CrNi18-9 1.4307 SUS304L — 10 — X2CrNi18 10E — — — X2CrNi18-10
2 X2CrNi19-11 S30403 X2CrNi19-11 1.4306 SUS304L 17249 — — — — — — —
3 X2CrNiN18-9 S30453 X2CrNiN18-10 1.4311 SUS304LN — 10N — — — — — X2CrNiN18-10
4 X2CrNiN18-7 S30153 X2CrNiN18-7 1.4318 SUS301L — — — — — — — —
5 X5CrNi17-7 S30100 (X3CrNiN17-8) (1.4319) SUS301 — — — — — — — —
6 X5CrNi18-9 S30400 X5CrNi18-10 1.4301 SUS304 17240 11 — X5CrNi18 9E — — X5CrNi18 10 X5CrNi18-9
7 X7CrNi18-9 S30409 (X6CrNi18-10) (1.4948) SUS304H — — — — X7CrNi18 9 — — X7CrNi18-9
8 X6CrNi18-12 S30500 X4CrNi18-12 1.4303 SUS305 — 13 — X5CrNi18 12E — — — —
9 X3NiCr18-16 S38400 — — SUS384 — — — X6NiCr18 16E — — — —
10 X5CrNiN18-8 S30451 (X5CrNiN19-9) (1.4315) SUS304N1 — — — — — — — —
11 X10CrNi18-8 S30100 X10CrNi18-8 1.4310 — — 14 — — — X9CrNi18-8 X12CrNi17 7 —
12 X1CrNi25-21 S31002 X1CrNi25-21 1.4335 — — — — — — — — —
13 X12CrMnNiN17-7-5 S20100 X12CrMnNiN17-7-5 1.4372 SUS201 — A-2 — — — — — —
14 X10CrNiS18-9 S30300
...

SPÉCIFICATION ISO/TS
TECHNIQUE 15510
Première édition
2003-04-15


Aciers inoxydables — Composition
chimique
Stainless steels — Chemical composition




Numéro de référence
ISO/TS 15510:2003(F)
©
ISO 2003

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ISO/TS 15510:2003(F)
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ii © ISO 2003 — Tous droits réservés

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ISO/TS 15510:2003(F)
Avant-propos
L'ISO (Organisation internationale de normalisation) est une fédération mondiale d'organismes nationaux de
normalisation (comités membres de l'ISO). L'élaboration des Normes internationales est en général confiée
aux comités techniques de l'ISO. Chaque comité membre intéressé par une étude a le droit de faire partie du
comité technique créé à cet effet. Les organisations internationales, gouvernementales et non
gouvernementales, en liaison avec l'ISO participent également aux travaux. L'ISO collabore étroitement avec
la Commission électrotechnique internationale (CEI) en ce qui concerne la normalisation électrotechnique.
Les Normes internationales sont rédigées conformément aux règles données dans les Directives ISO/CEI,
Partie 2.
La tâche principale des comités techniques est d'élaborer les Normes internationales. Les projets de Normes
internationales adoptés par les comités techniques sont soumis aux comités membres pour vote. Leur
publication comme Normes internationales requiert l'approbation de 75 % au moins des comités membres
votants.
Dans d'autres circonstances, en particulier lorsqu'il existe une demande urgente du marché, un comité
technique peut décider de publier d'autres types de documents normatifs:
 une Spécification publiquement disponible ISO (ISO/PAS) représente un accord entre les experts dans
un groupe de travail ISO et est acceptée pour publication si elle est approuvée par plus de 50 % des
membres votants du comité dont relève le groupe de travail;
 une Spécification technique ISO (ISO/TS) représente un accord entre les membres d'un comité technique
et est acceptée pour publication si elle est approuvée par 2/3 des membres votants du comité.
Une ISO/PAS ou ISO/TS fait l'objet d'un examen après trois ans afin de décider si elle est confirmée pour trois
nouvelles années, révisée pour devenir une Norme internationale, ou annulée. Lorsqu'une ISO/PAS ou
ISO/TS a été confirmée, elle fait l'objet d'un nouvel examen après trois ans qui décidera soit de sa
transformation en Norme internationale soit de son annulation.
L'attention est appelée sur le fait que certains des éléments du présent document peuvent faire l'objet de
droits de propriété intellectuelle ou de droits analogues. L'ISO ne saurait être tenue pour responsable de ne
pas avoir identifié de tels droits de propriété et averti de leur existence.
L'ISO/TS 15510 a été élaborée par le comité technique ISO/TC 17, Acier, sous-comité SC 4, Aciers pour
traitements thermiques et aciers alliés.
© ISO 2003 — Tous droits réservés iii

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ISO/TS 15510:2003(F)
Introduction
À sa réunion du 6 juin 2000, l'ISO/TC 17/SC 4 décida de publier la version révisée de l'ISO/TR 15510:1997 en
tant que Spécification technique. Il fut aussi déclaré, cependant, que les débats futurs relatifs à
l'ISO/TS 15510 devraient aboutir à la publication d'une norme ISO à part entière.

iv © ISO 2003 — Tous droits réservés

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SPÉCIFICATION TECHNIQUE ISO/TS 15510:2003(F)

Aciers inoxydables — Composition chimique
1 Domaine d'application
La présente Spécification technique de l'ISO énonce la composition chimique des aciers inoxydables
approuvée par l'ISO/TC 17/SC 4, fondée principalement sur une comparaison des spécifications figurant dans
les normes ISO, ASTM, EN et JIS existantes. Elle est applicable à toutes les formes de produits, y compris les
lingots et les demi-produits.
2 Références normatives
Les documents de référence suivants sont indispensables pour l'application du présent document. Pour les
références datées, seule l'édition citée s'applique. Pour les références non datées, la dernière édition du
document de référence s'applique (y compris les éventuels amendements).
ISO 6929:1987, Produits en acier — Définition et classification
3 Termes et définitions
Pour les besoins du présent document, les termes et définitions donnés dans l'ISO 6929 ainsi que les
suivants s'appliquent.
3.1
acier inoxydable
acier contenant au minimum 10,5 % en masse de Cr et au maximum 1,2 % en masse de C
NOTE Pour la classification des aciers inoxydables en fonction de leur structure, de leur composition et de leur
application, voir l'Annexe A.
4 Composition chimique
La composition chimique des aciers inoxydables approuvée par l'ISO TC 17/SC 4 est donnée dans le
Tableau 1.
NOTE Si par exemple, dans certains cas particuliers, un comité technique de l'ISO chargé de la préparation ou de la
révision d'une norme pour un produit spécifique, ou pour une application en acier inoxydable, juge nécessaire de s'écarter
des spécifications du Tableau 1, il convient qu'il informe l'ISO/TC 17/SC 4 (adresse du secrétariat: DIN, Postfach 10 51 45,
40042 Düsseldorf, Allemagne) des raisons de cet écart et tente, avant que de tels écarts soient envisagés, de parvenir à
un consensus pour une modification correspondante du Tableau 1.
5 Désignations d'aciers comparables
Dans le Tableau 2 sont données les désignations des aciers inoxydables figurant dans d'autres Normes
internationales, régionales ou nationales, ou dans d'autres systèmes de désignation et qui sont comparables
aux nuances du Tableau 1.
NOTE Afin de comparer des nuances similaires, il importe de vérifier chaque élément avant de procéder à une
substitution.
© ISO 2003 — Tous droits réservés 1

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ISO/TS 15510:2003(F)
2 © ISO 2003 — Tous droits réservés
Tableau 1 — Spécifications approuvées au niveau international pour la composition des aciers inoxydables
(applicables pour l'analyse sur coulée), en pour cent en masse
Ligne C Désignation Si Mn P S N Cr Mo Ni Autres
de l'acier
min. max. min. max. min. max. max. min. max. min. max. min. max. min. max. min. max. Élément min. max.
a) Aciers austénitiques
a b
1 X2CrNi18-9 0,030 1,00 2,00 0,045 0,030 0,11 17,5 19,5  8,0 10,0
a b
2 X2CrNi19-11 0,030 1,00 2,00 0,045 0,030 0,11 18,0 20,0  10,0 12,0
a
3 X2CrNiN18-9 0,030 1,00 2,00 0,045 0,030 0,12 0,22 17,5 19,5  8,0 10,0
4 X2CrNiN18-7 0,030 1,00 2,00 0,045 0,015 0,10 0,20 16,5 18,5  6,0 8,0
a
5 X5CrNi17-7 0,07 1,00 2,00 0,045 0,030 0,11 16,0 18,0  6,0 8,0
a
6 X5CrNi18-9 0,07 1,00 2,00 0,045 0,030 0,11 17,5 19,5  8,0 10,5
a
7 X7CrNi18-9 0,04 0,08 1,00 2,00 0,045 0,030 0,11 18,0 20,0  8,0 10,5
a
8 X6CrNi18-12 0,08 1,00 2,00 0,045 0,030 0,11 17,0 19,0  10,5 13,0
a
9 X3NiCr18-16 0,04 1,00 2,00 0,045 0,030 15,0 17,0  17,0 19,0
10 X5CrNiN18-8 0,07 1,00 2,50 0,045 0,030 0,10 0,16 18,0 20,0  8,0 11,0
a
11 X10CrNi18-8 0,05 0,15 2,00 2,00 0,045 0,030 0,11 16,0 19,0 0,80 6,0 9,5
12 X1CrNi25-21 0,02 0,25 2,00 0,025 0,010 0,11 24,0 26,0 0,20 20,0 22,0
a
13 X12CrMnNiN17-7-5 0,15 1,00 5,5 7,5 0,045 0,030 0,05 0,25 16,0 18,0  3,5 5,5
c
14 X10CrNiS18-9 0,12 1,00 2,00 0,060 0,15  0,11 17,0 19,0  8,0 10,0 Cu
a
15 X3CrNiCu18-9-4 0,04 1,00 2,00 0,045 0,030 0,11 17,0 19,0  8,0 10,5 Cu 3,0 4,0
a b
16 X6CrNiTi18-10 0,08 1,00 2,00 0,045 0,030 17,0 19,0  9,0 12,0 Ti 5 × C 0,70
a b
17 X7CrNiTi18-10 0,04 0,08 1,00 2,00 0,045 0,030 17,0 19,0  9,0 12,0 Ti 5 × C 0,70
18 X6CrNiTiB18-10 0,04 0,08 1,00 2,00 0,035 0,015  17,0 19,0  9,0 12,0 Ti 5 × C 0,70
B 0,001 5 0,005 0
a b
19 X6CrNiNb18-10 0,08 1,00 2,00 0,045 0,030 17,0 19,0  9,0 12,0 Nb 10 × C 1,00
a b
20 X7CrNiNb18-10 0,04 0,08 1,00 2,00 0,045 0,030 17,0 19,0  9,0 12,0 Nb 10 × C 1,00
a b
21 X2CrNiMo17-12-2 0,030 1,00 2,00 0,045 0,030 0,11 16,5 18,5 2,00 3,00 10,0 13,0
a b
22 X2CrNiMo17-12-3 0,030 1,00 2,00 0,045 0,030 0,11 16,5 18,5 2,50 3,00 10,5 13,0
23 X2CrNiMo18-14-3 0,030 1,00 2,00 0,045 0,015 0,11 17,0 19,0 2,50 3,00 12,5 15,0
a
24 X2CrNiMo19-14-4 0,030 1,00 2,00 0,045 0,030 0,11 17,5 20,0 3,0 4,0 12,0 16,0
a b
25 X2CrNiMoN17-11-2 0,030 1,00 2,00 0,045 0,030 0,12 0,22 16,5 18,5 2,00 3,00 10,0 12,5

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ISO/TS 15510:2003(F)
© ISO 2003 — Tous droits réservés 3
Tableau 1 (suite)
Ligne C Désignation Si Mn P S N Cr Mo Ni Autres
de l'acier
min. max. min. max. min. max. max. min. max. min. max. min. max. min. max. min. max. Élément min. max.
a) Aciers austénitiques
a b
26 X2CrNiMoN17-12-3 0,030 1,00 2,00 0,045 0,030 0,12 0,22 16,5 18,5 2,50 3,00 10,5 13,0
a b
27 X2CrNiMoN18-12-4 0,030 1,00 2,00 0,045 0,030 0,10 0,20 16,5 19,5 3,00 4,00 10,5 14,0
a
28 X2CrNiMoN18-15-5 0,030 1,00 2,00 0,045 0,030 0,12 0,22 17,0 20,0 4,0 5,0 13,0 17,0
29 X1CrNiMoN25-22-2 0,020 0,70 2,00 0,025 0,010 0,10 0,16 24,0 26,0 2,00 2,50 21,0 23,0
a
30 X5CrNiMo17-12-2 0,07 1,00 2,00 0,045 0,030 0,11 16,5 18,5 2,00 3,00 10,0 13,0
a b
31 X3CrNiMo17-12-3 0,05 1,00 2,00 0,045 0,030 0,11 16,5 18,5 2,50 3,00 10,5 13,0
a b
32 X6CrNiMoTi17-12-2 0,08 1,00 2,00 0,045 0,030 16,5 18,5 2,00 2,50 10,5 13,5 Ti 5 × C 0,70
a
33 X6CrNiMoNb17- 0,08 1,00 2,00 0,045 0,030 16,5 18,5 2,00 2,50 10,5 13,5 Nb 10 × C 1,00
12-2
34 X1CrNiMoCuN20-18- 0,020 0,70 1,00 0,035 0,015 0,18 0,25 19,5 20,5 6,0 7,0 17,5 18,5 Cu 0,50 1,00
d
7
35 X1NiCrMoCu25- 0,020 0,75 2,00 0,035 0,015 0,15 19,0 22,0 4,0 5,0 23,5 26,0 Cu 1,20 2,00
20-5
36 X1NiCrMoCu31- 0,020 0,70 2,00 0,030 0,010 0,11 26,0 28,0 3,0 4,0 30,0 32,0 Cu 0,70 1,50
27-4
37 X1NiCrMoCuN25-20- 0,020 0,75 2,00 0,035 0,015 0,15 0,25 19,0 21,0 6,0 7,0 24,0 26,0 Cu 0,50 1,50
7
38 X1CrNiMoCuN24-22- 0,020 0,50 2,0 4,0 0,030 0,005 0,45 0,55 23,0 25,0 7,0 8,0 21,0 23,0 Cu 0,30 0,60
8
39 X8CrMnNiN18-9-5 0,05 0,10 0,30 0,60 9,0 10,0 0,035 0,030 0,25 0,32 17,5 18,5 0,50 5,0 6,0 Cu 0,40
40 X8CrMnCuN17-8-3 0,10 2,00 6,5 8,5 0,040 0,030 0,15 0,30 16,0 18,0 1,00 2,00 Cu 2,00 3,50
41 X1CrNiMoCuNW24- 0,020 0,70 2,0 4,0 0,030 0,010 0,35 0,50 23,0 25,0 5,5 6,5 21,0 23,0 Cu 1,00 2,00
22-6
          W 1,50 2,50
42 X2CrNiMnMoN25- 0,030 1,00 5,0 7,0 0,030 0,015 0,30 0,60 24,0 26,0 4,0 5,0 16,0 19,0 Nb 0,15
18-6-5
43 X11CrNiMnN19-8-6 0,07 0,15 0,50 1,00 5,0 7,5 0,030 0,015 0,20 0,30 17,5 19,5  6,5 8,5
44 X6CrNiCuS18-9-2 0,08 1,00 2,00 0,045 0,15  0,11 17,0 19,0 0,60 8,0 10,0 Cu 1,4 1,8
45 X6CrNiCu17-8-2 0,08 1,70 3,00 0,045 0,030  15,0 18,0  6,0 9,0 Cu 1,0 3,0
46 X12CrNiSi18-9-3 0,15 2,00 3,00 2,00 0,045 0,030  17,0 19,0  8,0 10,0

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ISO/TS 15510:2003(F)
4 © ISO 2003 — Tous droits réservés
Tableau 1 (suite)
Ligne C Désignation Si Mn P S N Cr Mo Ni Autres
de l'acier
min. max. min. max. min. max. max. min. max. min. max. min. max. min. max. min. max. Élément min. max.
b) Aciers austéno-ferritiques (Duplex)
d
51 X2CrNiN23-4 0,030 1,00 2,00 0,035 0,015 0,05 0,20 22,0 24,0 0,10 0,60 3,5 5,5 Cu 0,10 0,60
e
52 X2CrNiMoN22-5-3 0,030 1,00 2,00 0,035 0,015 0,10 0,22 21,0 23,0 2,5 3,5 4,5 6,5
53 X2CrNiMoCuN25- 0,030 0,70 2,00 0,035 0,015 0,15 0,30 24,0 26,0 2,5 4,0 5,0 7,5 Cu 1,00 2,50
6-3
d
54 X2CrNiMoN25-7-4 0,030 1,00 2,00 0,035 0,015 0,24 0,35 24,0 26,0 3,0 4,5 6,0 8,0
55 X3CrNiMoN27-5-2 0,050 1,00 2,00 0,035 0,015 0,05 0,20 25,0 28,0 1,30 2,00 4,5 6,5
56 X2CrNiMoCuWN25- 0,030 1,00 1,00 0,035 0,015 0,20 0,30 24,0 26,0 3,0 4,0 6,0 8,0 Cu 0,50 1,00
7-4
W 0,50 1,00
c) Aciers ferritiques
61 X2CrNi12 0,030 1,00 1,50 0,040 0,015 0,030 10,5 12,5  0,30 1,10
a
62 X2CrTi12 0,030 1,00 1,00 0,040 0,030 10,5 12,5  0,50 Ti 6 × (C+N) 0,65
f
63 X6CrTi12 0,08 1,00 1,00 0,040 0,030 10,5 12,5  0,50 Ti 6 × (C+N) 0,65
64 X6CrNiTi12 0,08 1,00 1,00 0,040 0,015  10,5 12,5  0,50 1,50 Ti 0,05 0,35
a
65 X6Cr13 0,08 1,00 1,00 0,040 0,030 11,5 14,0  0,75
a
66 X6CrAl13 0,08 1,00 1,00 0,040 0,030 11,5 14,0   Al 0,10 0,30

g a
67 X6Cr17 0,08 1,00 1,00 0,040 0,030 16,0 18,0
68 X7CrS17 0,09 1,50 1,50 0,040 0,15  16,0 18,0 0,60
a
69 X6CrMo17-1 0,08 1,00 1,00 0,040 0,030 16,0 18,0 0,90 1,40
a
70 X3CrTi17 0,05 1,00 1,00 0,040 0,030 16,0 19,0   Ti 4 × (C + N) + 0,20 0,75
71 X6CrMoNb17-1 0,08 1,00 1,00 0,040 0,015 0,040 16,0 18,0 0,80 1,40  Nb 5 × C 1,00
72 X2CrMoTi18-2 0,025 1,00 1,00 0,040 0,015 0,025 17,0 20,0 1,80 2,50  Ti+Nb 4 × (C + N) + 0,20 0,80
73 X3CrNb17 0,05 1,00 1,00 0,040 0,015  16,0 18,0   Nb 12 × C 1,00
74 X2CrMoTiS18-2 0,03 1,00 0,50 0,040 0,15  17,5 19,0 2,00 2,50  Ti 0,30 0,80
(C + N) 0,040

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ISO/TS 15510:2003(F)
© ISO 2003 — Tous droits réservés 5
Tableau 1 (suite)
Ligne C Désignation Si Mn P S N Cr Mo Ni Autres
de l'acier
min. max. min. max. min. max. max. min. max. min. max. min. max. min. max. min. max. Élément min. max.
d) Aciers martensitiques
81 X3CrNiMo13-4 0,05 0,70 0,50 1,00 0,040 0,015  12,0 14,0 0,30 1,00 3,5 4,5
a
82 X12Cr13 0,08 0,15 1,00 1,50 0,040 0,030 11,5 13,5  0,75
83 X12CrS13 0,08 0,15 1,00 1,50 0,040 0,15  12,0 14,0 0,60
a
84 X20Cr13 0,16 0,25 1,00 1,50 0,040 0,030 12,0 14,0
a
85 X30Cr13 0,26 0,35 1,00 1,50 0,040 0,030 12,0 14,0
a
86 X39Cr13 0,36 0,42 1,00 1,00 0,040 0,030 12,5 14,5
a
87 X46Cr13 0,43 0,50 1,00 1,00 0,040 0,030 12,5 14,5
a
88 X52Cr13 0,48 0,55 1,00 1,00 0,040 0,030 12,5 14,5
a
89 X60Cr13 0,56 0,65 1,00 1,00 0,040 0,030 12,5 14,5
90 X14CrS17 0,10 0,17 1,00 1,50 0,040 0,15  16,0 18,0 0,60
91 X17CrNi16-2 0,12 0,22 1,00 1,50 0,040 0,030  15,0 17,0  1,50 2,50
92 X39CrMo17-1 0,33 0,45 1,00 1,50 0,040 0,015  15,5 17,5 0,80 1,30 1,00
93 X105CrMo17 0,95 1,20 1,00 1,00 0,040 0,015  16,0 18,0 0,40 0,80

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ISO/TS 15510:2003(F)
6 © ISO 2003 — Tous droits réservés
Tableau 1 (suite)
Ligne C Désignation Si Mn P S N Cr Mo Ni Autres
de l'acier
min. max. min. max. min. max. max. min. max. min. max. min. max. min. max. min. max. Élément min. max.
e) Aciers à durcissement par précipitation
a
101 X5CrNiCuNb16-4 0,07 0,70 1,50 0,040 0,030 15,0 17,0 0,60 3,0 5,0 Cu 3,0 5,0
Nb 5 × C 0,45
h
102 X7CrNiAl17-7 0,09 0,70 1,00 0,040 0,015  16,0 18,0  6,5 7,8 Al 0,70 1,50
103 X8CrNiMoAl15-7-2 0,10 0,70 1,20 0,040 0,015  14,0 16,0 2,00 3,00 6,5 7,8 Al 0,75 1,50
a
Une teneur en soufre particulière peut améliorer certaines propriétés. Pour l'usinabilité, une teneur en soufre contrôlée de 0,015 % à 0,030 % est recommandée. Pour la soudabilité, une teneur en soufre contrôlée de
0,008 % à 0,020 % peut s'avérer bénéfique. Pour l'aptitude au polissage, une teneur en soufre contrôlée de 0,015 % au maximum est recommandée.
b
Si, pour des raisons particulières (par exemple un travail à chaud ou une faible perméabilité magnétique), il est nécessaire de réduire au minimum la teneur en ferrite, la teneur maximale en nickel peut être augmentée
comme suit:
de 0,50 % pour les aciers des lignes 1 et 32;
de 1,00 % pour les aciers des lignes 2, 16, 17, 19, 20, 25, 26, 27 et 31;
de 1,50 % pour les aciers des lignes 21 et 22.
c
Il est possible d'ajouter jusqu'à 1,00 % de cuivre. Le cas échéant, le fait doit être rapporté dans le document de contrôle, à condition qu'un tel document ait été prescrit.
d
Nuance brevetée.
e
Pour des applications particulières, les valeurs inférieures de N, Cr et Mo peuvent être limitées à 0,14 %, 22,0 % et 3,0 %.
f
Si l'usinabilité revêt une importance particulière, une augmentation de la teneur en soufre jusqu'à 0,045 % est recommandée et autorisée.
g
Pour certaines applications, telles que par exemple la soudabilité ou un fil à résistance élevée, une teneur maximale en C de 0,12 % peut être acceptée.
h
Par accord spécial, l'acier destiné à être déformé à froid peut également être commandé avec une teneur en Ni de 7,00 % à 8,30 %.

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ISO/TS 15510:2003(F)
© ISO 2003 — Tous droits réservés 7
Tableau 2 — Désignations des aciers donnés dans le Tableau 1 et des nuances comparables traitées dans diverses normes
et divers systèmes de classification internationaux, régionaux ou nationaux
a
Désignation de l'acier selon
Ligne Tableau 1 ASTM A EN 10088-1:1995  ISO ISO
b
959/UNS 683-13: 683-16: ISO 4954:1993 ISO 4955:1994 ISO 6931-1:1994 ISO 6931-2:1989 ISO 9328-5:1991
c c d e
Symbole Numéro JIS CSN
1986 1976
a) Aciers austénitiques
1 X2CrNi18-9 S30403 X2CrNi18-9 1.4307 SUS304L — 10 — X2CrNi18 10E — — — X2CrNi18-10
2 X2CrNi19-11 S30403 X2CrNi19-11 1.4306 SUS304L 17249 — — — — — — —
3 X2CrNiN18-9 S30453 X2CrNiN18-10 1.4311 SUS304LN — 10N — — — — — X2CrNiN18-10
4 X2CrNiN18-7 S30153 X2CrNiN18-7 1.4318 SUS301L — — — — — — — —
5 X5CrNi17-7 S30100 (X3CrNiN17-8) (1.4319) SUS301 — — — — — — — —
6 X5CrNi18-9 S30400 X5CrNi18-10 1.4301 SUS304 17240 11 — X5CrNi18 9E — — X5CrNi18 10 X5CrNi18-9
7 X7CrNi18-9 S30409 (X6CrNi18-10) (1.4948) SUS304H — — — — X7CrNi18 9 — — X7CrNi18-9
8 X6CrNi18-12 S30500 X4CrNi18-12 1.4303 SUS305 — 13 — X5CrNi18 12E — — — —
9 X3NiCr18-16 S38400 — — SUS384 — — — X6NiCr18 16E — — — —
10 X5CrNiN18-8 S30451 (X5CrNiN19-9) (1.4315) SUS304N1 — — — — — — — —
11 X10CrNi18-8 S30100 X10CrNi18-8 1.4310 — — 14 — — — X9CrNi18-8 X12CrNi17 7 —
12 X1CrNi25-21 S31002 X1CrNi25-21 1.4335 — — — — — — — — —
13 X12CrMnNiN17-7-5 S20100 X12CrMnNiN17-7-5 1.4372 SUS201 — A-2 — — — — — —
14 X10CrNiS18-9 S30300 X8CrNiS18-9 1.4305 SUS303 — 17 — — — — — —
15 X3CrNiCu18-9-4 S30430 X3CrNiCu18-9-4 1.4567 SUSXM7 — — — X3CrNiCu18 9 3E — — — —
16 X6CrNiTi18-10 S32100 X6CrNiTi18-10 1.4541 SUS321 17247 15 — X6CrNiTi18 10E — — — X6CrNiTi18-10
17 X7CrNiTi18-10 S32109 X6CrNiTi18-10 1.4541 SUS321H — — — — X7CrNiTi18 10 — — X7CrNiTi18-10
18 X6CrNiTiB18-10 — (
...

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