420 Stainless Steel
Hardenable high-chromium (~13%) martensitic stainless steel that combines good corrosion resistance with high hardness after quenching. Supplied annealed; quenches and tempers to 48–54 HRC. For injection molds for corrosive plastics, high-gloss molds and inserts. Its chromium forms a passive layer that protects it against corrosive plastics (PVC and engineering grades) and humid environments, while retaining good polishability.
| SAE / AISI | EN | DIN | JIS |
|---|---|---|---|
| 420 | X42Cr13 | 1.2083 | SUS420J2 |
| % | C | Si | Mn | Cr | P | S |
|---|---|---|---|---|---|---|
| Min | 0.36 | — | — | 12.50 | — | — |
| Max | 0.42 | 1.00 | 1.00 | 14.50 | 0.030 | 0.030 |
Hot forgedAnnealed
Hot rolledAnnealed
Plates1/2" – 10"13 mm – 254 mm
Round bars1" – 4"25 mm – 102 mm- Injection molds
- PVC molds
- Plastic molds
- Blow molds
- High-gloss molds
- Mold cavities
- Mold inserts
- Mold cores
- Extrusion dies
Note: The information and values in this data sheet are provided for reference only and may vary depending on manufacturing, treatment and application conditions. They do not constitute guaranteed specifications, so use and interpretation of this data is the user's responsibility.
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