Introduction
The 37Mn gas tube is a seamless steel tube suitable for the production of gas cylinder type high pressure vessels.
Standard
GB 18248、JIS G3429、ASTM A372、ISO 11120
Mainly produces steel pipe grades
37Mn, 34Mn2V, 30CrMo, 35CrMo, STH11, STH12, STH21, STH22 and the like.
Details
| Standard | Brand | 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 | / | |
Our production equipment
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