AISI 420A/420B Stainless Steel Balls
- Material: AISI420A/420B
- Diameter: 0.5mm-300.00mm;
- Precision Grade: G20,G40,G80,G100,G200, G500, G1000
- Hardness: HRC48-58
- Application: Similar to AISI 420C balls, hardness and wear resistance are lower when required.Special bearing, automobile safety belt, and spare parts, special pump, lighter, ballpoint pen. Balls of these materials resist in contact with water, steam, oil, and petrol. Corrosion Resistance：AISI 420A/420B steels offer a corrosion resistance similar to 420C steel.
| Physical Property | |
|---|---|
| Corrosion Resistant | Fair |
| Wear Resistant | Good |
| Magnetism | Yes |
| Technical Data | |
|---|---|
| Hardness | HRC 48 – 58 |
| Density | 7.73g/m3 |
| Young’s Modulus | 195GPa |
| Tensile Strength | 700-800MPa |
| Chemical Composition | |||||||
|---|---|---|---|---|---|---|---|
| Type | %C | %Si | %Mn | %P | %S | %Cr | %Mo |
| 420A | 0.16-0.25 | 1.00 max | 1.50 max | 0.040 max | 0.030 max | 12.00-14.00 | – |
| 420B | 0.26-0.35 | 1.00 max | 1.50 max | 0.040 max | 0.030 max | 12.00-14.00 | – |
| International Standard | |||||||
|---|---|---|---|---|---|---|---|
| USA | CHN | GER | FRA | UK | ITA | RUS | JAP |
| 420A | 2Cr13 | 1.4021 | Z 20 C 13 | 420 S 37 | X20Cr13 | 20 Kh 13 | 420J1 |
| 420B | 3Cr13 | 1.4028 | Z 33 C 13 | 420 S 45 | X30Cr13 | 30 Kh 13 | 420J2 |
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