Catalog
|
Standard
|
Specification
|
Grade
|
Thickness/mm
|
State of delivery
|
Note
|
Main application
|
Low-alloy
structural
steel
|
GB/T 1591-2008
|
Q345
|
A、B
|
6-130
|
AR、CR
|
Can supply plus Z in GB 5313 standard
|
Used in locomotive, lifting equipment, machinery, electric engine, boiler, petroleum, chemical, shipbuilding, bridge and other welded parts in low temperature.
|
C、D
|
6-100
|
CR
|
|||||
E
|
6-80
|
CR
|
|||||
Q390
|
A、B
|
6-100
|
AR、CR
|
||||
C、D
|
6-80
|
CR
|
|||||
E
|
6-50
|
CR
|
|||||
Q420
|
A、B
|
6-100
|
AR、CR
|
||||
C、D
|
6-80
|
CR
|
|||||
E
|
6-50
|
CR
|
|||||
Q460
|
C、D
|
6-80
|
CR
|
||||
E
|
6-50
|
CR
|
|||||
Q550
|
C、D
|
6-30
|
TMCP
|