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420J2/X46Cr13/4Cr13 stainless steel

420J2/X46Cr13/4Cr13 stainless steel

420J2 (X46Cr13 / 4Cr13) is a high-carbon martensitic stainless steel offering superior hardness and wear resistance after heat treatment, with moderate corrosion resistance. Compared to 420J1 (3Cr13), it contains higher carbon, allowing for increased strength and edge retention. It is widely used in applications requiring sharp edges, high polishability, and abrasion resistance.

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  • Benefits
  • Heat Treatment
  • Applications
  • Availability
  • Parameter
Benefits

Benefits:
High Hardness and Edge Retention: Achieves 50–56 HRC after heat treatment, ideal for blades and tools.
Good Wear and Abrasion Resistance: Performs well in high-friction applications.
Moderate Corrosion Resistance: Resists oxidation and corrosion in mildly aggressive environments.
Excellent Polishability: Suitable for products requiring a bright or mirror finish.
Cost-Effective and Versatile: Common in mass-produced consumer items and industrial tools.

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