Nitralloy 60 is an age hardenable nitriding steel. The age hardening capability of the alloy permits the core strength to be developed while the surface is being nitrided. VAC-ARC remelting is employed to provide preferred ingot solidification and superior micro-cleanliness.
| Weight % | C | Mn | Si | Ni | Cr | Mo | Al | Fe |
|---|---|---|---|---|---|---|---|---|
| Typical
Analysis |
0.24 | 0.60 | 0.30 | 3.50 | 1.15 | 0.25 | 1.25 | Reminder |
| Tensile | Hardness | ||||||
|---|---|---|---|---|---|---|---|
| Heat Treatment | Ultimate | Yield | Elongation | Reduction in Area | HRC | ||
| KSI | MPa | KSI | MPa | % | % | ||
| 1650°F (899°C), oil quench, temper 1200°F (649°C) | 132 | 910 | 115 | 793 | 22 | 59 | 29 |
| 1650°F (899°C), oil quench, temper 1200°F (649°C) +
age at 975°F (524°C) for 20 hours |
180 | 1241 | 170 | 1172 | 16 | 50 | 41 |
| 48 Hour Nitriding
(Aging) temperature |
Hardness | Charpy V-Notch Impact
Value at room temperature |
||
|---|---|---|---|---|
| °F | °C | Ft-lbs | Joules | |
| 940 | 504 | 42 | 12 | 16.3 |
| 970 | 521 | 42 | 14 | 19.0 |
| 1000 | 538 | 42 | 18 | 24.4 |