What is 420 J2 stainless steel?
Feb 25, 2026
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Stainless steel grade 420J2 is inexpensive and highly corrosion resistant steel. It has good corrosion resistance in mild atmosphere as well as domestic and industrial environments. It is also resistant to dilute nitric acid, carbonic acid, ammonia, crude oil, detergent solutions, vinegar, food acids, several petroleum products, and steam.
Stainless steel grade 420J2 is known to possess good strength and reasonable impact resistant properties in hardened and tempered conditions when compared with 440 grades.
Chemical Composition
The chemical composition of stainless steel grade 420J2 is outlined in the following table.
| Element | Content (%) |
|---|---|
| Chromium, Cr | 14 |
| Nickel, Ni (optional) | 1 |
| Manganese, Mn | 1 |
| Silicon, Si | 1 |
| Phosphorus, P | 0.04 |
| Carbon, C | 0.15-0.36 |
| Sulfur, S | 0.03 |
| Iron, Fe | Balance |
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