Stainless Steel Balls: Corrtech, AISI-440C
CorrTech stainless steel balls are Hartford Technologies’ proprietary stainless steel variant providing high hardness, toughness, and dimensional stability with superior corrosion resistance not available from any other supplier. Ideal for antifriction bearings in high-corrosion environments. Available from 1mm to 50.8mm in grades 10 through 1000.
Chemistry
| Carbon | Chromium | Molybdenum |
|---|---|---|
| 0.95% – 1.20% | 16% – 18% | 0.75% max |
*Other elements based on proprietary Hartford Technologies formulation
Characteristics
Achieves hardness following heat treatment: Rockwell C 58-62. Passivated. Hartford proprietary grade exclusively available from Hartford Technologies.
Corrosion Resistance
Excellent resistance to mild acids, alkalis, foods, fresh water, and air. Superior performance in high-corrosion environments vs standard 440C.
Typical Hardness
Rockwell C 58-62 measured on parallel flats.
Ball Sizes
Available in sizes from 1mm to 50.8mm in grades 10 through 1000.
Industries Using Corrtech, AISI-440C Grade Steel
Precision Bearings (antifriction bearings in high-corrosion environments), Industrial Pumps and Valves (actuators, pumps where corrosion is a primary concern), Chemical Processing (aggressive corrosive environments requiring maximum hardness)
Grades: 10 to 1000 | Hartford proprietary — not available elsewhere
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Industrial and Manufacturing
Antifriction bearings, couplings, grinding media, conveyors, casters, industrial equipment
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Chemical Processing
Photographic chemicals, inks, textile bleaches, dye stuffs, sulphuric and phosphoric acid equipment
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Pumps and Valves
Check valves, pump seats, actuators, quick-disconnect couplings, plug balls
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Precision Bearings
Rolling element bearings, antifriction bearings, high-load bearing applications requiring max hardness
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.
