ASTM A737 Low Alloy Steel Plate
A737 steel plate is a low-alloy high-strength plate for pressure vessels. There are two grades of A737 steel plate, A737GrB and A737GrC. The lower yield strength of grade B is 345Mpa and the lower yield strength of grade C is 415Mpa.
ASTM a737 high strength low alloy steel plate chemical composition
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Chemical Requirements |
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|---|---|---|---|---|
|
Elment |
Composition, % |
|||
|
Grade B |
Grade C |
|||
|
Heat |
Product |
Heat |
Product |
|
|
Carbon, max |
0.2 |
0.22 |
0.22 |
0.24 |
|
Manganese |
1.15-1.50 A |
1.07-1.652 A |
1.15-1.50 |
1.07-1.62 |
|
Phosphorus, max |
0.025 |
0.025 |
0.025 |
0.025 |
|
Sulfur, max |
0.025 |
0.025 |
0.025 |
0.025 |
|
Silicon |
0.15-0.50 |
0.10-0.55 |
0.15-0.50 |
0.10-0.55 |
|
Vanadium |
... |
... |
0.04-0.11 |
0.03-0.12 |
|
Columbium, max |
0.05 |
0.05 |
0.05 |
0.05 |
|
Nitrogen |
... |
... |
0.03 |
0.03 |
ASTM A737 high strength low alloy steel sheet mechanical property
|
Tensile Requirements |
||
|---|---|---|
|
|
Grade B |
Grade C |
|
Yield strength, min, ksi [MPa] |
50 [345] |
60 [415] |
|
Tensile strength, ksi [MPa] |
70-90 [485-620] |
80-100 [550-690] |
|
Elongation in 8 in. [200 mm], min, % A |
18 |
18 |
|
Elongation in 2 in. [50 mm], min, % A |
23 |
23 |
ASTM a737 high strength steel sheet Products Details
A737 low alloy steel plates implementation standard: ASTM, A737/A-737M-09;
A737 low alloy structural steel plate delivery status: hot rolled, normalized, tempered.
A737 high strength steel plate are prone to cracks when subjected to flame cutting, handling and processing in the rolling state. The heat treatment of A737 is normalizing + tempering.
A737 high tensile steel plate is mainly used in petroleum, chemical equipment, petrochemical equipment, power stations, boilers, etc., and is used to make reactors, heat exchangers, separators, spherical tanks, oil and gas tanks, liquefied gas tanks, nuclear reactor pressure shells, and boiler drums. , liquefied petroleum cylinders, high-pressure water pipes for hydropower stations, turbine volutes and other equipment and components.
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