P690QH pressure steel Size:
Thickness: 2-460mm,
Width: 1500-3200mm,
Length: 6000-12000mm
Chemical Composition:
|
Main chemical elements composition of P690QH |
|||||||
|
C |
Si |
Mn |
P |
S |
B |
N |
Cr |
|
0.20 |
0.80 |
1.70 |
0.025 |
0.015 |
0.005 |
0.015 |
1.50 |
|
Cu |
Mo |
Nb |
Ni |
Ti |
V |
Zr |
|
|
0.30 |
0.70 |
0.06 |
2.50 |
0.05 |
0.12 |
0.15 |
|
Mechanical Property:
|
Thickness (mm) |
|||
|
P690QH |
≤ 50 |
> 50 ≤ 100 |
> 100 |
|
Yield strength (≥Mpa) |
690 |
670 |
630 |
|
|
≤ 100 |
> 100 |
|
|
Tensile strength (Mpa) |
770-940 |
720-900 |
|
P690QH pressure steel plate Delivery state:
♦ Heat treatment(Normalized, TMCP, Quenched and Tempered, N+T),Z-test (Z15,Z25,Z35),Ultrasonic Examination, Low temperature impacting test,DWTT, PWHT and cutting & welding into special pieces for end users. Mill test certificate issued under EN 10204 format.
P690QH pressure steel plate Application:
With the minimum yield strength at 690 Mpa for steel thickness equal and belows 50mm, weldable fine grain boiler steel plate P690QH is mainly used to manufacture liquid boilers and pressure vessels & tanks in heavy industry all over the world.