12Cr1MoVG high pressure alloy seamless pipe mechanical prope
TPCO
12Cr1MoVG high pressure alloy seamless tube mechanical properties chemical composition
|
Dimensional tolerance |
|
standard |
Outer diameter tolerance |
Wall thickness tolerance |
|
GB/T8163-1999 |
D<50mm |
±0.50mm |
+15/-12.5% |
Minimum: +0.45mm
|
|
D≥50mm |
±1% |
|
Minimum: -0.40mm
|
|
|
Longitudinal mechanical properties
|
|
standard |
Brand |
Tensile strength (MPa) |
Yield strength (MPa) ≥ |
Elongation (%) ≥ |
|
≤16 |
>16mm |
|
GB/T8163-1999 |
10 |
335-475 |
205 |
195 |
twenty four |
|
20 |
410-550 |
245 |
235 |
20 |
|
Q295 |
430-610 |
295 |
285 |
twenty two |
|
Q345 |
490-665 |
325 |
315 |
twenty one |
|
|
chemical composition |
|
standard |
Brand |
C |
Si |
Mn |
P≤ |
S≤ |
Ni≤ |
Cu≤ |
Cr≤ |
|
GB/T8163-1999 |
10 |
0.07-0.14 |
0.17-0.37 |
0.35-0.65 |
0.035 |
0.035 |
0.25 |
0.15 |
0.25 |
|
20 |
0.17-0.24 |
0.17-0.37 |
0.35-0.65 |
0.035 |
0.035 |
0.25 |
0.25 |
0.25 |
|
Q295 A |
≤0.16 |
≤0.55 |
0.80-1.50 |
0.045 |
0.045 |
0.30 |
0.30 |
0.30 |
|
Q295 B |
≤0.16 |
≤0.55 |
0.80-1.50 |
0.040 |
0.040 |
0.30 |
0.30 |
0.30 |
|
Q345 A |
≤0.20 |
≤0.55 |
1.00-1.60 |
0.045 |
0.045 |
0.30 |
0.30 |
0.30 |
|
Q345 B |
≤0.20 |
≤0.55 |
1.00-1.60 |
0.040 |
0.040 |
0.30 |
0.30 |
0.30 |
|
Q345 C |
≤0.20 |
≤0.55 |
1.00-1.60 |
0.035 |
0.035 |
0.30 |
0.30 |
0.30 |
|
Q345 D |
≤0.18 |
≤0.55 |
1.00-1.60 |
0.030 |
0.030 |
0.30 |
0.30 |
0.30 |
|
Q345 E |
≤0.18 |
≤0.55 |
1.00-1.60 |
0.025 |
0.025 |
0.30 |
0.30 |
0.30 |
|
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