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420J1/X30Cr13/3Cr13 stainless steel

420J1/X30Cr13/3Cr13 stainless steel

420J1 (X30Cr13 / 3Cr13) is a low-carbon martensitic stainless steel known for its good balance of corrosion resistance, hardness, and toughness. Compared with standard 420 (2Cr13), it contains slightly higher carbon and chromium, allowing for better hardness and wear resistance after heat treatment. It is widely used in cutlery, medical instruments, and mechanical parts requiring sharp edges and polishability.

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  • Benefits
  • Heat Treatment
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  • Parameter
Benefits

Benefits:
Good Corrosion Resistance: Performs well in mildly corrosive environments such as fresh water, food, and atmospheric exposure.
Moderate to High Hardness: Can be heat-treated to achieve 48–54 HRC, suitable for sharp-edged tools and blades.
Excellent Polishability: Often used in decorative and mirror-finish applications due to its smooth surface quality.
Decent Toughness and Machinability: Good balance of strength and formability in the annealed state.
Cost-Effective Stainless Option: Commonly used in mass-market consumer goods and hardware.

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