The main feature of 18%Ni maraging steels is good tensile and toughness properties for various levels of resistance. The number accompanying the steel name matches its Theoretical Yield Strength at 0.2% strain in ksi. This unique characteristic is achieved by precipitation hardening, in a tough martensitic die, after a simple aging heat treatment. Used in a wide range of applications, such as racing cars, aerospace and military sectors, as well as in springs and tools.
- ABTN | ASTM | SAE | AISI: Marging 250 | ASTM A579 | GR. 72 | MAS 6512 | MIL-S-46850D | UNS K92890
- DIN | WNr: -
- Chemical composition:
C % | Si % | Mn % | Cr % | Ni % | Fe % | Cu % | Ti % | Al % | OTHERS % |
máx. 0.01 | máx. 0.10 | máx. 0.10 | - | 18.0 | Rest. | - | 0.45 | 0.10 | Co=8.00 |
