Nitralloy 135 Modified, as it is commonly known, is a low alloy nitriding steel grade with moderate hardenability. It was designed to provide a high case hardness while maintaining its core strength during nitriding. VAC-ARC and VIM-VAR melting procedures tend to yield the most preferred ingot solidification, as well as superior cleanliness. Aerospace applications, including gears, crankshafts, cams and bolts.
| Specification | Description |
|---|---|
| AMS 6470 | Nitriding Steel Bars and Forgings. |
| AMS 6471 | Nitriding Steel Bars and Forgings. Normalized and Tempered. |
| AMS 6472 | Nitriding Steel Bars and Forgings. Hardened and Tempered to 112ksi min. |
| MIL-S-6709 | Nitriding Steel Bars and Forgings. Aircraft Quality. |