37CrMnMo Alloy steel

The main grades of steel for oil drilling tools and brazing tools are: EX30, SN2025, 4145H, 37CrMnMo, FF710, K24729, etc.

Application: Petroleum steel requires high purity, good toughness and low temperature impact performance, and the product replaces imports.

EX30 and SN2025 steel are mainly used for roller bit of oil drilling tools.
37CrMnMo is used for manufacturing oil drill pipe connecting sleeve.
4145H is mainly used for oil drilling pipe and drill collar, FF710, K24729 rock drilling bit and steel for drill rod.

37CrMnMo chemical composition:

C: 0.35~0.38
Si: 0.15~0.35
Mn: 0.85~1.00
P: ≤0.015
S: ≤0.008
Cr: 0.90~1.20
Mo: 0.28~0.33
Ni: ≤0.25
Cu: ≤ 0.25
N: ≤ 90 ×10-6