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Product Description
TUBE FOR GAS CYLINDER
Standard：
GB 18248---------Chinese National Standards
Application：
It is used for manufacturing high pressure gas cylinder.
Main Steel Tube Grades：
37Mn、34Mn2V、30CrMo、35CrMo。
Mechanical Properties：
|
Standard |
Steel Grade |
Tensile Strength(MPa) |
Yield Strength(MPa) |
Elongation(%) |
|
GB 18248 |
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 |
/ |
|
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Cangzhou Boqiang Pipeline Co., Ltd.