B490NQR steel is a family member of Q/BQB 340 steel. B490NQR improved anti corrosion structure steel plates have better corrosion resistance than carbon steel plates in the atmosphere. With time passing by, once installed, B490NQR improved anti corrosion structure steel plates can gradually formed a protective layer of rust resistance to atmospheric corrosion.
Dimensions for B490NQR improved anti corrosion structure steel plates
Thickness: 6mm to 300mm,
Width: 1500mm to 4050mm,
Length: 3000mm to 15000mm.
Chemical compositions Max(%) for B490NQR improved anti corrosion structure steel plates
| B490NQR Chemical composition | |||||
|
Grade |
The Element Max (%) |
||||
|
B490NQR |
C |
Si |
Mn |
P |
S |
|
0.12 |
0.15-0.55 |
1.20 |
0.06-0.12 |
0.03 |
|
|
Cr |
Cu |
Ti |
|
|
|
|
|
0.20-0.45 |
0.1 |
|
|
|
Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%
Mechanical properties for B490NQR improved anti corrosion structure steel plates
| Grade |
Yield |
Tensile |
Elongation |
|
B490NQR |
Min Mpa |
Mpa |
Min % |
|
390 |
490 |
23 |
The third party inspection: DNV, BV, LR, ABS, SGS ,etc
various processing for B490NQR improved anti corrosion structure steel plates:
cutting ( any size and any shape ) drilling, welding, milling, machining and steel structure.
logistic system service for B490NQR improved anti corrosion structure steel plates:
shipping, truck transportation and wharf. (note: the whole operation process can be quickened if necessary.)
Typical applications for B490NQR improved anti corrosion structure steel plates:
gas flue applications; aesthetic facials.
Just like you, 70% customers choose long-term cooperation with BBN steel not only for our good product and service quality, good reputation in the international market, but also for our experienced one-stop raw material supply and further steel processing!
