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    4. 1.7220 High-carbon steel

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.