Nitralloy 135M

UNS #K24065

Nitralloy 135M VAC-ARC steel is a low alloy nitriding grade with moderate hardenability designed to provide a high case hardness and to maintain its core strength during the nitriding cycle. VAC-ARC remelting is employed to provide preferred ingot solidification and superior microcleanlieness.

Type Analysis

  • Carbon (Nominal) 0.4
  • Silicon (Nominal) 0.3
  • Manganese (Nominal) 0.6
  • Chromium (Nominal) 1.6
  • Molybdenum (Nominal) 0.35
  • Iron (Nominal) Balance
  • Aluminum (Nominal) 1.2


Aircraft gears, shafts, pinions, crankshafts, cams, camshafts, and bolts

Applicable Specifications

  • AMS 6470 (Air Melt)
  • AMS 6471
  • AMS S-6709 (Air Melt)
  • 299-947-036
  • 299-947-083
  • B50TA314




Browse our growing library of resources including case studies, product brochures, technical data sheets, product selection guides and more.