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Tel : 0086-021-60880117
ASTM A737 Grade B is a kind of low Carbon, age-hardening, Ni-Cu-Cr-Mo alloy steel plates material used to fabric pressure vessels. A737 is divided into two grades or levels:A737 Grade B and A737 Grade C.
This specification ASTM A737 covers two grades of low-carbon age-hardening alloy steel plates for welded pressure vessels and piping components.
Standard: ASTM A737/A737M
Dimension range : 3mm -500mm * 1000mm-4000mm * 1000mm-18000mm
ASTM A737 Grade B steel plate/sheet Mechanical Properties :
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Mechanical Properties
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Grade |
Thickness |
Yield |
Tensile Strength |
Elongation |
Charpy V Notch Impact Test |
|
|
Degree |
Min Value |
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A737 Grade B |
mm |
Min Mpa |
Mpa |
Min % |
- |
J |
|
5≤t≤50 |
275 |
450-585 |
23% |
- |
||
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50≤t≤150 |
275 |
450-585 |
20% |
|
- |
|
|
Note: Impact energy for impact test is on longitudinal |
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A737 Grade B Boiler steel plate Chemical Composition :
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Chemical Composition
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A737 Grade B |
The Element Max (%) |
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|
C |
Si |
Mn |
P |
S |
Ni |
Mo |
|
|
Heat analyse |
0.07 |
0.40 |
0.40~0.70 |
0.025 |
0.025 |
0.70~1.00 |
0.15~0.25 |
|
Product analyse |
0.09 |
0.45 |
0.35~0.78 |
- |
- |
0.67~1.03 |
0.12~0.28 |
Delivery Status : Normalizing + tempering
ASTM A737 Grade B pressure vessel steel application :
A737 Grade B steel plate is mainly used in petroleum, chemical industry, power station, boiler and other industries, for the production reactor, heat exchanger, separator, spherical tank, oil tank, liquefied gas tank, nuclear reactor pressure shell, boiler drum, liquefaction Oil cylinders, high-pressure water pipe hydropower station, turbine volute and other equipment and components.
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