ASTM A387 Grade 12 is in the standard ASTM A-387. A387 Grade 12 is a kind of Cr-Mo-alloy steel material used to fabric high temperature pressure vessels. Because of the good mech For pressure vessel steel plate SA387 Grade 12 CL 1, the tensile strength shall be within 380 to 550, minimum yield strength is 230 Mpa.anical property, A387GR12 is widely used in the high temperature vessels industry.
ASTM A387 Grade 11 Class 1 Steel Dimension:
Thickness: 6mm -300mm;Width: 1500mm-4000mm;Length: 3000mm-15000mmMaterial ASTM A387 Grade 12 Class 1 Plates Chemical Composition
Material ASTM A387 Grade 12 Class 1 Plates Chemical Composition |
|||||||
Grade |
The Element Max (%) |
||||||
C |
Si |
Mn |
P |
S |
Cr |
Mo |
|
A387 Gr.12 Cl.1 |
0.04-0.17 |
0.13-0.45 |
0.35-0.73 |
0.035 |
0.035 |
0.74-1.21 |
0.40-0.65 |
Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%
Material ASTM A387 Grade 12 Class 1 Plates Mechanical Properties
Grade |
Material ASTM A387 Grade 12 Class 1 Plates Mechanical Property |
|||
Thickness |
Yield |
Tensile |
Elongation |
|
A387 Gr.12 Cl.1 |
mm |
Min Mpa |
Mpa |
Min % |
t≦50 |
230 |
380-550 |
22 |
|
50<t≦200 |
- |
- |
18 |
|
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