ASTM A335/ASME SA335 P11 and P22
ASTMA 335 Alloy steel tubes
Standard: ASTM A335/ASME SA335
Steel grade: P5, P9, P11, P12, P22, P91, P92
Size: OD (90-1200mm) x WT (25-150mm)
Application: Used for boiler pipe, power plants and nuclear plants.
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Chemical Composition (%) |
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Grade |
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Cu |
Ni |
V |
Al |
W |
Nb |
N |
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0.05~0.15 |
0.5~1.0 |
0.3~0.6 |
≤ 0.03 |
≤ 0.03 |
1.0~1.5 |
0.5~1.0 |
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0.05~0.15 |
≤ 0.5 |
0.3~0.61 |
≤ 0.03 |
≤ 0.03 |
0.8~1.25 |
0.44~0.65 |
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0.05~0.15 |
≤ 0.5 |
0.3~0.6 |
≤ 0.03 |
≤ 0.03 |
1.9~2.6 |
0.87~1.13 |
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≤ 0.15 |
≤ 0.5 |
0.3~0.6 |
≤ 0.03 |
≤ 0.03 |
4.0~6.0 |
0.45~0.65 |
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0.08~0.12 |
0.2~0.5 |
0.3~0.6 |
≤ 0.02 |
≤ 0.01 |
8.0~9.5 |
0.85~1.05 |
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≤ 0.4 |
0.18~0.25 |
≤ 0.015 |
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0.06~0.10 |
0.03~0.07 |
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0.07~0.13 |
≤ 0.5 |
0.3~0.6 |
≤ 0.02 |
≤ 0.01 |
8.5~9.5 |
0.3~0.6 |
B0.001 0.006 |
≤ 0.4 |
0.15~0.25 |
≤ 0.015 |
1.5~2.0 |
0.04~0.09 |
0.03~0.07 |
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Mechanical Properties |
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Grade |
Tensile strength(MPa) |
Yield strength(MPa) |
Elongation(%) |
Impact energy(J) |
Hardness |
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≥ 415 |
≥ 205 |
≥ 22 |
≥ 35 |
≤ 163HB |
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≥ 415 |
≥ 220 |
≥ 22 |
≥ 35 |
≤ 163HB |
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≥ 415 |
≥ 205 |
≥ 22 |
≥ 35 |
≤ 163HB |
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≥ 415 |
≥ 205 |
≥ 22 |
≥ 35 |
≤ 187HB |
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585~760 |
≥ 415 |
≥ 20 |
≥ 35 |
≤ 250HB |
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≥ 620 |
≥ 440 |
≥ 20 |
≥ 35 |
250HB |
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