| Symbol | XW |
|---|---|
| Unit | - |
| Attribute-ID | dnv2003 welding factor X_W |
| Numeric ID | 1254 |
| Value Type | PMDouble |
DNV allocates this factor as follows:
| Material | XW |
| Quenched and tempered steels (default) | 1,0 |
| Phosphated steels | 1,25 |
| Copper-plated gears, nitriding steels | 1,5 |
| Case-hardened steels with less than 10% retained austenite content | 1,15 |
| Case-hardened steels with 10-20% retained austenite content | 1,0 |
| Case-hardened steels with 20-30% retained austenite content | 0,85 |
| Austenitic steels | 0,45 |
Source: Det Norske Veritas (DNV): Calculation of Gear Rating for Marine Transmissions, Classification Notes 41.2 - 2003/2012 edition