Martensitic grade that hardens to high hardness with good wear resistance; for valves, cutlery and parts subject to friction.
The same grade is named differently in each standard. Use the table to check a match.
| System | Designation |
|---|---|
| AISI / ASTM | AISI 420 |
| EN material number | 1.4021 |
| EN steel name (DIN EN 10088) | X20Cr13 |
| UNS | S42000 |
| JIS | SUS420J1 |
Typical values, wt %, per EN 10088-2 and ASTM A240.
ASTM A240 minimums for annealed material; a dash means the value depends on product form.
Tell us the form, dimensions and quantity. We send a quote with an EN 10204 3.1 certificate on request.
The data is for guidance and does not replace the heat certificate. The binding values are those of the standard and the manufacturer's certificate.