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ISO/TR 15608 Unalloyed Carbon Steels ISO/TR 15608 Material Group 1.1

ISO/TR 15608 Material Group 1.1: Unalloyed Low carbon steel with a specific minimum yield strength ReH ≤ 275 N/mm2 a and with follow analysis:
C ≤ 0,25%; Si ≤ 0,60%; Mn ≤ 1,8%; Mo ≤ 0,70%b; S ≤ 0,045%; P ≤ 0,045%; Cu ≤ 0,40%b; Ni ≤ 0,5%b; Cr ≤ 0,3%b; (0,4% for castings; Nb ≤0,06%; V ≤ 0,1%b; Ti ≤0,05%;

Remarks:
a In accordance with the specification of steel product standards, ReH may be replaced by Rp0,2 or Rt0,5;
b A higher value is accepted, provided Cr+Mo+Ni+Cu+V ≤ 0,75%

Features of unalloyed low carbon steel ISO/TR 15608 group 1.1

Non-alloy steels or low carbon steels are those that contain other alloying elements such as manganese, chromium, nickel, vanadium, or titanium in smaller quantities. In terms of quality, they can be with special characteristics in terms of toughness, grain size, formability, yield strength, ductility, cold formability and weldability.
Specified yield strength ReH ≤ 275 N/mm2

Applications of unalloyed low carbon steel

Due to the moderate carbon content and the specified low alloy constituents, the steels in this material group are suitable for application temperatures up to approx. 300 °C. These steels also have specified strength characteristics such as yield strength or tensile strength. These characteristics make this material group essential in the manufacture of parts and machinery, pressure equipments for the chemical industry, the oil industry and other industries, among others.

For low carbon steels with specified 275 < ReH ≤ 360 N/mm2: see Group 1.2

For low carbon steels with specified ReH > 360 N/mm2: see Group 1.3

Name /GradeNumberStandardsProductRemarks
P195TR2
P195TR2
1.0108
1.0108
EN 10216-1
EN 10217-1
Seamless tube
Welded tube
EN 13445-2 & EN 13480-2 & EN 12953-2
EN 13445-2 & EN 13480-2 & EN 12953-2
P195GH
P195GH
1.0348
1.0348
EN 10216-2
EN 10217-2
Seamless tube
Welded tube
EN 13445-2 & 12953-2 & EN 12953-2
EN 13445-2 & 12953-2 & EN 12953-2
P215NL
P215NL
P215NL
P215NL TC2
1.0451
1.0451
1.0451
1.0451
EN 10216-4
EN 10217-6
EN 10217-4
EN 10253-2
Seamless tube
Submerged arc welded tube
Electrical welded tube
Fitting
EN 13445-2 & EN 13480-2
EN 13445-2 & EN 13480-2
EN 13445-2 & EN 13480-2
EN 13445-2 & EN 13480-2
P235TR2
P235TR2
P235TR2 TC2
1.0255
1.0255
1.0255
EN 10216-1
EN 10217-1
EN 10253-2
Seamles tube
Welded tube
Fitting
EN 13445-2 & EN 13480-2 & EN 12953-2
EN 13445-2 & EN 13480-2 & EN 12953-2
EN 13445-2 & EN 13480-2
P265TR2
P265TR2
P265TR2 TC2
1.0259
1.0259
1.0259
EN 10216-1
EN 10217-1
EN 10253-2
Seamles tube
Welded tube
Fitting
EN 13445-2 & EN 13480-2 & 12953-2
EN 13445-2 & EN 13480-2
EN 13445-2 & EN 13480-2
P235GH
P235GH
P235GH
P235GH
P235GH TC2
P235GH
1.0345
1.0345
1.0345
1.0345
1.0345
1.0345
EN 10028-2
EN 10216-2
EN 10217-2
EN 10217-5
EN 10253-2
EN 10273
Plate
Seamles tube
Welded tube
Submerged arc welded tube
Fitting
Bar
EN 13445-2 & EN 13480-2 & EN 12953-2
EN 13445-2 & EN 13480-2 & EN 12953-2
EN 13445-2 & EN 13480-2 & EN 12953-2
EN 13445-2 & EN 13480-2 & EN 12953-2
EN 13445-2 & EN 13480-2
EN 13445-2 & EN 13480-2
P245GH1.0352EN 10222-2ForgingEN 13445-2
EN 12953: Valves
P250GH1.0460EN 10273BarEN 13445-2 & EN 13480-2
P265GH
P265GH
P265GH
P265GH
P265GH TC2
P265GH
1.0425
1.0425
1.0425
1.0425
1.0425
1.0425
EN 10028-2
EN 10216-2
EN 10217-2
EN 10217-5
EN 10253-2
EN 10273
Plate
Seamless tube
Welded tube
Submerged arc welded tube
Fitting
Bar
EN 13445-2 & EN 13480-2 & EN 12953-2
EN 13445-2 & EN 13480-2 & EN 12953-2
EN 12953-2
EN 13445-2 & EN 13480-2
EN 13445-2 & EN 13480-2
EN 13445-2 & EN 13480-2
P255QL1.0452EN 10216-4Seamless tubeEN 13445-2 & EN 13480-2
P265NL
P265NL
P265NL
1.0453
1.0453
1.0453
EN 10216-4
EN 10217-4
EN 10217-6
Seamless tube
Electrical welded tube
Submerged arc welded tube
EN 13445-2 & EN 13480-2
EN 13445-2 & EN 13480-2
EN 13445-2 & EN 13480-2
L245ME1.0418EN ISO 3183Pipe for gas pipelines
L245NE1.0457EN ISO 3183Pipe for gas pipelines
P275NH
P275NH
1.0487
1.0487
EN 10028-3
EN 10273
Plate
Bar
EN 13445-2 & EN 13480-2 & 12953-2
EN 13445-2 & EN 13480-2
P275NL1
P275NL1
P275NL1
1.0488
1.0488
1.0488
EN 10028-3
EN 10216-3
EN 10217-3
Plate
Seamles tube
Welded tube
EN 13445-2 & EN 13480-2
EN 13445-2 & EN 13480-2
EN 13445-2 & EN 13480-2
GP240GH1.0619EN 10213Steel castingEN 13445-2 & EN 13480-2
EN 12953: Valves
GP240GR1.0621EN 10213Steel castingEN 13445-2 & EN 13480-2
P275NL2
P275NL2
P275NL2
1.1104
1.1104
1.1104
EN 10028-3
EN 10216-3
EN 10217-3
Plate
Seamles tube
Welded tube
EN 13445-2 & EN 13480-2
EN 13445-2 & EN 13480-2
EN 13445-2 & EN 13480-2
G17Mn51.1131EN 10213Steel castingEN 13445-2 & EN 13480-2
1008
1008
G10080
G10080
ASTM A-576
ASTM A-1008
Bar
Tube
ASME BPVC
1010
1010
G10100
G10080
ASTM A-513
ASTM A-576
Tube
Bar
ASME BPVC
ASME BPVC
1015
1015
1015
G10150
G10150
G10150
ASTM A-108
ASTM A-519
ASTM A-576
Bar
Tube
Bar
ASME BPVC
ASME BPVC
ASME BPVC
1018
1018 CW
1018 HR
G10180
G10180
G10180
G10180
G10180
ASTM A-108
ASTM A-519
ASTM A-519
ASTM A-576
Bar
Tube
Tube
Bar
ASME BPVC
ASME BPVC
ASME BPVC
ASME BPVC
1020
1020 CW
1020 CW
1020 HR
G1020
G10200
G10200
G10200
G10200
G10200
ASTM A-108
ASTM A-513
ASTM A-519
ASTM A-519
ASTM A-576
Bar
Tube
Tube
Tube
Bar
ASME BPVC
ASME BPVC
ASME BPVC
ASME BPVC
ASME BPVC
1022 CW
1022 HR
G10220
G10220
G10220
G10220
ASTM A-519
ASTM A-519
ASTM A-576
Tube
Tube
Bar
ASME BPVC
ASME BPVC
ASME BPVC
1025 CW
1025 CW
1025 HR
G10250
G10250
G10250
G10250
G10250
ASTM A-513
ASTM A-519
ASTM A-519
ASTM A-576
Tube
Tube
Tube
Bar
ASME BPVC
ASME BPVC
ASME BPVC
ASME BPVC
A
K01200
K01200
ASTM A-178
ASTM A-179
E.R.W. tube
Smls. tube
ASME BPVC
ASME BPVC
K01201ASTM A-192Smls. tubeASME BPVC
D
C
K12037
K12037
ASTM A-633
ASTM A-724
Plate
Plate
ASME BPVC
ASME BPVC
SA283 A
A
K01400
K01400
ASTM A-134
ASTM A-283
Welded pipe
Plate
ASME BPVC
ASME BPVC
AK01501ASTM A-414SheetASME BPVC
SA285 A
A
A45
K01700
K01700
K01700
ASTM A-134
ASTM A-285
ASTM A-672
Welded pipe
Plate
Fusion welded pipe
ASME BPVC
ASME BPVC
ASME BPVC
K01701ASTM A-662PlateASME BPVC
SA283 B
B
K01702
K01702
ASTM A-134
ASTM A-283
Welded pipe
Plate
ASME BPVC
ASME BPVC
55
C55
K01800
K01800
ASTM A-516
ASTM A-672
Plate
Fusion welded pipe
ASME BPVC
ASME BPVC
AK01802ASTM A-633PlateASME BPVC

A2
A2
K01807
K01807
K01807
ASTM A-214
ASTM A-556
ASTM A-557
E.R.W. tube
Smls. tube
E.R.W. tube
ASME BPVC
ASME BPVC
ASME BPVC
IVK02009ASTM A-765ForgingASME BPVC
60
CC60
C60
K02100
K02100
K02100
ASTM A-516
ASTM A-671
ASTM A-672
Plate
Fusion welded pipe
Fusion welded pipe
ASME BPVC
ASME BPVC
ASME BPVC
I
II
K02104
K02104
ASTM A-524
ASTM A-524
Smls. pipe
Smls. pipe
ASME BPVC
ASME BPVC
SA285 B
B
A50
K02200
K02200
K02200
ASTM A-134
ASTM A-285
ASTM A-672
Welded pipe
Plate
Fusion welded pipe
ASME BPVC
ASME BPVC
ASME BPVC
BK02201ASTM A-414Welded pipeASME BPVC
BK02203ASTM A-662PlateASME BPVC
SA283 C
C
60
CB60
B60
K02401
K02401
K02401
K02401
K02401
ASTM A-134
ASTM A-283
ASTM A-515
ASTM A-671
ASTM A-672
Welded pipe
Plate
Plate
Fusion welded pipe
Fusion welded pipe
ASME BPVC
ASME BPVC
ASME BPVC
ASME BPVC
ASME BPVC
65
CC65
C65
K02403
K02403
K02403
ASTM A-516
ASTM A-671
ASTM A-672
Plate
Fusion welded pipe
Fusion welded pipe
ASME BPVC
ASME BPVC
ASME BPVC
65
CC65
C65
K02501
K02501
K02501
ASTM A-516
ASTM A-671
ASTM A-672
Plate
Fusion welded pipe
Fusion welded pipe
ASME BPVC
ASME BPVC
ASME BPVC
A570–30
A570–33
A570–40
K02502
K02502
K02502
ASTM A-211
ASTM A-211
ASTM A-211
Welded pipe
Welded pipe
Welded pipe
ASME BPVC
ASME BPVC
ASME BPVC
CK02503ASTM A-414SheetASME BPVC
E, AK02504ASTM A-53Resistance welded pipeASME BPVC
DK02505ASTM A-414SheetASME BPVC
ASME BPVC
ASME BPVC
CK02007ASTM A-662PlateASME BPVC
AK02508ASTM A-139Welded pipeASME BPVC
AK02509ASTM A-135E.R.W. pipeASME BPVC
IbK02601ASTM A-618TubeASME BPVC
SA283 D
D
K02702
K02702
ASTM A-134
ASTM A-283
Welded pipe
Plate
ASME BPVC
ASME BPVC
B
WPB
6
FPB
WPL6
C2
K03006
K03006
K03006
K03006
K03006
K03006
ASTM A-106
ASTM A-234
ASTM A-333
ASTM A-369
ASTM A-420
ASTM A-556
Smls. pipe
Fitting
Smls. & welded pipe
Forged pipe
Fitting
Smls. tube
ASME BPVC
ASME BPVC
ASME BPVC
ASME BPVC
ASME BPVC
ASME BPVC
K11224ASTM A-562PlateASME BPVC
T1b
T1b
K11422
K11422
ASTM A-209
ASTM A-250
Smls. tube
E.R.W. tube
ASME BPVC
ASME BPVC
K11500ASTM A-587E.R.W. pipeASME BPVC
T1
T1
P1
FP1
K11522
K11522
K11522
K11522
ASTM A-209
ASTM A-250
ASTM A-335
ASTM A-369
Smls. tube
E.R.W. tube
Smls. pipe
Forged pipe
ASME BPVC
ASME BPVC
ASME BPVC
ASME BPVC
A
L65
CM-65
K11820
K11820
K11820
ASTM A-204
ASTM A-672
ASTM A-691
Plate
Fusion welded pipe
Fusion welded pipe
ASME BPVC
ASME BPVC
ASME BPVC
CK12000ASTM A-633PlateASME BPVC
B
L70
CM-70
K12020
K12020
K12020
ASTM A-204
ASTM A-672
ASTM A-691
Plate
Fusion welded pipe
Fusion welded pipe
ASME BPVC
ASME BPVC
ASME BPVC
A
H75
K12021
K12021
ASTM A-302
ASTM A-672
Plate
Fusion welded pipe
ASME BPVC
ASME BPVC
T1a
T1a
K12023
K12023
ASTM A-209
ASTM A-250
Smls. tube
E.R.W. tube … E.R.W. tube
ASME BPVC
ASME BPVC
D
C
K12037
K12037
ASTM A-633
ASTM A-724
Plate
Plate
ASME BPVC
ASME BPVC
F1K12520ASTM A-336ForgingASME BPVC
F1K12822ASTM A-181ForgingASME BPVC
CP1J12521ASTM A-426Centrifugal cast pipeASME BPVC
WCAJ02502ASTM A-426CastingASME BPVC
WCCJ02503ASTM A-216CastingASME BPVC
WCBJ03002ASTM A-216CastingASME BPVC
LCB
WCB
J03003
J03003
ASTM A-352
ASTM A-660
Casting
Centrifugal cast pipe
ASME BPVC
ASME BPVC
LC1J12522ASTM A-352CastingASME BPVC
2J12523ASTM A-356CastingASME BPVC
WC1J12524ASTM A-217CastingASME BPVC
M 108
M 110
M 112
M 115
M 117




ASTM A-575
ASTM A-575
ASTM A-575
ASTM A-575
ASTM A-575
Bar
Bar
Bar
Bar
Bar
ASME BPVC
ASME BPVC
ASME BPVC
ASME BPVC
ASME BPVC
G10080
G10100
G10120
G10150
G10160
G10170
G10180
G10190
G10200








ASTM A-576
ASTM A-576
ASTM A-576
ASTM A-576
ASTM A-576
ASTM A-576
ASTM A-576
ASTM A-576
ASTM A-576
Bar
Bar
Bar
Bar
Bar
Bar
Bar
Bar
Bar
ASME BPVC
ASME BPVC
ASME BPVC
ASME BPVC
ASME BPVC
ASME BPVC
ASME BPVC
ASME BPVC
ASME BPVC
ASTM A-836ForgingASME BPVC
CS A
CS B
DS B


ASTM A-1008
ASTM A-1008
ASTM A-1008
Sheet
Sheet
Sheet
ASME BPVC
ASME BPVC
ASME BPVC
CS B
DS B
SS 33
SS 36 1
SS 36 2




ASTM A-1011
ASTM A-1011
ASTM A-1011
ASTM A-1011
ASTM A-1011
Sheet
Sheet
Sheet
Sheet
Sheet
ASME BPVC
ASME BPVC
ASME BPVC
ASME BPVC
ASME BPVC
A
A25
A25P
BM
BMO
BMS
BN
BNO
BNS
BNQ
BQO
BQS
BQR












API Spec 5L
API Spec 5L
API Spec 5L
API Spec 5L
API Spec 5L
API Spec 5L
API Spec 5L
API Spec 5L
API Spec 5L
API Spec 5L
API Spec 5L
API Spec 5L
API Spec 5L
Smls. & welded pipe
Smls. & welded pipe
Smls. & welded pipe
Welded pipe
Welded pipe
Welded pipe
Smls. & welded pipe
Smls. & welded pipe
Smls. & welded pipe
Smls. & welded pipe
Smls. & welded pipe
Smls. & welded pipe
Smls. & welded pipe
ASME BPVC
ASME BPVC
ASME BPVC
ASME BPVC
ASME BPVC
ASME BPVC
ASME BPVC
ASME BPVC
ASME BPVC
ASME BPVC
ASME BPVC
ASME BPVC
ASME BPVC
Table: Typical materials

FAQs to ISO/TR 15608 Material Group 1.1

What means material group 1.1 acc. to ISO/TR 15608?

Low carbon steels with a specific minimum yield strength ReH ≤ 275 N/mm2 and specific analysis.

What are material groups in acc. to ISO/TR 15608?

The material groups according to ISO/TR 15608 are primarily classified for welding purposes, but can also be used for other purposes such as heat treatment, forming and non-destructive testing.
Classification is usually based on chemical product analysis and/or mechanical material properties.

Which materials are included in the grouping system of ISO/TR 15608?

This standard covers steels, aluminium and aluminium alloys, copper and copper alloys, nickel and nickel alloys, titanium and titanium alloys, zirconium and zirconium alloys and cast irons.

Is the ISO/TR 15608 grouping system and the P-Numbering system in acc. to ASME Code Section IX identical?

No, it is similar but not exactly the same.