Overview

Despite being a stainless steels, hardened stainless steel can be greatly hardened through quenching and tempering treatment due to its high carbon content as well as a carbon steel. At present, Quenching and tempering is performed by an end-user after processing in most cases, but recent technology progress have enabled processing materials continuously and accurately even though it is quite hard, and the trend is changing toward productizing hardened steel strips by press working alone. Hardened stainless steel is our response to this customer demand.
*Hardening of SUS420J2 is primarily performed at our Shanghai factory.

• Suitable for Wear and Heat Resistant Applications.
  • This grade is best suited for wear-resistant stainless steel applications, and can be used for heat-resistant applications due to its high tempering resistance.
• Less Mechanical and Physical Anisotropy
  • Due to the effect of microstructural transformation, it has less mechanical and physical anisotropy than austenitic spring materials that are hardened by cold rolling.
• It allows for savings in thickness and width.
  • Due to being a martensitic stainless steel, it has a higher Young's modulus compared to non-ferrous or austenitic stainless steels for springs. This allows the thickness and width of leaf springs to be reduced.

• Applications/
  Manufacturable Shapes/Size
• Features
• Standards
• Chemical Compositions
• Physical Properties
• Mechanical Properties
• Advantages of TOKKIN

Examples of Applications

Springs, Industrial Knives, Scale, Soldering Irons, Scrapers, Doctor Blades, Spinning Machine

Manufacturable Shapes

Manufacturable Shapes

Thickness：　0.30～2.0mm
Width        ：　3.0～250mm

Features

Standards

Equivalent overseas standards are for reference only.

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Chemical Compositions

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Physical Properties

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Mechanical Properties

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Advantages of TOKKIN

TOKKIN's materials for Hardened Stainless Steels have the following advantages.

• Excellent Flatness　　
  The original quenching method provides wide width and excellent flatness.​
• High-precision thickness
  　Our materials are manufactured with precise thickness tolerances that cannot be achieved with general products manufactured based on JIS (Japanese Industrial Standards) and other standards.
• Small lot
  Our standard MOQ is 500kg or more.Please contact us for specific/additional requirements.
• Hardness can be adjusted upon your request.
  We can adjust material's hardness to your requested one.

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