ML18PQ Non stainless maraging steels
Spécifications
- EU
X2NiCoMo18-8-5
- USA
UNS:K92890
Typical composition
- C
?0,03
- Ni
18
- Mo
5
- Ti
0,5
Applications
• High strength and fatigue stressed rotation parts, mainly used for turbine shafts, compressor shafts.
Mechanical properties
• Precipitation hardened margaging steel vacuum melted and consumable electrode remelted
• High yield strength and good impact strength
• Good weldability, high cycle fatigue
• Surface hardening by nitriding is possible.
Mechanical features
| Heat treatment | UTS (N/mm²) | A (%) | KCU (J/cm²) |
|---|---|---|---|
| H + V 480°C | 1850 | 9 | 40 |
- Solution treated : H
Annealed : R - Thermo-mechanical treatment : TM
Quenched and tempered : T+RV - Sub-zero treatment : F
Solution treated and aged : T+RV
