Stainless Steel Balls
Stainless steel balls in 300-series and hardenable 420/440C grades for mechanical, fluid and corrosion-related applications.
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Product category imageProduct overview
Choose a stainless steel designation to suit the operating medium, then specify hardness, finish and dimensional tolerance. We produce stainless steel balls to agreed order specifications.
Material & condition comparison
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| Material / condition | Characteristics | Typical applications |
|---|---|---|
| Hardenable 400-series grades · 420A / 420B / 420C / 440C | Martensitic grades selected for hardness and wear resistance after suitable heat treatment. | Bearings, valves and mechanical components requiring wear resistance. |
| 300-series grades · 302 / 304 / 304L / 316 / 316L | Austenitic grades selected for corrosion resistance and chemical compatibility; specify delivery condition. | Food-processing equipment, medical devices and chemical systems, subject to application requirements. |
| 316 / 316L · within the 300 series | Options for more demanding corrosion conditions; assess the medium, chlorides and temperature. | Marine, high-humidity and hygienic systems after suitability review. |
Processing & surface options
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Materials & production options
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Product specifications
| Diameter range | 0.5–150 mm |
|---|---|
| Precision grade | G10–G1000 |
| Material family | 400 series: AISI 420A / 420B / 420C / 440C; 300 series: AISI 302 / 304 / 304L / 316 / 316L |
| Performance considerations | Corrosion resistance and chemical compatibility by alloy; wear resistance for hardened grades; surface cleanliness specified by application. |
Ranges describe the product family. Available material, diameter, grade and processing combinations are confirmed with the quotation.
Reference standards: ISO 3290 / DIN / AFBMA. Specify the exact document, part and edition with the order.
Include the diameter, tolerance, hardness, surface and inspection requirements from your drawing. The quotation and agreed order specification define the supply and acceptance requirements.
See our Steel Ball Size & Weight Conversion Chart ↗Application requirements
- Food processing and packaging equipment
- Medical and pharmaceutical devices
- Chemical and corrosion-resistant systems
- Pumps, valves and fluid control systems
- Marine and high-humidity environments
- Precision bearings and mechanical components
Food, medical, pharmaceutical and marine uses require application-specific material, cleanliness and compliance review. These examples do not constitute certification or universal suitability.