P355Q and P460Q are grades of quenched and tempered weldable fine grain steel used for pressure vessels and high-temperature equipment, according to the EN 10028-6 standard. The primary difference is their strength: P460Q is a higher strength grade than P355Q.
Supplementary Technology: HIC Test | NACE MR0175 | Z15 | Z25 | Z35 |
Thickness: 6MM to 300MM,
Width: 1500mm to 4050mm,
Length: 3000mm to 15000mm
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P355Q Chemical Composition |
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|
Grade |
The Element Max (%) |
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|
C |
Si |
Mn |
P |
S |
N |
B |
|
|
P355Q |
0.16 |
0.4 |
1.5 |
0.025 |
0.015 |
0.015 |
0.005 |
|
Mo |
Cu |
Nb |
Ni |
Ti |
V |
Zr |
|
|
0.25 |
0.3 |
0.05 |
0.5 |
0.03 |
0.06 |
0.05 |
|
Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%
|
P460Q Chemical Composition |
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|
Grade |
The Element Max (%) |
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|
C |
Si |
Mn |
P |
S |
N |
B |
|
|
P460Q |
0.18 |
0.50 |
1.70 |
0.025 |
0.015 |
0.015 |
0.005 |
|
Mo |
Cu |
Nb |
Ni |
Ti |
V |
Zr |
|
|
0.50 |
0.3 |
0.05 |
0.5 |
0.03 |
0.06 |
0.05 |
|
Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%
|
Grade |
P355Q Mechanical Property |
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|
Thickness |
Yield |
Tensile |
Elongation |
|
|
P355Q |
mm |
Min Mpa |
Mpa |
Min % |
|
6-50 |
355 |
490-630 |
22% |
|
|
50-100 |
335 |
490-630 |
22% |
|
|
100-150 |
315 |
450-590 |
22% |
|
|
Grade |
P460Q Mechanical Property |
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|
Thickness |
Yield |
Tensile |
Elongation |
|
|
P460Q |
mm |
Min Mpa |
Mpa |
Min % |
|
6-50 |
460 |
550-720 |
19% |
|
|
50-100 |
440 |
550-720 |
19% |
|
|
100-150 |
400 |
500-670 |
19% |
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