High strength plate steel for pressure vessels with Ni elements 08Ni3DR, 06Ni9DR,…
Available materials(Product Standards: Q/BQB 665-2013)
Grade
Thickness(mm)
08Ni3DR
5-80
Mainly processed as structural component and equipment of pressure vessels at -100~100℃.
06Ni9DR
5-40
Mainly processed as structural component and equipment of pressure vessels at -196~100℃.
Chemical composition
Grade
Chemical composition%
C
Si
Mn
P
S
Ni
Mo
V
08Ni3DR
≤0.08
0.15-0.35
0.30-0.80
≤0.010
≤0.005
3.25-3.70
≤0.12
≤0.05
06Ni9DR
≤0.08
≤0.35
0.30-0.80
≤0.008
≤0.004
8.50-10.0
≤0.10
≤0.01
Mechanical properties
Grade
Thickness(mm)
Mechanical properties
YS(MPa)
TS(MPa)
EL%
08Ni3DR
5-60
≥320
490-620
≥21
>60-80
≥300
480-610
06Ni9DR
5-30
≥560
680-820
≥18
>30-40
≥550
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