4140 钢材的化学成分
StandardGB: 42CrMo AISI: 4140 DIN: 1.7225 JIS: SCM440
Chemical compositionC SI Mn P S Cr Mo Ni
Features of 4140 alloy steel
1, Chromium molybdenum alloy steel
2, Slightly higher carbon content then 4130
3, Greater strength and heat treatment
Typical Applications
1, Applications in the oil and gas sector
2, Connection rods, collets, conveyor pins,
3, Gears, stem assemblies,
4, Pump shafts and tool holders
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