Nitriding 135M VAR is a chrome moly alloy steel designed for applications which require wear and abrasion resistance. This is achieved through its high surface hardness and resistance to heat. Nitriding 135M is commonly suitable for temperatures up to 1000 deg. F.
Average Grain Size of ASTM No. 5 or finer
The Jominy Hardenability of each heat shall be:
50 HRC minimum at J 12/16 inch
46 HRC minimum at J 16/16 inch