The standard of QBQB has stipulated the terms and definition classification, size, shape, technical requirements, inspection, test, package, sign, quality certification of hot rolled Zinc aluminum steel plate, strip.
The exact classification under the Standard of Q/BQB 425-2004
|
Grade |
application |
|
DC51D+AZ |
Cold rolling purpose |
|
DC52D+AZ |
|
|
S250GD+AZ |
Structural purpose |
|
S300GD+AZ |
|
|
S350GD+AZ |
|
|
S550GD+AZa |
|
|
a means the products are not complete Normalizing |
|
The classification for layer, surface structural, surface treatment
|
NO. |
classification |
Standard number |
|
Coat layer |
Aluminum zinc layer |
AZ |
|
Surface structure |
Normal zinc |
N |
|
The finishing zinc |
S |
|
|
Surface treatment |
Chemical passivation (C) |
C |
|
Oiling |
O |
|
|
chemical passivation and oiling |
CO |
|
|
Untreated |
UF |
|
|
Untreated |
U |
This standard specifies requirement for steel grades, coating classes and surface finish, as following
The standard of AS 1397-2001 can be used for steel sheet and strip, hot dip zinc coated or aluminum/zinc coated steel products.
We bebon international can offer the material under the Standard of AS 1397-2001 such as G2+AZ, G3+AZ, G250+AZ, G300+AZ, G350+AZ, G550+AZ. This standard specifies requirement for hot dip zinc-coated or aluminum and zinc coated steel sheet and strip, supplied in thickness up to and the including 5.0mm.
We, bebon can produce this product under the standard specification. Any size require for the material under this standard required, please be free to contact us,
we will give you the best quality product and best service.