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ASTM A387 Gr 21 CL 2 is a chromium molybdenum alloy steel plate intended primarily for welded boiler and pressure vessels designed of elevated temperature service. The Cr content 3.00 % and the Mo content 1.00 %.
Each grade except grade 21L, Grade 22L, Grade 91 and Grade 911 is available in two classes of tensile strength levels. Grade 91 and Grade 911 are available only as Class 2.
Supplementary Technology: HIC Test | NACE MR0175 | Z15 | Z25 | Z35 | S1 | S2 | S3 | S4
S5 | S6 | S7 | S8 | S9| S11 | S12 | S14 | S17
STEEL DIMENSION:
Thickness: 6MM to 300MM,
Width: 1500mm to 4050mm,
Length: 3000mm to 15000mm
Gangsteel is specialized in supplying ASTM steel plate in A387 Grade21 Class2. For more information of grade A387 Gr.21 Cl.2 steel plates, please check them in following:
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A387 Gr.21 CL.2Chemical Composition |
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Grade |
The Element Max (%) |
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C |
Si |
Mn |
P |
S |
Cr |
Mo |
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A387 Gr.21 Cl.2 |
0.04-0.15 |
0.50 |
0.25-0.66 |
0.035 |
0.035 |
2.63-3.37 |
0.85-1.15 |
Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%
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Grade |
A387 Gr.12 CL.2Mechanical Property |
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Thickness |
Yield |
Tensile |
Elongation |
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A387 Gr.21 Cl.2 |
mm |
Min Mpa |
Mpa |
Min % |
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t≦50 |
310 |
515-690 |
18 |
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50<t≦200 |
- |
- |
- |
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Shipbuilding steel plate| Alloy steel plates| High strength plate| Carbon steel plate| Stainless steel plate
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Equivalent steel grade of A387 Gr.21 Cl.2 |
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Europe |
Belgium |
Germany |
France |
Italy |
Sweden |
India |
Japan |
U.K |
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If you need more stock steel plates in pressure vessel steel plate, please click warehouse sizes.
Related Grade: A387 Grade21 Class1 | SA387 Grade21 Class1 |A387 GR.21 Cl.1 | SA387 GR.21 Cl.1
ASTM A387 Gr 5 CL 1 is a chromium molybdenum alloy steel plate intended primarily for welded boiler and pressur
Gangsteel is specialized in supplying ASTM steel plate in A387 Grade12 Class2. A387 Gr.12 CL.2,A387GR12CL2
Gangsteel is specialized in supplying ASTM steel plate in A387 Grade22 Class2. A387Gr.22CL.2,A387GR22CL2
Gangsteel is specialized in supplying ASTM steel plate in A387 Grade22 Class2.
