Tel : 0086-021-60880117
Tel : 0086-021-60880117
ASME SA738 Grade B is a kind of low Carbon, age-hardening, Ni-Cu-Cr-Mo alloy steel plates material used to fabric pressure vessels. SA738 is divided into two grades or levels:SA738 Grade A,SA738 Grade B and SA738 Grade C.
This specification ASME SA738 covers two grades of low-carbon age-hardening alloy steel plates for welded pressure vessels and piping components.
Standard: ASME SA738/SA738M
Dimension range : 3mm -500mm * 1000mm-4000mm * 1000mm-18000mm
ASME SA738 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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SA738 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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SA738 Grade B Boiler steel plate Chemical Composition :
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Chemical Composition
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SA738 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
ASME SA738 Grade B pressure vessel steel application :
SA738 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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