|
 |
| |
| Cylinder Pipes |
| |
 |
| |
| Standard |
| GB 18248, JIS G3429,
EN 10083+Technical Agreement |
| |
| Grade |
| 37Mn, 34Mn2V, 30CrMo, 35CrMo, 34CrMo4, STH11, STH12, STH21, STH22, etc. |
| |
| Application |
| For high pressure container and gas cylinder |
| |
| Mechanical Properties |
| Standard |
Steel Grade |
Tensile Strength(MPa) |
Yield Point(MPa) |
Elongation(%) |
| GB18248 |
37Mn |
≥750 |
≥630 |
≥16 |
| 34Mn2V |
≥745 |
≥530 |
≥16 |
| 30CrMo |
≥930 |
≥785 |
≥12 |
| 35CrMo |
≥980 |
≥835 |
≥12 |
|
| |
| Chemical Composition |
| Standard |
Steel Grade |
Chemical Composition |
C |
Si |
Mn |
P, S |
Cu |
Ni |
Mo |
Cr |
V |
| GB18248 |
37Mn |
0.34～0.40 |
0.10～0.30 |
1.35～1.65 |
≤0.030 |
≤0.20 |
≤0.30 |
/ |
≤0.30 |
/ |
| 34Mn2V |
0.30～0.37 |
0.17～0.37 |
1.40～1.75 |
≤0.030 |
≤0.20 |
≤0.30 |
/ |
≤0.30 |
0.07～0.12 |
| 30CrMo |
0.26～0.34 |
0.17～0.37 |
0.40～0.70 |
≤0.030 |
≤0.20 |
≤0.30 |
0.15～0.25 |
0.80～1.10 |
/ |
| 35CrMo |
0.32～0.40 |
0.17～0.37 |
0.40～0.70 |
≤0.030 |
≤0.20 |
≤0.30 |
0.15～0.25 |
0.80～1.10 |
/ |
| JIS G3429 |
STH11 |
≤0.50 |
0.10～0.35 |
≤1.80 |
≤0.035 |
/ |
/ |
/ |
/ |
/ |
| STH12 |
0.30～0.41 |
0.10～0.35 |
1.35～1.70 |
≤0.030 |
/ |
/ |
/ |
/ |
/ |
| STH21 |
0.25～0.35 |
0.15～0.35 |
0.40～0.90 |
≤0.030 |
/ |
≤0.25 |
0.15～0.30 |
0.80～1.20 |
/ |
| STH22 |
0.33～0.38 |
0.15～0.35 |
0.40～0.90 |
≤0.030 |
/ |
≤0.25 |
0.15～0.30 |
0.80～1.20 |
/ |
|
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