Stainless Steel Balls: AISI 420
AISI 420 stainless steel balls demonstrate good wear characteristics and hardness, with slightly less hardness and greater corrosion resistance compared to 440C. Used in grinding media and industrial equipment. Available from 1.5mm to 50.8mm in grades 25 through 1000.
Chemistry
| Carbon | Chromium | Manganese | Phosphorus | Sulfur | Silicon |
|---|---|---|---|---|---|
| 0.15% | 12% – 14% | 1.0% | 0.04% | 0.03% max | 1.0% |
Characteristics
Good wear characteristics and hardness. Magnetic. Slightly less hardness than 440C with greater corrosion resistance.
Corrosion Resistance
Excellent resistance to mild atmospheres, fresh water, steam, blood, ammonia, petroleum products, and mild acidic environments.
Typical Hardness
Rockwell C 48-52
Ball Sizes
Available in sizes from 1.5mm to 50.8mm in grades 25 through 1000.
Industries Using AISI 420 Grade Balls
Grinding Media (industrial grinding applications), Industrial Equipment (general industrial use), Medical (blood contact components), Petroleum (petroleum products environments), Fresh Water and Steam environments
Grades: 25 to 1000
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Medical and Surgical
Valves, bearings, sterilizing equipment, medical devices, blood-contact components
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Industrial and Manufacturing
Antifriction bearings, couplings, grinding media, conveyors, casters, industrial equipment
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Precision Bearings
Rolling element bearings, antifriction bearings, high-load bearing applications requiring max hardness
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Grinding Media
Industrial grinding applications
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Agricultural Equipment
Industrial and agricultural machinery, high-temperature resistance applications
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Petroleum and Energy
Petroleum products, organic materials, steam environments, high-temperature equipment
Lead Times
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Standard in-stock components are available for immediate shipment. Lead times for non-stock and custom orders are determined based on specific part size, material, and required quantity.
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Hartford Technologies specializes in high-volume production runs and industrial applications. We have a $400 minimum order value for all standard in-stock bearing balls. For custom-engineered parts and assemblies, the minimum is determined by the complexity and volume of the specific requirement.
