ISO/TR 20172:2006

TECHNICAL ISO/TR
REPORT 20172
First edition
2006-02-01

Welding — Grouping systems for
materials — European materials
Soudage — Systèmes de groupement des matériaux — Matériaux
européens




Reference number
ISO/TR 20172:2006(E)
©
ISO 2006

---------------------- Page: 1 ----------------------
ISO/TR 20172:2006(E)
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but
shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In
the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.


©  ISO 2006
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland

ii © ISO 2006 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/TR 20172:2006(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope. 1
2 International grouping system for European materials. 2
2.1 Types of steel in accordance with the grouping system of ISO/TR 15608:2005, Table 1 . 2
2.2 Types of aluminium and aluminium alloy in accordance with the grouping system of
ISO/TR 15608:2005, Table 2 . 18
2.3 Types of copper and copper alloy in accordance with the grouping system of
ISO/TR 15608:2005, Table 3 . 22
2.4 Types of cast iron in accordance with the grouping system of ISO/TR 15608:2005, Table 7 . 24
Bibliography . 27

© ISO 2006 – All rights reserved iii

---------------------- Page: 3 ----------------------
ISO/TR 20172:2006(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 exceptional circumstances, 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), it may decide by a
simple majority vote of its participating members to publish a Technical Report. A Technical Report is entirely
informative in nature and does not have to be reviewed until the data it provides are considered to be no
longer valid or useful.
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/TR 20172 was prepared by the European Committee for Standardization (CEN) Technical Committee
CEN/TC 121, Welding, in collaboration with Technical Committee ISO/TC 44, Welding and allied processes,
Subcommittee SC 10, Unification of requirements in the field of metal welding, in accordance with the
Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
iv © ISO 2006 – All rights reserved

---------------------- Page: 4 ----------------------
ISO/TR 20172:2006(E)
Introduction
This Technical Report reflects the situation as of June 2004. Changes in European material standards will be
taken into account at the next revision of this Technical Report.

© ISO 2006 – All rights reserved v

---------------------- Page: 5 ----------------------
TECHNICAL REPORT ISO/TR 20172:2006(E)

Welding — Grouping systems for materials — European
materials
1 Scope
This Technical Report provides a European grouping system for materials for welding purposes, classified in
accordance with the grouping system of ISO/TR 15608.
It may also apply for other purposes as heat treatment, forming, non destructive testing. Types of steels in
accordance with the grouping system of ISO/TR 15608:2005, Table 1.
This Technical Report covers grouping systems for the following standardized materials:
⎯ steel;
⎯ aluminium and its alloys;
⎯ copper and its alloys;
⎯ cast iron.

© ISO 2006 – All rights reserved 1

---------------------- Page: 6 ----------------------
ISO/TR 20172:2006(E)
2 International grouping system for European materials
2.1 Types of steel in accordance with the grouping system of ISO/TR 15608:2005, Table 1
See Table 1.
Table 1 — Steel materials
Group Reference Designation
standard Name Number
S235JR 1.0037
S235JRG1 1.0036
S235JRG2 1.0038
S235JO 1.0114
S235J2G3 1.0116
S235J2G4 1.0117
S235J2G3C 1.0118
EN 10025-2
S235J2G4C 1.0119
S275JR 1.0044
S275JO 1.0143
S275J2G3 1.0144
S275J2G4 1.0145
1.1
S275J2G3C 1.0141
S275J2G4C 1.0142
P235GH 1.0345
EN 10028-2
P265GH 1.0425
P275N 1.0486
P275NH 1.0487
EN 10028-3
P275NL1 1.0488
P275NL2 1.1104
S275N 1.0486
EN 10113-2
S275NL 1.0488
S275M 1.8818
EN 10113-3
S275ML 1.8819

2 © ISO 2006 – All rights reserved

---------------------- Page: 7 ----------------------
ISO/TR 20172:2006(E)
Table 1 (continued)
Group Reference Designation
standard Name Number
EN 10120 P245NB 1.0111
P265NB 1.0423
EN 10149-3
S260NC 1.0971
P235S 1.0112
EN 10207
P265S 1.0130
P275SL 1.1100
L210GA 1.0319
EN 10208-1
L235GA 1.0458
L245GA 1.0459
L245NB 1.0457
EN 10208-2
L245MB 1.0418
16Mo3 1.5415
S235JRH 1.0039
S275JOH 1.0149
EN 10210-1
S275J2H 1.0138
S275NH 1.0493
S275NLH 1.0497
GP240GR 1.0621
EN 10213-2
GP240GH 1.0619
EN 10213-3 G17Mn5 1.1131
1.1
P195TR1 1.0107
P195TR2 1.0108
EN 10216-1 P235TR1 1.0254
P235TR2 1.0255
P265TR1 1.0258
S235JRH 1.0039
S275JOH 1.0149
S275J2H 1.0138
EN 10219-1 S275NH 1.0493
S275NLH 1.0497
S275MH 1.8843
S275MLH 1.8844
L235 1.0252
EN 10224
L275 1.0260
S240GP 1.0021
EN 10248-1
S270GP 1.0023
P195GH 1.0348
P235GH 1.0345
EN 10216-2
P265GH 1.0425
16Mo3 1.5415
© ISO 2006 – All rights reserved 3

---------------------- Page: 8 ----------------------
ISO/TR 20172:2006(E)
Table 1 (continued)
Group Reference Designation
standard Name Number
P275NL1 1.0488
EN 10216-3
P275NL2 1.1104
P195TR1 1.0107
P195TR2 1.0108
P235TR1 1.0254
EN 10217-1
P235TR2 1.0255
P265TR1 1.0258
P265TR2 1.0259
P195GH 1.0348
P235GH 1.0345
EN 10217-2
P265GH 1.0425
1.1
16Mo3 1.5415
P275NL 1 1.0488
EN 10217-3
P275NL2 1.1104
P215NL 1.0451
EN 10217-4
P265NL 1.0453
P235GH 1.0345
EN 10217-5 P265GH 1.0425
16Mo3 1.5415
P215NL 1.0451
EN 10217-6
P265NL 1.0453
S355JR 1.0045
S355JO 1.0553
S355J2G3 1.0570
1.2 EN 10025
S355J2G4 1.0577
S355K2G3 1.0595
S355K2G4 1.0596
S355J2G3C 1.0569

4 © ISO 2006 – All rights reserved

---------------------- Page: 9 ----------------------
ISO/TR 20172:2006(E)
Table 1 (continued)
Group Reference Designation
standard Name Number
S355J2G4C 1.0579

S355K2G3C 1.0593
S355K2G4C 1.0594
P295GH 1.0481
EN 10028-2
P355GH 1.0473
P355N 1.0562
P355NH 1.0565
EN 10028-3
P355NL1 1.0566
P355NL2 1.1106
P355M 1.8821
EN 10028-5 P355ML1 1.8832
P355ML2 1.8833
S355N 1.0562
EN 10113-2
S355NL 1.0566
S355M 1.8823
EN 10113-3
S355ML 1.8834
P310NB 1.0437
EN 10120
P355NB 1.0557
S315MC 1.0972
1.2 EN 10149-2
S355MC 1.0976
S315NC 1.0973
EN 10149-3
S355NC 1.0977
L290GA 1.0483
EN 10208-1
L360GA 1.0499
L290NB 1.0484
L290MB 1.0429
EN 10208-2 L360NB 1.0582
L360MB 1.0578
L360QB 1.0590
S355JOH 1.0547
S355J2H 1.0576
S355NH 1.0539
EN 10210-1
S355NLH 1.0549
S460NH 1.8953
S460NLH 1.8956
EN 10213-2 GP280GH 1.0625
G20Mn5 1.6220
EN 10213-3
G18Mo5 1.5422
© ISO 2006 – All rights reserved 5

---------------------- Page: 10 ----------------------
ISO/TR 20172:2006(E)
Table 1 (continued)
Group Reference Designation
standard Name Number
S355JOH 1.0547
S355J2H 1.0576
S355NH 1.0539
S355NLH 1.0549
EN 10219-1
S355MH 1.8845
S355MLH 1.8846
S460NH 1.8953
S460NLH 1.8956
P355Q 1.8866
P355QH 1.8867
EN 10028-6
P355QL1 1.8868
P355QL2 1.8869
EN 10224 L355 1.0419
S355N1 —
S355N2 —
S355M1 —
S355M2 —
1.2
EN 10225
S355N3 —
S355M3 —
S355N3Z —
S355M3Z —
S320GP 1.0046
EN 10248-1
S355GP 1.0083
P285NH 1.0477
P285QH 1.0478
EN 10222-4
P355NH 1.0565
P355QH 1.0571
EN 10216-2 20MnNb6 1.0471
P355N 1.0562
P355NH 1.0565
EN 10216-3
P355NL 1 1.0566
P355NL2 1.1106



6 © ISO 2006 – All rights reserved

---------------------- Page: 11 ----------------------
ISO/TR 20172:2006(E)
Table 1 (continued)
Group Reference Designation
standard Name Number
P355N 1.0562
P355NH 1.0565
1.2 EN 10217-3
P355NL 1 1.0566
P355NL2 1.1106
P460N 1.8905
P460NH 1.8935
EN 10028-3
P460NL1 1.8915
P460NL2 1.8918
S420N 1.8902
S420NL 1.8912
EN 10113-2
S460N 1.8905
S460NL 1.8915
EN 10149-3 S420NC 1.0981
EN 10208-2 L415NB 1.8972

1.3
EN 10216-2 8MoB5-4 1.5450
P460N 1.8905
P460NH 1.8935
EN 10216-3
P460NL1 1.8915
P460NL2 1.8918
P460N 1.8905
P460NH 1.8935
EN 10217-3
P460NL 1 1.8915
P460NL2 1.8918
S390GP 1.0522
EN 10248-1
S430GP 1.0523
© ISO 2006 – All rights reserved 7

---------------------- Page: 12 ----------------------
ISO/TR 20172:2006(E)
Table 1 (continued)
Group Reference Designation
standard Name Number
S235J0W 1.8958
S275J2W 1.8961
S355J0W 1.8959
1.4 EN 10155 S355J2G1W 1.8963
S355J2G2W 1.8965
S355K2G1W 1.8966
S355K2G2W 1.8967
P420M 1.8824
P420ML1 1.8835
P420ML2 1.8828
2.1 EN 10028-5
P460M 1.8826
P460ML1 1.8837
P460ML2 1.8831
S420M 1.8825
S420ML 1.8836
EN 10113-3
S460M 1.8827
S460ML 1.8838
S420MC 1.0980
EN 10149-2
S460MC 1.0982
2.1 L415MB 1.8973
EN 10208-2
L450MB 1.8975
S420MH 1.8847
S420MLH 1.8848
EN 10219-1
S460MH 1.8849
S460MLH 1.8850
EN 10222-4 P420NH
1.8932
S550MC 1.0986
S600MC 1.8969
2.2 EN 10149-2
S650MC 1.8976
S700MC 1.8974

8 © ISO 2006 – All rights reserved

---------------------- Page: 13 ----------------------
ISO/TR 20172:2006(E)
Table 1 (continued)
Group Reference Designation
standard Name Number
L485MB 1.8977
2.2 EN 10208-2
L555MB 1.8978
P460Q 1.8870
P460QH 1.8871
P460QL1 1.8872
P460QL2 1.8864
EN 10028-6
P500Q 1.8873
P500QH 1.8874
P500QL1 1.8875
P500QL2 1.8865
S460Q 1.8908
S460QL 1.8906
S460QL1 1.8916
S500Q 1.8924
EN 10137-2 S500QL 1.8909
S500QL1 1.8984
S550Q 1.8904
3.1 S550QL 1.8926
S550QL1 1.8986
L415QB 1.8947
L450QB 1.8952
EN 10208-2
L485QB 1.8955
L550QB 1.8957
EN 10222-4 P420QH 1.8936
EN 10213-2 G20Mo5 1.5419
P500Q 1.8873
P500QH 1.8874
P500QL1 1.8875
P500QL2 1.8865
EN 10028-6
P690Q 1.8879
P690QH 1.8880
P690QL1 1.8881
P690QL2 1.8888
© ISO 2006 – All rights reserved 9

---------------------- Page: 14 ----------------------
ISO/TR 20172:2006(E)
Table 1 (continued)
Group Reference Designation
standard Name Number
S620Q 1.8914
S620QL 1.8927
S620QL1 1.8987
3.1 EN 10137-2
S690Q 1.8931
S690QL 1.8928
S690QL1 1.8988
25CrMo4 1.7218
EN 10216-2
20CrMoV13-5-5 1.7779
P620Q 1.8876
P620QH 1.8877
3.1 P620QL 1.8890
EN 10216-3
P690Q 1.8879
P690QH 1.8880
P690QL 1 1.8881
P690QL2 1.8888
S890Q 1.8940
S890QL 1.8983
3.2 EN 10137-2 S890QL1 1.8925
S960Q 1.8941
S960QL 1.8933
S500A 1.8980
S500AL 1.8990
S550A 1.8991
S550AL 1.8992
3.3 EN 10137-3
S620A 1.8993
S620AL 1.8994
S690A 1.8995
S690AL 1.8996
EN 10028-2 13CrMo4-5 1.7335
EN 10222-2 13CrMo4-5 1.7335
G17CrMo5-5 1.7357
5.1 EN 10213-2
G17CrMoV5-10 1.7706
10CrMo5-5 1.7338
EN 10216-2
13CrMo4-5 1.7335

10 © ISO 2006 – All rights reserved

---------------------- Page: 15 ----------------------
ISO/TR 20172:2006(E)
Table 1 (continued)
Group Reference Designation
standard Name Number
10CrMo9-10 1.7380
EN 10028-2
11CrMo9-10 1.7383
EN 10213-2 G17CrMo9-10 1.7379
5.2
EN 10222-2 11CrMo9-10 1.7383
10CrMo9-10 1.7380
EN 10216-2
11CrMo9-10 1.7383
EN 10213-2 GX15CrMo5 1.7365
X11CrMo5+L 1.7362+L
5.3 EN 10216-2 X11CrMo5+NT1 1.7362+NT1
X11CrMo5+NT2 1.7362+NT2
EN 10222-2 X16CrMo5-1 1.7366
5.4 EN 10216-2 X11CrMo9-1+L 1.7386+L
X11CrMo9-1+NT 1.7386+NT
EN 10213-2 G12MoCrV5-2 1.7720
6.1
EN 10216-2 14MoV6-3 1.7715
6.2 EN 10213-2 G17CrMoV5-10 1.7706
EN 10222-2 X10CrMoVNb9-1 1.4903
EN 10222-2 X20CrMoV12-1 1.4922
EN 10213-2 GX23CrMoV12-1 1.4931
6.4
X10CrMoVNb9-1 1.4903
EN 10216-2
X20CrMoV11-1 1.4922

© ISO 2006 – All rights reserved 11

---------------------- Page: 16 ----------------------
ISO/TR 20172:2006(E)
Table 1 (continued)
Group Reference Designation
standard Name Number
X2CrNi12 1.4003
X2CrTi12 1.4512
X6CrNiTi12 1.4516
X6Cr13 1.4000
X6CrAl13 1.4002
X2CrTi17 1.4520
X6Cr17 1.4016
X3CrTi17 1.4510
X3CrNb17 1.4511
X6CrMo17-1 1.4113
EN 10088-1:1995
7.1
X6CrMoS17 1.4105
Table 1
X2CrMoTi17-1 1.4513
X2CrMoTi18-2 1.4521
a a
X2CrMoTiS18-2 1.4523
a a
X6CrNi17-1 1.4017
X6CrMoNb17-1 1.4526
a a
X2CrNbZr17 1.4590
X2CrAlTi18-2 1.4605
X2CrTiNb18 1.4509
X2CrMoTi29-4 1.4592
EN 10028-7 X3CrNiMo13-4 1.4313
X12Cr13 1.4006
X12CrS13 1.4005
X20Cr13 1.4021
X30Cr13 1.4028
X29CrS13 1.4029
X39Cr13 1.4031
X46Cr13 1.4034
7.2 EN 10088-1:1995 X50CrMoV15 1.4116
Table 2 X70CrMo15 1.4109
X14CrMoS17 1.4104
X39CrMo17-1 1.4122
X105CrMo17 1.4125
X90CrMoV18 1.4112
X17CrNi16-2 1.4057
X3CrNiMo13-4 1.4313
X4CrNiMo16-5-1 1.4418
a
Patented steel grade.

12 © ISO 2006 – All rights reserved

---------------------- Page: 17 ----------------------
ISO/TR 20172:2006(E)
Table 1 (continued)
Group Reference Designation
standard Name Number
GX8CrNi12 1.4107
EN 10213-2
GX4CrNi13-4 1.4317
EN 10213-3 GX3CrNi13-4 1.6982
7.2
EN 10222-5 X3CrNiMo13-4 1.4313
X3CrNiMo13-4 1.4313
EN 10272
X12Cr13 1.4006
X2CrNi18-9 1.4307
X2CrNi19-11 1.4306
X2CrNiN18-10 1.4311
X5CrNi18-10 1.4301
X6CrNi18-10 1.4948
X6CrNiTi18-10 1.4541
8.1 EN 10028-7 X7CrNiTi18-10 1.4941
X6CrNiNb18-10 1.4550
X2CrNiMo17-12-2 1.4404
X2CrNiMoN17-12-2 1.4406
X5CrNiMo17-12-2 1.4401
X6CrNiMoTi17-12-2 1.4571
X6CrNiMoNb17-12-2 1.4580
© ISO 2006 – All rights reserved 13

---------------------- Page: 18 ----------------------
ISO/TR 20172:2006(E)
Table 1 (continued)
Group Reference Designation
standard Name Number
X10CrNi18-8 1.4310
X2CrNiN18-7 1.4318
X2CrNi18-9 1.4307
X2CrNi19-11 1.4306
X2CrNiN18-10 1.4311
X5CrNi18-10 1.4301
X8CrNiS18-9 1.4305
X6CrNiTi18-10 1.4541
X6CrNiNb18-10 1.4550
X4CrNi18-12 1.4303
X2CrNiMo17-12-2 1.4404
X2CrNiMoN17-11-2 1.4406
X5CrNiMo17-12-2 1.4401
EN 10088-1:1995
X6CrNiMoTi17-12-2 1.4571
Table 3
X6CrNiMoNb17-12-2 1.4580
X2CrNiMo17-12-3 1.4432
8.1 X2CrNiMoN17-13-3 1.4429
X3CrNiMo17-13-3 1.4436
X2CrNiMo18-14-3 1.4435
X2CrNiMoN18-12-4 1.4434
X2CrNiMo18-15-4 1.4438
X2CrNiMoN17-13-5 1.4439
X1CrNiSi18-15-4 1.4361
X3CrNiCu19-9-2 1.4560
X6CrNiCuS18-9-2 1.4570
X3CrNiCu18-9-4 1.4567
X3CrNiCuMo17-11-3-2 1.4578
GX2CrNi19-11 1.4309
GX5CrNi19-10 1.4308
GX5CrNiNb19-11 1.4552
EN 10213-4
GX2CrNiMo19-11-2 1.4409
GX5CrNiMo19-11-2 1.4408
GX5CrNiMoNb19-11-2 1.4581

14 © ISO 2006 – All rights reserved

---------------------- Page: 19 ----------------------
ISO/TR 20172:2006(E)
Table 1 (continued)
Group Reference Designation
standard Name Number
X2CrNiCu19-10 1.4650
X6CrNiTi18-10 1.4541
X6CrNiNb18-10 1.4550
X6CrNi18-10 1.4948
X6CrNiTiB18-10 1.4941
X7CrNiNb18-10 1.4912
X2CrNiMo17-12-2 1.4404
X2CrNiMoN17-11-2 1.4406
EN 10222-5
X5CrNiMo17-12-2 1.4401
X6CrNiMoTi17-12-2 1.4571
X2CrNiMo17-12-3 1.4432
X2CrNiMoN17-13-3 1.4429
X3CrNiMo17-13-3 1.4436
8.1
X2CrNiMo18-14-3 1.4435
X3CrNiMoN17-13-3 1.4910
X3CrNiMo18-12-3 1.4449
X2CrNi18-9 1.4307
X2CrNi19-11 1.4306
X2CrNiN18-10 1.4311
X5CrNi18-10 1.4301
X6CrNiTi18-10 1.4541
EN 10272
X6CrNiNb18-10 1.4550
X2CrNiMo17-12-2 1.4404
X2CrNiMoN17-12-2 1.4406
X5CrNiMo17-12-2 1.4401
X6CrNiMoTi17-12-2 1.4571
X1CrNi25-21 1.4335
X1CrNiMoN25-22-2 1.4466
X1NiCrMoCu31-27-4 1.4563
EN 10088-1:1995
8.2 X1NiCrMoCu25-20-5 1.4539
Table 3
X1CrNiMoCuN25-25-5 1.4537
a a
X1CrNiMoCuN20-18-7 1.4547
X1NiCrMoCuN25-20-7 1.4529
a
Patented steel grade.
© ISO
...