Ad
Nitriding Spec Table
Nitriding KS Specifications — 3 sizes
KS D 3867KS D 3753KS D 3706
KSNitriding
3 sizes| Material | Condition | Pre Hardness | Post Hardness | Case Depth | Application |
|---|---|---|---|---|---|
| SACM645 | 510~540°C × 50~100 | HB 250~280 | HV 900~1100 | 0.3~0.6mm | · Shaft·Precision Gear |
| SKD61 | 500~550°C × 30~60 | HRC 45~48 | HV 1000~1100 | 0.1~0.3mm | ForbiddenType Surface |
| SUS420J2 | 500~550°C × 20~40 | HRC 50~54 | HV 1100~1200 | 0.05~0.15mm | Machine· Shaft |
Nitriding diffuses nitrogen into the steel surface at 500–570 °C. Because no quenching is required, distortion is minimal, and the resulting case (HV 900–1200 at 0.05–0.6 mm) is extremely hard. SACM645 (Al-Cr-Mo) reaches HV 1100+, SKD61 dramatically extends die-casting mold life, and SUS420J2 suits medical and food-machine parts needing both corrosion and wear resistance. Processing takes 20–100 hours, but the parts require almost no finishing and gain fatigue strength as a bonus.