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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
ST52-3 steel, ST52-3 steel plate, ST52-3 carbon steel plate
ST52-3 steel is a low carbon, high strength structural steel which can be readily welded to other weld-able steel. With its low carbon equivalent, it possesses good cold-forming properties. The ST52-3 steel plate is supplied in normalized or control-rolled condition.
Specification of ST52-3 steel plate:
Thickness: 5mm-650mm
Width: 1500-4000mm
Length: 3000-18500mm
Chemical composition of the ST52-3 carbon steel plate (%):
|
Thickness, C
|
P |
S |
N |
|
|
≤16 |
0.22 |
0.050 |
0.050 |
|
|
＞16 ≤30 |
0.22 |
|||
|
＞30 ≤40 |
0.24 |
|||
|
＞40 ≤63 |
0.24 |
|||
|
＞63 ≤100 |
0.24 |
|||
Mechanical properties of ST52-3 carbon steel plate
|
Nominal thickness (mm)
|
to 16 |
16 - 40 |
40 - 63 |
63 - 80 |
80 - 100 |
100 - 150 |
150 - 200 |
|
ReH - Minimum yield strength (MPa) |
355 |
345 |
335 |
325 |
315 |
|
|
|
Nominal thickness (mm) |
to 3 |
3 - 100 |
|
Rm -Tensile strength (MPa) |
510-680 |
490-630 |
|
Nominal thickness (mm) |
≥0.5 ＜1 |
≥1＜1.5 |
≥1.5＜2 |
≥2﹤2.5 |
≥2.5＜3 |
≥3＜40 |
≥40﹤63 |
≥63﹤100 |
|
A - Minimum elongation Lo = 5,65 √ So (%) Longitudinal |
14 |
15 |
16 |
17 |
18 |
22 |
21 |
20 |
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