1.7220 QT steel
| Material No. | 1.7220 |
| US Standard (AISI) | - |
| Abbreviation | 34CrMo4 |
| Older designation | - |
| Description | QT steel |
| Composition Alloy components [%] | C: 0.30 - 0.37 Si: ≤ 0.40 Mn: 0.60 - 0.90 P: ≤ 0.025 S: ≤ 0.035 Cr: 0.90 - 1.20 Mon: 0.15 - 0.30 |
| Density [g/cm³] | 7.9 |
Yield point | ≥ 500 |
| Tensile strength Rm [N/mm²] | 800 - 950 |
| Elongation at fracture A [%] | ≥ 14 |
| Machinability | good |
| Weldability | unsuitable |
| Heat treatment | possible |
| Other properties | - |
| Main applications | Cam clamps with end clamping, cam clamps with centre clamping, fork pieces with threaded bolts, double cam levers |
Information for reference only; we do not assume any liability for its accuracy. Properties of steel materials are highly dependent on thermal and/or mechanical treatment.