Nitriding Steels
1.8550 Standards DIN 34CrAlNi7-10
Chemical Composition
Applications
It is used in screw and sleeve parts of plastic injection machines, injection shafts, gears and machine parts.
Heat Treatment Properties
- Stress Relief °C
- - Soft Annealing °C
650-700 - Delivery Hardness HRc
27-33 - Tempering
580-700 °C - Nitriding
480-570 °C
Hardness
- Austenitizing °C
850-900 - Cooling
Oil
Hardness After Hardening
- HRC
-
| Tempering °C | 100 | 200 | 300 | 400 | 500 |
| HRC | 61 | 59 | - | - | - |
| (Hardened tempered) Size Ø mm | Yield Strength N/mm2 | Tensile Strength N/mm2 | Min. Elongation | Impact Strength Joule/min. |
Surface hardness after nitration (HV) |
| 16≤d≤40 | 680 | 900-1100 | 10 | 30 | 900-1000 |
| 40≤d≤100 | 650 | 850-1000 | 12 | 30 | 900-1000 |
| 100≤d≤160 | 600 | 850-1000 | 13 | 35 | 900-1000 |
| 160≤d≤250 | 600 | 800-1000 | 13 | 35 | 900-1000 |
Other Nitriding Steels
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