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螺旋钢管常用材质力学性能及化学成份 |
Q235B 16MN钢管 L245 L290 Q345钢管的力学性能和化学成份
钢种 |
力学性能 |
化学成份 |
屈服强度 |
抗拉强度 |
伸长率 |
C |
Si |
Mn |
S |
P |
MPa |
kg/mm² |
MPa |
kg/mm² |
min |
不大于 |
不大于 |
不大于 |
Q215A
Q215B |
215 |
22 |
335-410 |
34-42 |
31 |
0.09-0.15 |
0.03 |
0.25-0.55 |
0.050
0.045 |
0.045 |
Q235A
Q235B
Q235C
Q235D |
235 |
24 |
375-460 |
38-47 |
26 |
0.14-0.22
0.12-0.20
≤0.18
≤0.17 |
0.30 |
0.30-0.65
0.30-0.70
0.35-0.80
0.35-0.80 |
0.50
0.45
0.40
0.035 |
0.045
0.045
0.040
0.035 |
16Mn(Q345B) |
345 |
35 |
510-600 |
51.60 |
22 |
0.12-0.20 |
0.20-0.55 |
1.2-1.6 |
0.045 |
0.045 |
X42 |
289 |
29.5 |
413 |
42.1 |
|
0.28 |
- |
1.25 |
0.030 |
0.030 |
X52 |
358 |
36.5 |
455 |
46.4 |
0.30 |
- |
1.35 |
0.030 |
0.030 |
X56 |
386 |
39.4 |
489 |
49.9 |
0.26 |
- |
1.35 |
0.030 |
0.030 |
X60 |
413 |
42.1 |
517 |
52.7 |
0.26 |
- |
1.35 |
0.030 |
0.030 |
X65 |
448 |
45.7 |
530 |
54.0 |
0.26 |
- |
1.40 |
0.030 |
0.030 |
X70 |
482 |
49.2 |
565 |
57.6 |
0.26 |
- |
1.40 |
0.030 |
0.030 |
L245 |
245 |
|
415 |
|
21 |
0.26 |
|
1.15 |
0.030 |
0.030 |
L290 |
290 |
|
415 |
|
21 |
0.28 |
|
1.25 |
0.030 |
0.030 |
L360 |
360 |
|
460 |
|
19 |
0.3 |
|
1.25 |
0.030 |
0.030 |
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