Application Focus

Automobile Components

Improving load-carrying capacity, wear resistance, and high-cycle fatigue life of critical shafts, gears, valves, and precision engine fittings.

The Challenge and Solutions

Automotive parts are engineered to perform under strict tolerances. Over time, friction, mechanical loading, and exposure to oils or environmental elements lead to surface degradation. Shital Plasma Nitriding is a critical process for automotive manufacturers, providing a functional surface that improves the load-carrying capacity and fatigue life of critical components.

By forming a precise, wear-resistant compound layer over a tough diffusion zone, we protect critical moving parts from premature friction-induced failure.

Automobile Component 1 Automobile Component 2

How We Solve Automotive Component Challenges

Problem Faced Mechanism of Plasma Nitriding Solution
Scratch Mark Produces a superior surface finish with high lubricity, reducing friction between mating parts and preventing the development of surface scoring or scuffing.
Wear & Tear Creates a hard, diffusion-strengthened surface that resists abrasive and adhesive wear, significantly extending the service life of gears, shafts, and bushings.
Corrosion of Components Establishes a dense, inert nitride barrier that protects components against oxidation, moisture, and the corrosive additives found in lubricants and fuels.

Material Specifications for Automotive Components

Automotive components are manufactured from diverse materials, including alloy steels for gears and stainless steels for fuel system parts. The following specifications are tailored to ensure that these components meet the high-cycle fatigue requirements of modern vehicles.

Material / Grade Application Area Target Surface Hardness Recommended Case Depth
AISI 4140 / 4340 Shafts, Gears & Axles 600 – 750 HV 0.20 – 0.40 mm
AISI 8620 Case-Hardened Gears 700 – 850 HV 0.25 – 0.50 mm
Cast Iron Cast Iron Body 450 – 800 HV 0.05 – 0.10 mm
Low Alloy Steels - 16MnCr5 / 20MnCr5 Components 600 – 700 HV 0.10 – 0.25 mm
MS / C45 / En8 Components 300 – 450 HV 0.05 – 0.10 mm
En19 / En24 Components 600 – 800 HV 0.10 – 0.30 mm
Nitriding Steels (e.g., 34CrAlNi7) High-Stress Engine Components 950 – 1150 HV 0.20 – 0.45 mm
Note: For dynamic automotive parts, we prioritize the balance between the surface "compound layer" and the "diffusion zone." Our process is calibrated to provide maximum fatigue strength and surface hardness, ensuring your components maintain their dimensional integrity throughout their operational life.