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ASTM A202 Grade B is a chromium-manganese-silicon low-alloy steel tailored for high-pressure, medium-temperature pressure vessel applications.2026-04-30
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ASTM A202 Grade A is a critical chromium-manganese-silicon low-alloy steel plate specifically designed for welded pressure vessels and boilers operating at medium temperatures.2026-04-30
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ASTM A202 Pressure Vessel Steel Material and Grades:
Alloy System: **Chromium-Manganese-Silicon (Cr-Mn-Si)** Low-Alloy Heat-Resistant Steel2026-04-17 -
ASTM A204/A204M Grade B molybdenum alloy steel plates for pressure vessels feature superior chemical composition and mechanical properties compared to Grade A2026-04-10
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As a molybdenum-alloy steel plate for pressure vessels under the ASTM A204/A204M standard, A204 Gr.A is a low-alloy, high-strength material specifically designed for service conditions involving moderate temperatures (≤400°C) and moderate-to-high pressure2026-03-31
ASTM A302-B, Grade A302-B, A302-B steel
ASTM A302-B steel is a kind of material for boiler and pressure vessel steel. So, ASTM A302-B steel is used above all for
manufacturing boilers, pressure vessels and pipes transporting hot liquids.
About ASTM A302-B steel, we can offer the A302-B steel plate specification:
Thickness: 6MM to 300MM
Width: 1500mm to 4050mm
Length: 3000mm to 15000mm
ASTM A302-B steel chemical composition:
|
Carbon, max |
% |
Manganese, max |
% |
Silicon, max |
% |
Sulfur max |
% |
|
25mm or under |
0.2 |
Heat Analysis |
1.15-1.50 |
Heat Analysis |
0.15-0.40 |
All thick |
0.035 |
|
25-50mm |
0.23 |
Product Analysis |
1.07-1.62 |
Product Analysis |
0.13-0.45 |
||
|
over 50mm |
0.25 |
|
|
|
|
||
|
|
|
Molybdenum max |
% |
Nickel max |
% |
Phosphorus |
% |
|
|
|
Heat Analysis |
0.45-0.60 |
Heat Analysis |
… |
All thick |
0.035 |
|
|
|
Product Analysis |
0.41-0.64 |
Product Analysis |
… |
ASTM A302-B steel mechanical property:
|
Mechanical Property of A302 Gr B steel plate |
A302 Gr B |
|
Tensile strength, kis [MPa] |
80-100 [550-690] |
|
Yield strength, min, kis [MPa] |
50 [345] |
|
Elongation in 8 in. [200 mm], min, % |
15 |
|
Elongation in 2 in. [50 mm], min, % |
18 |
BEBON INTERNATIONAL is committed to steel processing and export. We have the most comprehensive service. One package service will be offered, including cutting,welding, drilling, shot blast cleaning, derusting, painting, galvanized, etc, our service will be around your requirement and ensure the perfect service.