MARVAL18 Non stainless 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 treatment | UTS (N/mm²) | A (%) | KCU (J/cm²) |
|---|---|---|---|
| H | 1070 | 14 | |
| 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
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
MLX17
Stainless maraging steels
- 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 538°C
Read more
MLX19
Stainless maraging steels
- 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