1.7220

High-carbon steel

Material No.	1.7220
US standard (AISI)
Abbreviation	34CrMo4
Old designation
Description	Carbon steel
Composition Alloy constituents [%]	C: 0.30 – 0.37 Si: ≤ 0.40 Mn: 0.60 – 0.90 P: ≤ 0.025 S: ≤ 0.035 Cr: 0.90 – 1.20 Mo: 0.15 – 0.30
Density [g/cm³]	7.9
Yield point Rp0.2 / Re[N/mm²]	>= 550
Tensile strength Rm [N/mm²]	800 – 950
Elongation after fracture A [%]	>= 14
Machinability	Good
Weldability	Unsuitable
Heat treatment	Possible
Other properties
Main uses	Cams, single, cam clamps, double, clevis joints with threaded pin, double cam levers

This information is for reference only; we do not assume any liability for its accuracy. The properties of steel materials are highly dependent on their thermal and/or mechanical treatment.