technical isorm report 15510iso 6929: 1987, see/ products - definitions and classifica tion. 3...
TRANSCRIPT
TECHNICAL REPORT
ISOrm 15510
First edition 1997-11-01
Stainless steels - Chemical composition
Aciers inoxysiables - Composition chimique
Reference number ISO/TR 15510: 1997(E)
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ISO/TR 15510:1997(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. Esch 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.
The main task of technical committees is to prepare International Standards, but in exceptional circumstances a technical committee may propose the publication of a Technical Report of one of the following types:
- type 1 J when the required support cannot be obtained for publicati on of a n Inte rnational Standard, despite repeated efforts;
the
- type 2, when the subject is still under technical development or where for any other reason there is the future but not immediate possibility of an agreement on an International Standard;
- type 3, when a technical committee has collected data of a different kind from that which is normally published as an International Standard (“state of the art”, for example).
Technical Reports of types 1 and 2 are subject to review within three years of publication, to decide whether they tan be transformed into International Standards. Technical Reports of type 3 do not necessarily have to be reviewed until data they provide are considered to be no longer valid or useful.
ISO/TR 15510, which is a Technical Report of type 2, was prepared by Technical Committee ISOTTC 17, Steel, Subcommittee SC 4, Heat treatable and alloy steels.
0 ISO 1997 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronie or mechanical, including photocopying and microfilm, without Permission in writing from the publisher.
International Organization for Standardization Case postale 56 l CH-121 1 Geneve 20 l Switzerland Internet central @ iso.ch x.400 c=ch; a=400net; p=iso; o=isocs; s=central
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@ ISO ISO/TR 15510:1997(E)
This document is being issued in the Technical Report (type 2) series of publications (according to subclause G.3.2.2 of part 1 of the ISO/IEC Directives, 1995) as a “prospective Standard for provisional application” in the field of Chemical composition of stainless steels because there is an urgent need for guidance on how Standards in this field should be used to meet an identified need.
This document is not to be regarded as an “International Standard”. It is proposed for provisional application so that information and experience of its use in practice may be gathered. Comments on the content of this document should be sent to the ISO Central Secretariat.
Annexes A and B of this Technical Report are for information only.
. . . Ill
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Introduction
In 1991 ISO/TC 17/SC 4 considered it useful to prepare an International Standard for the Chemical composition of stainless steels to which those ISO Standards with technical delivery conditions for the various stainless steel products (wire, tubes, forgings etc.) and for the various applications (general, pressure purposes etc.) could refer. During the discussions on such a Standard it became obvious that, in spite of the existing ISO Standards with technical delivery conditions for stainless steels, the Chemical compositions and also the mechanical properties specified in the frequently applied national and regional Standards showed many technically unjustified or questionable differentes. For the elimination of such differentes intensive negotiations were initiated between experts on stainless steel of the following organizations:
- the American Society for Testing and Materials (ASTM)
- the European Committee for Iron and Steel Standardization (ECISS) and
- the Japanese Industrial Standards Committee (JISC)
On the basis of these negotiations ISO/TC 17/SC 4 agreed on the Chemical compositions given in table 1 and its members promised to undertake all efforts for the implementation of these specifications in their national Standards.
However
- only Japan and a minority of the ECISS members declared themselves prepared to take over the specifications given in table 1 in their Standards and only when those compositions were approved for ISO Standards;
- a majority of the ECISS-members favoured, when discussing the corresponding European Standard (EN 10088-l), a number of more or less important deviations from the specifications given in table 1;
- ASTM concentrates its efforts on the preparation of a similar national Standard but sees for the near future no possibility of implementing the specifications given in table 1 or making constructive proposals for their amendment.
In view of this ISOKC 17/SC 4 regards it as impossible to bring its attempts for worldwide harmonization of stainless steel specifications to a satisfactory end in the near future. Nevertheless, the data compiled during these negotiations and the specifications proposed by the committee may be useful within work on national or regional Standards or when, perhaps at a later date, within ISO, the international harmonization efforts are taken up again. Therefore, the relevant data and results are published in this ISO Technical Report.
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~~
TECHNICAL REPORT @ ISO ISOTTR 15510:1997(E)
Stainless steels - Chemical composition
1 Scope
This ISO Technical Report lists the Chemical compositions of stainless steels agreed by ISO/TC 17/SC 4 mainly on the basis of a comparison 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 reference
The following Standard contains provisions which, through reference in this text, constitute provisions of this Technical Report. At the time of publication, the edition indicated was valid. All Standards are subject to revision, and Parties to agreements based on this Technical Report are encouraged to investigate the possibility of applying the most recent edition of the Standard indicated below. Members of IEC and ISO maintain registers of currently valid International Standards.
ISO 6929: 1987, See/ products - Definitions and classifica tion.
3 Definitions
For the purposes of this Technical Report the following definition, as weil as those given in ISO 6929, applies.
3.1 Stainless steel
Steel with at least IO,5 % Cr and maximum 1,2 % C are considered as stainless steels if their resistance to corrosion is of primary importante.
NOTES
1 It is intended to also include in this Technical Report, at a later Stage, creep resisting and heat resisting steel grades.
2 For the classification of stainless steels according to their structure, composition and application see annex A.
1
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4 Chemical composition
The chemical composition of stainless steels approved by ISO TC 17/SC 4 is given in table 1 n
NOTE - lf, in special cases, for example an ISO committee charged with the establishment or revision of 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, D-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 Designations 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 - lt is expected that the compositions specified in these other Standards or designation Systems will, in the near future, be aligned with those in table 1. (See Introduction.)
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Line
St
eel
desi
gnat
ion
c Si
M
n P
S N
Cr
M
o Ni
O
ther
s
min
. m
ax.
max
. m
in.
max
. m
ax.
min
. m
ax.
min
. m
ax.
min
. m
ax.
min
. m
ax.
min
. m
ax.
Elem
ent
min
. m
ax.
I a)
Au
sten
itic
stee
ls
28
X6Cr
NiM
oTi1
7-12
-2
29
XGCr
NiM
oNbl
7-12
-2
30
X1Cr
NiM
oCuN
20-1
8-74
)
31
XlNi
CrM
oCu2
5-20
-5
32
XlNi
CrM
oCuN
25-2
0-7
0,08
l,o
o 2,
00
0,04
5 1)
16
,50
18,5
0 2,
00
2,50
IO
,50
13,5
0 2,
Ti
5xc
0,60
0,08
l,o
o 2,
00
0,04
5 1'
16
,50
18,5
0 2,
00
2,50
IO
,50
13,5
0 N
b IO
XC
l,oo
0,02
0 0,
70
l,oo
0,03
5 0,
015
0,18
0,
25
19,5
0 20
,50
6,00
7,
00
17,5
0 18
,50
Cu
0,50
l,o
o
0,02
0 0,
75
2,00
0,
035
0,01
5 0,
15
19,0
0 22
,00
4,00
5,
oo
23,5
0 26
,00
Cu
1,20
2,
00
0,02
0 0,
75
2,00
0,
035
0,01
5 0,
15
0,25
19
,00
21,0
0 6,
00
7,00
24
,00
26,0
0 C
u 0,
50
1,50
.
r- b) Au
sten
itic-
ferri
tic
stee
ls
L
33
X2Cr
NiM
oN22
-5-3
0,
030
l,oo
2,00
0,
035
0,01
5 0,
lO
0,22
21
,00
23,0
0 2,
50
3,50
4,
50
6,50
34
X2Cr
NiM
oCuN
25-6
-3
0,03
0 0,
70
2,00
0,
035
0,01
5 0,
15
0,30
24
,00
26,0
0 2,
50
4,00
5,
00
7,50
C
u l,o
o 2,
50
c)
Ferr
itic
stee
ls
35
X2Cr
Ni12
36
X2Cr
Ti12
37
X6Cr
Ti12
~~~
0,03
0 1 ,
oo
1,50
0,
040
0,01
5 0,
030
IO,5
0 12
,50
0,30
',I
O
0,03
0 l,o
o l,o
o 0,
040
1'
IO,5
0 12
,50
0,50
Ti
G
x(C+
N)
0,65
0,08
l,o
o l,o
o 0,
040
0,03
0 IO
,50
12,5
0 0,
50
Ti
Gx(
C+N)
0,
65
5)
38
X6Cr
NiTi
12
39
XGCr
l3
40
XGCr
AI13
41
XGCr
l7
42
X7Cr
S17
43
X6Cr
Mo1
7-1
44
X3Cr
Ti17
45
XGCr
MoN
bl7-
1
46
X2Cr
MoT
i18-
2
d)
Mar
tens
itic
stee
ls
0,08
l,o
o l,o
o 0,
040
0,01
5 IO
,50
12,5
0 0,
50
1,50
Ti
0,
05
0,35
0,08
l,o
o l,o
o 0,
040
1)
11,5
0 14
,00
0,75
0,08
l,o
o l,o
o 0,
040
1'
11,5
0 14
,00
Al
0,lO
0,
30
0,08
6,
l,oo
l,oo
0,04
0 1)
16
,00
18,0
0
0,09
1,
50
1,50
0,
040
0,15
16
,00
18,0
0 0,
60
0,08
l,o
o l,o
o 0,
040
1)
16,0
0 18
,00
0,90
1,
40
0,05
l,o
o l,o
o 0,
040
1)
16,0
0 19
,00
Ti
4x(C
+N)+
0,
20
0,75
0,08
l,o
o l,o
o 0,
040
0,01
5 0,
040
16,0
0 18
,00
0,80
1,
40
Nb
5xc
l,oo
0,02
5 l,o
o l,o
o 0,
040
0,01
5 0,
025
17,0
0 20
,oo
1,80
2,
50
Ti+N
b 4x
(C+N
) +
0,20
0,
80
I 47
48
49
50
X3Cr
NiM
o13-
4
X12C
r13
X12C
rS13
X20C
r13
0,05
0,
70
0,50
l,o
o 0,
040
0,01
5 12
,00
14,0
0 0,
30
l,oo
3,50
4,
50
0,08
0,
15
l,oo
1,50
0,
040
1)
11,5
0 13
,50
0,75
0,08
0,
15
l,oo
1,50
0,
040
0,15
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STA
ND
AR
D P
REV
IEW
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ndar
ds.it
eh.a
i)IS
O/T
R 15
510:1
997
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://stan
dard
s.iteh
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talog
/stan
dard
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/ad9e
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tr-15
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1997
I Lin
e I
Stee
l de
sign
atio
n I
C I
si I
min
. m
ax.
max
. m
iti.
IlldX
. Ill
dX.
IIldX
. llll
il. 11
IdA.
11
1111
. f
I laA
. llll
ll. I
I laA
. llll
ll. I
I LI
CIIIG
I IL
rr1
111.
51
X30C
r13
0,26
0,
35
l,oo
1,50
0,
040
1'
12,0
0 14
,00
52
X39C
r13
0,36
0,
42
l,oo
l,oo
0,04
0 1'
12
,50
14,5
0
53
X46C
r13
0,43
0,
50
1,oo
l,o
o 0,
040
1)
12,5
0 14
,50
54
X52C
r13
0,48
0,
55
l,oo
l,oo
0,04
0 1)
12
,50
14,5
0
55
X60C
r13
0,56
0,
65
l,oo
l,oo
0,04
0 1)
12
,50
14,5
0
56
X14C
rMoS
17
0,lO
0,
17
l,oo
1,50
0,
040
0,15
16
,00
18,0
0 0,
60
57
X17C
rNi1
6-2
0,12
0,
22
l,oo
1,50
0,
040
0,03
0 15
,00
17,0
0 1,
50
2,50
1 e)
Prec
ipita
tion
hard
enin
g st
eels
I
58
X5Cr
NiCu
Nbl6
-4
0,07
0,
70
1,50
0,
040
1)
15,o
o 17
,00
0,60
3,
00
5,00
Cu
3,
00
5,00
Nb
5x
c 0,
45
59
X7Cr
NiAl
17-7
0,
09
0,70
l,o
o 0,
040
0,01
5 16
,00
18,0
0 6,
50
7,80
')
Al
0,70
1,
50
60
X8Cr
NiM
oAll5
-7-2
0,
lO
0,70
1,
20
0,04
0 0,
015
14,0
0 16
,Oö
2,00
3,
00
6,50
7,
80
Al
0,75
1,
50
1)
For
prod
ucts
ot
her
than
fla
t pr
oduc
rs,
a Su
lfur
cont
ent
of m
axim
um
0,03
0 %
app
lies,
un
less
ot
herw
ise
agre
ed
(see
no
te
1).
For
flat
prod
ucts
, a
max
imum
Su
lfur
cont
ent
of 0
,015
%
app
lies,
un
less
ot
herw
ise
agre
ed.
Spec
ially
ag
reed
lim
its
may
inc
lude
a
max
imum
Su
lfur
cont
ent
of u
p to
0,0
30
% (
see
note
s 1
and
2).
NOTE
1
For
mac
hina
bilit
y,
a co
ntro
lled
Sulfu
r co
nten
t of
0,0
15
% t
o 0,
030
% i
s re
com
men
ded
and
perm
itted
.
NOTE
2
For
weld
abilit
y,
a m
inim
um
Sulfu
r co
nten
t of
abo
ut
0,00
8 %
may
be
bene
ficia
l.
2)
Whe
re,
for
spec
ial
reas
ons,
(e
.g.,
hot
work
abili
ty
or l
ow m
agne
tic
perm
eabi
lity)
, it
is ne
cess
ary
to m
inim
ize
the
ferri
te
cont
ent,
the
max
imum
ni
cke1
con
tent
m
ay
be
incr
ease
d by
the
fol
lowi
ng
amou
nts:
- by
0,5
0 %
for
ste
els
in li
nes
1 an
d 28
;
- by
1,0
0 %
for
ste
els
in li
nes
2, 1
5, 1
6, 1
7, 1
8, 2
2, 2
3, 2
4 an
d 27
;
- by
1,5
0 %
for
ste
els
in li
nes
19 a
nd 2
0.
3)
Copp
er
may
be
adde
d up
to
1,00
%.
If ad
ded,
it
mus
t be
rep
orte
d in
the
ins
pect
ion
docu
men
t, pr
ovid
ed
such
a d
ocum
ent
has
been
or
dere
d.
4)
Pate
nted
gr
ade.
5)
Whe
re
mac
hina
bilit
y is
of s
peci
al
impo
rtant
e in
crea
sed
Sulfu
r co
nten
ts
of u
p to
0,0
45
% a
re r
ecom
men
ded
and
perm
itted
.
6)
For
certa
in
appl
icat
ions
, e.
g. w
elda
bilit
y or
hig
h st
reng
th
wire
, a
max
imum
of
0,1
2 %
C m
ay b
e ag
reed
.
7)
By s
peci
al
agre
emen
t, th
e st
eel
when
in
tend
ed
for
cold
def
orm
atio
n m
ay a
lso
be o
rder
ed
with
7,0
0 %
to
8,30
% N
i.
Ul
iTeh
STA
ND
AR
D P
REV
IEW
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ndar
ds.it
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i)IS
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26
X%rN
iMol
7-12
-2
S316
00
XSCr
NiM
ol7-
12-2
1.
4401
SU
S316
17
346
20
27
X5Cr
NiM
o17-
12-3
S3
1600
X3
CrNi
Mol
7-13
-3
1.44
36
SUS3
16
1735
2 20
a
28
X6Cr
NiM
oTi1
7-12
-2
S316
35
X6Cr
NiM
oTi1
7-12
-2
1.45
71
SUS3
16Ti
17
348
21
29
X6Cr
NiM
oNbl
7-12
-2
S316
40
X6Cr
NiM
oNbl
7-12
-2
1.45
80
- -
23
30
XlCr
NiM
oCuN
20-1
8-7
S312
54
XlCr
NiM
oCuN
20-1
8-7
1.45
47
- -
-
- X5
CrNi
Mo1
7 12
2E
- X%
rNiM
ol7-
12-2
X6Cr
NiM
ol7-
12-2
X5
CrNi
Mo1
7-12
- -
- -
- X5
CrNi
Mol
7-13
- X6
CrNi
MoT
i17
12 2
E -
- -
X6Cr
NiM
oTi
17-1
2
- -
- -
- X6
CrNi
MoN
bl7-
12
- -
- -
- -
31
Xl N
iCrM
oCu2
5-20
-5
NO89
04
Xl N
iCrM
oCu2
5-20
-5
1.45
39
SUS8
9OL
- A-
4 -
32
XlNi
CrM
oCuN
25-2
0-7
NO89
26
XlNi
CrM
oCuN
25-2
0-7
1.45
29
- -
- -
- -
- -
- -
- -
X2Ni
CrM
oCu2
5-20
-5
-
b)
Aust
eniti
c-fe
rritic
st
eels
33
X2Cr
NiM
oN22
-5-3
S3
1803
X2
CrNi
MoN
22-5
-3
1.44
62
SUS3
29J3
L -
- -
- -
- -
-
34
X2Cr
NiM
oCuN
25-6
-3
S325
50
X2Cr
NiM
oCuN
25-6
-3
1.45
07
SUS3
29J4
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41-I-
I-I-1
-
I -
I -
I -
I -
I
m
iTeh
STA
ND
AR
D P
REV
IEW
(sta
ndar
ds.it
eh.a
i)IS
O/T
R 15
510:1
997
https
://stan
dard
s.iteh
.ai/ca
talog
/stan
dard
s/sist
/ad9e
3458
-804
4-47
57-8
3c7-
0400
6e9b
bb49
/iso-
tr-15
510-
1997