Quenched & Tempered Steels
Alloy steels that gain high strength and toughness through quenching and tempering.
Steel & Raw Materials
Quenched & Tempered Steels
Quenched and tempered steels combine high tensile strength with high toughness through hardening followed by tempering. Chromium, molybdenum and nickel additions ensure uniform hardening even in heavy sections.
They are ideal for crankshafts, axles, bolts, gears and hydraulic parts working under dynamic and impact loads. Available annealed or quenched & tempered.
| Grade | Mat. No. | Typical composition (%) | Typical use |
|---|---|---|---|
| C45 | 1.0503 | C 0.42–0.50 · Mn 0.50–0.80 | General machine parts |
| 41Cr4 | 1.7035 | C 0.38–0.45 · Cr 0.90–1.20 | Axles, shafts, gears |
| 42CrMo4 | 1.7225 | C 0.38–0.45 · Cr 0.90–1.20 · Mo 0.15–0.30 | Crankshafts, bolts, hydraulics |
| 34CrNiMo6 | 1.6582 | C 0.30–0.38 · Cr 1.30–1.70 · Ni 1.30–1.70 · Mo 0.15–0.30 | Heavy-duty shafts |
| 30CrNiMo8 | 1.6580 | C 0.26–0.34 · Cr 1.80–2.20 · Ni 1.80–2.20 · Mo 0.30–0.50 | Defense, high-strength parts |
Values are typical ranges from the relevant standards; exact values are provided with the mill certificate of each delivery.
Applications
- Crankshafts and Axles
- Bolts and Nuts
- Gears and Pinions
- Hydraulic Cylinder Parts
- Forgings
- Defense Industry
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