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Gas Soft Nitriding: Enhanced Surface Hardness With Core Strength Preservation

Gas Soft Nitriding: Enhanced Surface Hardness with Core Strength Preservation

Improve surface hardness and fatigue resistance without compromising core toughness. Our gas soft nitriding service delivers uniform case depth and superior wear performance.

Gas soft nitriding is a low-temperature thermochemical treatment that diffuses nitrogen into the surface of steel components, creating a hard, wear-resistant case while maintaining ductile core properties. Ideal for parts requiring both fatigue resistance and structural integrity, gas soft nitriding optimizes performance for automotive, tooling, and industrial applications.

Key Benefits

  • Enhanced Surface Hardness
    Forms a uniform compound layer and diffusion zone to resist wear and abrasion.

  • Improved Fatigue Resistance
    Compressive residual stresses in the nitrided layer extend component fatigue life.

  • Core Strength Preservation
    Low process temperatures (500–580 °C) prevent tempering of the core, retaining original toughness.

  • Dimensional Stability
    Minimal distortion ensures tight tolerances without additional machining.

  • Cost-Effective Treatment
    No post-nitriding machining required; energy-efficient process reduces operational costs.

How It Works

  1. Preparation: Clean and degrease parts to ensure optimal nitrogen diffusion.

  2. Heating: Ramp temperature in an ammonia-rich atmosphere to 500–580 °C.

  3. Nitriding: Control gas composition and flow to achieve targeted case depth (0.1–0.6 mm).

  4. Cooling: Slow cooling under protective gas to avoid oxidation.

  5. Inspection: Measure case hardness, depth profile, and perform microstructure analysis.

Applications

  • Automotive Components: Camshafts, crankshafts, gears

  • Tooling & Dies: Punches, extrusion dies, cutting tools

  • Industrial Machinery: Shafts, rollers, bearings

  • Hydraulic & Pneumatic Parts: Pistons, valves, cylinders

Why Choose Our Gas Soft Nitriding Service?

  • Precision Control: Automated gas-flow and temperature systems for repeatable results

  • Quality Assurance: ISO 9001:2015-certified processes with full traceability

  • Flexible Capacity: Batch and continuous lines to accommodate small and large volumes

  • Technical Support: Metallurgical expertise for custom process development

  • Fast Turnaround: Optimized scheduling to meet tight production deadlines

Order Now
Strengthen your components’ surface performance while preserving core toughness. Contact us today for a quote and process consultation.