420 Stainless Steel Balls
Profile:The 420 stainless ball is made of high-carbon martensitic steel, which has been quenched and tempered at low temperature, combining high hardness with moderate toughness, and the surface can be precisely ground to a mirror finish. It is suitable for high-stress parts such as gears, valve seals, and mold guide pillars, avoiding strong acid corrosion, meeting the needs of precision machining, and ensuring wear resistance and dimensional stability.
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| Material | ASTM / AISI | YB | JIS | DIN | |||
|---|---|---|---|---|---|---|---|
| Conversion | 420 | 2Cr13 | SUS420J1 | 1.4021 | |||
| Composition | C | Cr | Mn | Si | P | S | Ni |
| 0.015%Max | 12-14% | 1.0%Max | 1.0%Max | 0.04%Max | 0.03%Max | —— | |
| Mechancial Properties | Tensile Strength | 95,000 – 250,000 psi | |||||
| Yield Strength | HRC48 | ||||||
| ELONGATION IN TWO INCHES | 8%-25% | ||||||
| Modulus of Elasticity | 29,000,000 PSI | ||||||
| Rededuction area | 25%-50% | ||||||
| Density | 0.279 Ibs/cu in | ||||||
| Physical Property | Corrosion resistance | Fair | |||||
| Magnetic | Yes | ||||||