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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
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Key Characteristics of P295GH Steel2025-12-22
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Characteristics of DIN 17102 WStE 255 Steel2025-12-19
P355NL2 steel, P355NL2 steel plate
P355NL2 steel plate under En10028-3 standard, which is non alloy and alloy steels with specified elevated temperature properties. P355NL2 grades are used above all for manufacturing boilers, pressure vessels and pipes transporting hot liquids.
P355NL2 steel plate specification:
Thickness: 6mm to 300mm,
Width: 1500mm to 4050mm,
Length: 3000mm to 15000mm
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P355NL2 Chemical Composition |
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Grade |
The Element Max (%) |
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|
C |
Si |
Mn |
P |
S |
Al(min) |
N |
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|
0.18 |
0.50 |
0.9-1.70 |
0.025 |
0.015 |
|
0.02 |
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Cr |
Cu |
Mo |
Nb |
Ni |
Ti |
V |
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|
0.30 |
0.30 |
0.08 |
0.005 |
0.50 |
0.03 |
0.10 |
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Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%
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Grade |
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P355NL2 Mechanical Property |
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Thickness |
Yield |
Tensilmie |
Elongation |
Impact Energy(KV J) min |
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|
mm |
Min Mpa |
Mpa |
Min % |
-20° |
0° |
+20° |
|||
|
t≤ 16 |
355 |
490-630 |
22 |
65 |
90 |
100 |
|||
|
16< t ≤35 |
355 |
490-630 |
22 |
65 |
90 |
100 |
|||
|
35< t ≤50 |
345 |
490-630 |
22 |
65 |
90 |
100 |
|||
|
50<t≤70 |
325 |
490-630 |
22 |
65 |
90 |
100 |
|||
|
70< t ≤100 |
315 |
470-610 |
21 |
65 |
90 |
100 |
|||
|
100< t≤150 |
295 |
450-590 |
21 |
65 |
90 |
100 |
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