quality

grade

specification range (mm)

executive standard

application

thickness

width

carbon structure steel

Q195

8-100

1400

-

3800

GB700-88

Gb3274-88

having the good properties of welding, machining and processing and applicable to welding, riveting, twisting and normal structure parts

Q215AB

Q235ABCD

Q255AB

Quality carbon structure steel

10#-55#

GB711-88

GB699-88

Q/ASB84-99

having good mechanical properties and anti-deforming capacity and applicable to knife, die and structure, etc.

08A1

50Mn、70Mn

structure steel with low alloy and high strength

Q295-460

ABCDE

SM490A

GR350

ST52-3

GB/T1591-94

GB3274-88

Q/ASB320-01

Q/ASB323-01

Q/ASB322-01

having good general properties and low temperature toughness and applicable to bridge, crane machinery, vehicle, building structure, etc.

ship building

A B

D E

AH32 DH36

EH32 AH36

DH36 EH36

8-60

Q/ASB141-2002

CCS、ABS、GL、

LR、BV、RINA、

KR、NK、DNV

applicable to heavy and intermediate ship body structure

boiler plate

20g、16Mng

12Cr1MoVg

P355GH

GB713-1997

protocol

having good general properties and anti ageing capacity and applicable to hinge pressure boiler structure

vessel plate

16MnR、20R

16MnDR

15CrmoR

CF62

GB6654-1996

协议

protocol

low alloy and high strength, having good low temperature toughness and applicable to building heavy vessel and high pressure sphere

bridge plate

Q345qCDE

Q370q

14MnNbq

GB/T714-2000

协议

protocol

applicable to bridge structure

pipeline steel

X52、X56、X60、X65、X70

10-30

API 5L

applicable to manufacture the transmission pipeline of the petroleum and natural gas

die steel

3Cr2Mo

10-80

YB/T107-1997

applicable to manufacture the high grade die