Hardness Class D4-21H Material Datasheet
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| Material Number | Material Name | Standard | Scope | Standard Status | Country | VDA 231-106 classification | Application temperature [°C] | |
|---|---|---|---|---|---|---|---|---|
| D4-21H (DIN EN ISO 3506-3 : 2026-06) | Hardness Class D4-21H | DIN EN ISO 3506-3 : 2026-06 | Supersedes DIN EN ISO 3506-3 : 2010-04 | Valid | Germany | 1.1.2 | -20 - 150 | 1) |
| 1) Remark: Set screws and similar fasteners not under tensile stress made from corrosion resistant duplex stainless steel. |
Chemical Composition
| C [%] | Cr [%] | Cu [%] | Mn [%] | Mo [%] | N [%] | Ni [%] | P [%] | S [%] | Si [%] | 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 |
|---|---|---|
| D4-21H | Europe | EN ISO 3506-3 |
| D4-21H | International | ISO 3506-3 |
Producer/Supplier/Trade names
| Tradename | Supplier |
|---|---|
| D4-21H | Adolf Würth GmbH&Co. KG, Künzelsau |
| D4-21H | Bossard Deutschland GmbH, Illerrieden |
| D4-21H | GEVAG GmbH, Hagen |
| D4-21H | Joseph Dresselhaus GmbH & Co. KG, Herford |
| D4-21H | Otto Eichhoff GmbH & Co. KG, Lüdenscheid |
| D4-21H | Wilhelm Böllhoff GmbH & Co. KG, Bielefeld |