Engineering steels are basically wrought steels intended for mechanical engineering and related technical applications. These require critical and often stringent levels of elasticity, strength, ductility, toughness and fatigue resistance. In some cases, resistance to high or low temperatures, expansion, corrosive and other aggressive environments may also be required.
Each material is carefully tailored to meet specific user requirements for properties and performance, and in some cases, to facilitate manufacturing and fabrication techniques. These techniques are then used to manufacture components or parts. The composition, process flow and heat treatment parameters are carefully selected to meet customer needs.
| Alloy | BÖHLER brand | WstNo. | UNS | ISO | AMS | ASTM | Others |
|---|---|---|---|---|---|---|---|
| 300M | V132 | 41SiNiCrMoV7-6 | 6257, 6414; 6419 | ||||
| 300MSi | V180 | 40SiNiCrMoV10-6 | 6499 | ||||
| 30CND8 | V145 | 1.6604, 1.6580 | G43400 | 30CrNiMo8 | 6484D | ||
| 9310 | E105 | 1.6657 | G93106 | 14NiCrMo13-4 | 6265 | ||
| LW1.6722 | E108 | LW1.6722 | BS:S82 | ||||
| – | V118 | 1.6745 | 40NiMoCr10-5 | BS:S99 | |||
| 4330 (MOD) | 4330 (MOD) | 1.6932 | – | 28NiCrMoV8-5 | – | A646 | – |
| 4340 | V124SC | 1.6944 | G43400 | ≈40NiCrMo6 | 6414, 6484 | E10 | |
| – | V129SA | 1.6952 | 24NiCrMoV14-6 | ||||
| F22 | F22 | 1.7380 | K21590 | 10CrMo9-10 | – | A182 | – |
| 15CDV6 | V354 | 1.7734, 1.7735, 1.7736 (ESU) | 14CrMoV6-9 | ||||
| E32CDV13 | V361 | ~1.7765 | 33CrMoV12 | 6481 | |||
| E40CDV12 | V358 | 1.8523 | 39CrMoV13-9 |