Precision Gas Nitriding Service
In-House Vertical Pit Furnace Gas Nitriding achieving 65 - 70 HRC (950 - 1050 HV) surface hardness for components up to 6,000 mm with minimum thermal distortion.
Vertical Pit Furnace Gas Nitriding in Ahmedabad
At Rajlaxmi Industries, we operate specialized vertical pit gas nitriding furnaces engineered specifically for long shafts, screws, cylinders, and barrels up to 6 meters in length. Components are vertically suspended during the entire thermal cycle, completely preventing horizontal sag or bending distortion.
The process introduces active nascent nitrogen into the steel surface under controlled ammonia (NH3) dissociation atmospheres at temperatures between 500°C and 540°C. This forms a hard compound white layer and a deep nitrogen diffusion zone without requiring oil/water quenching.
Surface Hardness
950 - 1050 HV 65 to 70 HRC equivalentEffective Case Depth
0.5 - 0.7 mm Deep diffusion zone
Vertical Furnace Advantage
Vertical suspension eliminates shaft warping, preserving precision run-out tolerances within 0.02 mm.
Advantages of Gas Nitriding with Rajlaxmi Industries
Extreme Wear Resistance
Forms ultra-hard alloy nitrides (CrN, Mo2N, AlN) providing supreme protection against abrasive polymer sliding wear.
Low Thermal Distortion
Executed below the lower critical transformation temperature (no phase change), keeping dimensional changes negligible.
Heat & Anti-Galling Stability
Retains high surface hardness even during prolonged operation at temperatures up to 500°C without softening.