MARVALX12 Stainless maraging steels
Spécifications
- EU
X1CrNiMoAlTi12-9
- USA
UNS:S11800
Typical composition
- C
? 0.02
- Ni
9
- Cr
12
- Mo
2
- Ti
0,3
- Al
0,7
Applications
• Heavily stressed parts requiring good corrosion resistance and very good mechanical properties.
• Aerospace industry.
• Marine applications.
• Autoclaves and pressure chambers.
Mechanical properties
• Precipitation hardened stainless steel of very high purity, vacuum melted and consumable electrode remelted.
• Excellent mechanical properties in the longitudinal and transverse directions.
• Excellent balance between strength, toughness and fatigue properties, especially at the 1200 N/mm2 strength level (>PH13-8Mo).
• Good resistance to corrosion and stress corrosion.
• Good weldability.
Mechanical features
| Heat treatment | UTS (N/mm²) | A (%) | KV -60°C (J) |
|---|---|---|---|
| H + V 555°C | 1240 | 12,5 | 120 |
| H + V 520°C | 1430 | 10,5 | 45 |
- 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
X15U5W
Stainless steels with structural hardening
- Aero structures
Spécifications
- Common name : 15-5PH ; XM12
- EU : X5CrNiCu15-5
- USA : UNS:S15500
Heat treatment
- H + V 550°C
- H + V 620°C
Read more
MARVAL13X
Stainless maraging steels
- Aero engine
- Aero structures
- Brake system
- Fasteners
- Gear box
- Heligrid
- Landing grid
Spécifications
- Common name : PH13-8Mo ; XM13
- EU : X3CrNiMoAl13-8-2
- USA : UNS:S13800
Heat treatment
- H + V 540°C
- H + V 560°C
Read more
MARVALX12H
Stainless maraging steels
- Aero engine
- Aero structures
- Fasteners
- Heligrid
- Landing grid
Spécifications
- EU : X1CrNiMoAlTi12-10-2
- USA : UNS:S10120
Heat treatment
- H + V 510°C
- H + V 540°C
Read more
X15U5W
Stainless maraging steels
- Aero structures
Spécifications
- Common name : 15-5PH ; XM12
- EU : X5CrNiCu15-5
- USA : UNS:S15500
Heat treatment
- H + V 550°C
- H + V 620°C
Read more