The POSCO Quality

Steel Plate

Steel plates are hot rolled products that have a relatively high thickness. Products having a thickness of over 4.5 mm are classified as steel plates, and those having a thickness of over 100 mm are called thick steel plates. Slabs of steel plates made through continuous casting are tailored to the dimensions specified by the customer through rolling and cooling before being cut into their final sizes.

Product Specification

This product specification is subject to change, so please check the latest specifications when ordering or consult with the person in charge.

각 강재별 POSCO, KS, JIS, ASTM, 기타 상세규격
Category Specifications
POSCO KS JIS ASTM Others
Shipbuilding Steel - KR
RA, RB, RD,RE, RA32, RD32, RE32, RA36, RD36, RE36, RA40, RD40, RE40, RD244, B, RL33, 37
NK
KA, KB, KD, KE, KA32, KD32, KE32, KA36, KD36, KE36, KA40, KD40, KE40, KL24A, B, KL33, 37
ABS
A, B, D
AH32, DH32, EH32, AH40, DH40, EH40
NV, CR, BV,RINA
A, B, D
NV, RINA
A27, D27, E27, A32, D32, E32, A36, D36, E36, A40, D40, E40
CR, BV
A, D, E32/36, A, D, E40, KL24A, B, KL33, 37
LR
AH32, DH32, EH32, AHS34, DHS34, AH36, DH36, EH36, AH40
GL
A32, D32, E32, A36, D36, E36, A40, D40, E40
Steel for Machine Structural Use POSMOLD1.2
POSAR 320 360 400 500
KS D 3752
SM10C-SM58C
JIS G 4051 S10C~S58C JIS G 4105 SCM415~440 SAE1010~SAE1060
SAE4150
- -
Boiler & Pressure Vessel Quality Steel - KS D 3560
SB 410, 450, 480
KS D 3540
SGV 410, 450, 480
KS D 3521
SPPV 235, 315
SPPV 450, 490
KS D 3560
SB 450M, SB 480M
JIS G 3103
SB410, 450, 480
SB450M,SB490M
JIS G 3118
SGV410, 450, 480
JIS G 3115
SPV235, 315, 355
SPV450, 490
JIS G 3119
SBV1A, SBV1B, 2,3
JIS G 4109
SCMV1,2,3
A285 Gr A, B, C
A515
Gr 55, 60, 65,70
A516
Gr 55, 60, 65,70
A537
Class 1, 2
A387
Gr 11, 12
DIN 17155
HⅠ, HⅡ
DIN 17155
15Mo3
BS 1501-151
Gr360A, B
Gr400A, B
BS 1501-221
Gr460A, B
BS 1501-221
Gr490A, B
Gr400A, B
Gr430A, B
Gr460A
BS 1501-240
1/4Mo
BS 1501-261
1/4Mo
BS1501-224
Low-Temperature Pressure Vessel Steel - KS
SLA235A, B
SLA325A, B
SLA360
KS D 3586
SL3N255, SL3N275, SL3N440, SL9N590
JIS G 3126
SLA235A, B
SLA325A, B
SLA360
KS D 3586
SL3N255, SL3N275, SL3N440, SL9N590
A662
Gr A, B, C
A203
Gr A, B, D, E, F
A553-1
WEDhw689
TTST41
TTST45
BS1501-224
Gr 430A, B
Gr 460A, B
-
Pipes & Tubulars - - - - API 5L-A, B
X42, X46, X52, X56, X60, X65, X70
-
Offshore Steel - - - - API-2H Gr 42, 50
AI-2W
Gr 42, 50, 60
-
Atmospheric Corrosion Resistant Steel - KS D 3529
SMA41AW, AP
SMA41BW, BP
SMA41CW, CP
SMA50AW, AP
SMA50BW, BP
SMA50CW, CP
SMA58W,SMA59
JIS G 3114
SMA400AW, AP
SMA400BW, BP
SMA400CW, CP
SMA90AW, AP
SMA90BW, BP
SMA90CW, CP
SMA570W,SMA570P
A441
A558
Gr A, B, C, D, E, F
- -
Structural Steel PILAC-BT33
PILAC-BT36
PILAC-BT45
POSTEN540
POSTEN570
POSTEN590
POSTEN690
POSTEN780
POSTEN950
KS D 3503
SS235
SS275
SS315
KS D 3515
SM275
SM355
SM420
SM460
JIS G 3101
SS330, SS400, SS490
JIS G 3106
SM400A, B, C
SM490A, B, C
SM490YA, YB
SM570
JIS G 3136
SN400A, B, C
SN490B, C
JIS G 3128
SHY685N, NS
A283
Gr A, B, C, D
A36
A284
Gr A, B, C, D
A527
Gr 42, 50, 60, 65
A633
Gr A, B, C, D, E
A678 Gr B, C
A656
A514B, F
A573 Gr 58, 65,70
DIN 17100
U, RST34-1,2
ST37-1,2,3
U, RST42-1
RST42-2, 3
RST46-2,3
ST50-1,2
ST52-3
ST60-1,2
ST70-2
ISO R 630
Fe 33, 37
Fe 42, 22, 52
BS 4360
Gr 40A, B, C, D, E
Gr 43A, B, C, D, E
Gr 50A, B, C, D, E
Gr 55 C, E, F
CAS G 4021
IS 226
ST42(S) (S, C)
IS 2062
ST42(W)
ST42(W, C)
List of Specifications Approved

List of Approvals by Classification Societies(Unit : mm)

기호, 적용두께, 화학성분 등의 상세 규격
Category 40 Kg grade
(A, B, D, E)
including Z
50 Kg grade
(AH/DH/EH32/36)
including Z
50 Kg grade
FH32, 36
TMCP(PILAC)
(AH/DH/EH32,36-TM)
TMCP(PILAC)
(AH/DH/EH40-TM
Low temp. steel
SPEC Thickness
KR 70 70 - 51 50 RL-24A, 24B, 33, 37 50
ABS 70 70 - 51 50 VH-060 50
LR 70 70 50 50 50 LTFH32/36 50
NV 70 70 - 50 50 2-3, 2-4, 4-3, 4-4 50
NK 70 70 - 51 50 KL24A, B, 27, 33, 37 50
GL 70 70 - 51 50 F32, F36, F40 50
BV 70 70 - 50 - - -
CR 70 70 70 50 50 3-235, 325, 365 50
RINA 70 70 - 51 - 42.5, 47.5, 52.5 30
CCS 70 70 - 50 - - -

Approvals by KS and JIS

ks, JIS의 규격, 종류 및 기호 두께 상세 정보
Category Specifications Types and Code Thickness(mm)
KS D 3503 (Regular Structural Steel) SS330, SS400, SS490 All thicknesses
D 3515 (Structural Welded Steel) SM400A, B, C SM490A, B, C, YA, 520B
JIS G 3101 (Regular Structural Steel) SS330, SS400, SS490
G 3106 (Structural Welded Steel) SM400A, B, C SM490A, B, C, YA, YB SM520B, C, SM570
G 3136 (Structural Steel for Architecture) SN400A, B, C SN490B, C

TUV(German Classification Society)

규격에 따른 Grade, 제조법, 두께 상세 정보
Specifications Grade Method of Manufacturing Thickness(mm)
DIN17100 RST 37-2
ST 37-3
ST 44-2
ST 44-3
ST 52-2
C/C 6~100
DIN17155 HI HI

API MONOGRAM(American Petroleum Institute)

규격에 따른 Grade, 제조법, 두께 상세 정보
Specifications Grade Method of Manufacturing Thickness(mm)
API API-2H-42 Normalizing 6~100
API-2H-50
API-2W-42 TMCP 6~80
API-2W-50
API-2W-50T
API-2W-60