Grade | Hardness in (HRC)2 in undiluted weld metal | Co in % | Cr in % | W in % | C in % | Ni in % | Mo in % | Fe in % | Si in % |
SDT 6 | 40-46 | Bal | 28.5 | 4.6 | 1.2 | <2.0 | <1.0 | <2.0 | <2.0 |
SDT 6LC | 38-44 | Bal | 29 | 4.5 | 1.1 | <2.0 | <1.0 | <2.0 | <2.0 |
SDT6HC | 43-53 | Bal | 28.5 | 4.6 | 1.35 | <2.0 | <1.0 | <2.0 | <2.0 |
SDT 1 | 51-60 | Bal | 30 | 13 | 2.5 | <2.0 | <1.0 | <2.0 | <2.0 |
SDT 156 | 46-54 | Bal | 28 | 4 | 1.7 | <2.0 | <1.0 | <0.5 | <2.0 |
SDT 12 | 43-53 | Bal | 30 | 8.5 | 1.45 | <2.0 | <1.0 | <2.0 | <2.0 |
SDT 21 | 27-40 | Bal | 27.5 | – | 0.25 | 2.6 | 5.4 | <2.0 | <2.0 |