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_FR-1
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(PDF, 306 KB)
See also
819AW
Through hardening steels
- Gun barrels
- Missiles
- Plastic
- Polishing
- Transmission system
Spécifications
- EU : 35NiCrMo16
- USA : UNS : K57034
Heat treatment
- T + F + Rv 200°C
- T + Rv 650°C
Read more
MLX17
Stainless steels with structural hardening
- Aero engine
- Aero structures
- Blades
- Chassis
- Fasteners
- Land turbine
- Missiles
- Shaft
- tubes
Spécifications
- EU : X1CrNiMoAlTi12-11-2
- USA : UNS:S11000
Heat treatment
- H + V 510°C
- H + V 535°C
Read more
MLX19
Stainless steels with structural hardening
- Aero engine
- Blades
- Chassis
- Fasteners
- Land turbine
- Landing gear
- Missiles
- tubes
Spécifications
- EU : X1NiCrMoAlTi12-10-2
- USA : UNS:S11902
Heat treatment
- H + V 490°C
- H + V 510°C
Read more
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