Hardness Class A3-20H Material Datasheet
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| Material Number | Material Name | Standard | Scope | Standard Status | Country | Predecessor | VDA 231-106 classification | Application temperature [°C] | |
|---|---|---|---|---|---|---|---|---|---|
| A3-20H (DIN EN ISO 3506-4 : 2026-06) | Hardness Class A3-20H | DIN EN ISO 3506-4 : 2026-06 | Supersedes DIN EN ISO 3506-4 : 2010-04 | Valid | Germany | Hardness Class A3-20H | 1.1.2 | -20 - 150 | 1) |
| 1) Remark: Stabilized austenitic steels of grade A3 are not suitable for use in non-oxidizing acid and agents with chloride content (swimmming pools, sea water). Application: kitchen equipment, apparatus for the chemical industry |
Chemical Composition
| C [%] | Cr [%] | Cu [%] | Mn [%] | Nb [%] | Ni [%] | P [%] | S [%] | Si [%] | Ti [%] | Remainder | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 1)2) |
| 1) Source: blur | |||||||||||
| 2) Remark: blur |
Mechanical Properties
| Condition | Temperature [°C] | Hardness HV | |
|---|---|---|---|
| blur | blur | blur | 1) |
| 1) Source: blur |
Cross Reference
| Material Name | Country | Standard |
|---|---|---|
| A3-20H | Europe | EN ISO 3506-4 |
| A3-20H | International | ISO 3506-4 |
Producer/Supplier/Trade names
| Tradename | Supplier |
|---|---|
| A3-20H | Adolf Würth GmbH&Co. KG, Künzelsau |
| A3-20H | Bossard Deutschland GmbH, Illerrieden |
| A3-20H | BUFAB Bulten Stainless AB, Svarta |
| A3-20H | BUMAX AB, Åshammar |
| A3-20H | F. REYHER Nchfg. GmbH & Co. KG, Hamburg |
| A3-20H | Lederer GmbH, Ennepetal |
| A3-20H | SFS Group AG, Heerbrugg |
| A3-20H | WASI GmbH, Wuppertal |