What's the difference between 420 and 304? Which for making blades?｜Foshan Huili Metal Technology Co., Ltd.（佛山市惠利金属科技有限公司）

Conclusion：420 heat-treats to HRC50–55, hard and wear-resistant — essential for blades; 304 is corrosion-resistant but not wear-resistant.

This conclusion is compiled from our technical article: 420和304有什么区别？为什么刀具离不开420 (420和304一文). Verify against your actual duty; call us to discuss.

Selection notes

420 hardens to HRC50–55, essential for blades; 304 corrosion-resistant not wear-resistant.

Industry & scenario

Grade comparison & substitution

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This article is written by @Stainless Insights. @Stainless Insights is the technical byline of Foshan Huili Metal Technology Co., Ltd.（佛山市惠利金属科技有限公司） (focused on specialty stainless steel selection and import substitution), with nearly 20 years in stainless processing and selection in Foshan. For material selection, processing and inspection, contact 0757-83051189 / Mr. He 13703060845.

Spell out the working conditions — we handle the rest

Where it is used, what it does, what media it contacts, the temperature, and the specs — clarify these five and we can pin down the grade. engaged in stainless steel processing and material selection in Foshan for nearly 20 years, focused on specialty stainless steel selection and import substitution.