MARVAL18 Maraging steels
Spécifications
- Common name Maraging 250
- EU X2NiCoMo18-8-5
- USA UNS:K92890
Typical composition
- C 0,03
- Ni 18
- Mo 5
- Ti 0,5
- Co 8
Applications
• Aerospace industry:
High strength parts:
– Structural components
– Welded assemblies
– Deck landing hooks
– Rocket motor bodies
– Defence components
– Fasteners.
Mechanical properties
• Precipitation hardened, maraging type steel, vacuum melted and consumable electrode remelted.
• High yield strength and good impact strength.
• Good weldability.
• Surface hardening by nitriding is possible.
Mechanical features
- Heat treatmentHH + V 480°C
- UTS (N/mm²)10701850
- A (%)149
- KCU (J/cm²)-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
MARVAL18_GB
Download
(PDF, 305 KB)
