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| Material No. |
1.7225 |
| US standard (AISI) |
4137, 4140 |
| Abbreviation |
42CrMo4 |
| Old designation |
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| Description |
Carbon steel |
Composition
Alloy constituents [%] |
C: 0.38 – 0.45
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] |
>= 650 |
Tensile strength
Rm [N/mm²] |
900 – 1100 |
Elongation after fracture
A [%] |
>= 12 |
| Machinability |
Good |
| Weldability |
Unsuitable |
| Heat treatment |
Possible |
| Other properties |
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| Main uses |
Levelling sets, studs, spherical levelling washer, connecting rods, crankshafts,
gear shafts, pinions, gear wheels |
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| 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. |
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