420/420C stainless steel ball are martensitic steel ball, which are magnetic and have high hardness. The Rockwell hardness of 420 material is HRC52-55, and that of 420C material is HRC54-60. 420/420C stainless steel ball of various steel ball grades have different precisions. We strictly test them according to the standards with high precision. The product has good rust prevention, low price, and wide application. It has good applications in various accessories and bearings.
f you are looking for a suitable 420C Stainless Steel Ball supplier, Kanda supplierwill be your good choice.We specialize in producing stainless steel balls of different specifications, sizes, and materials，For example, this 420/420C stainless steel ball has different precision and sizes. In addition, you can also choose 304 stainless steel ball, 316/316L stainless steel ball, and 440/440C stainless steel bals with better performance.
Key Technical Specifications：
Composition: chrome 12 – 14%, carbon 0.95 – 1.20%, manganese ≤ 1%, silicon ≤ 1%, P, S trace
Texture: Martensitic stainless steel, quenched and tempered
Hardness: Rockwell C 52 – 60 (after heat treatment)
Tensile strength: ≈ 2000 MPa (290000 psi)
Density:~7.70 g/cm ³
Corrosion resistance: good performance in fresh water, steam, weak acid and food environment; Not recommended for marine or chloride rich service
Magnetism: Magnetism in all states
advantage：
High hardness: excellent performance under high wear and stress conditions
Good corrosion resistance: suitable for moderate environment with wet and mild chemical medium
Durability: long life after proper heat treatment
Magnetic properties: suitable for specific industrial and mechanical applications
Cost-effective replacement: higher alloy stainless steel has cost advantage
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