MLX19
Spécifications
Composition
Applications
• Forgings and mechanical parts in stainless steel requiring very good mechanical properties.
• Structural parts for the aerospace industry.
• Missile components.
• Fasteners.
• High pressure pumps and valves.
• Offshore industry.
Characteristics
• Precipitation hardened stainless steel of very high purity, vacuum primary melted and consumable electrode remelted.
• Excellent mechanical properties in the longitudinal and transverse directions.
• Excellent balance between strength and toughness properties, and excellent fatigue resistance.
• Good resistance to corrosion and stress corrosion.
• Very good weldability. Welding should preferably be carried out in the solution treated condition. Aging carried out after welding allows both the parent metal and weld bead to be hardened.
Mechanical properties
| Heat treatment |
UTS (N/mm²) |
0,2% YS (N/mm²) |
A (%) |
|---|---|---|---|
| H + V 510°C | 1890 | 1750 | 10 |
| H + V 490°C | 1930 | 1800 | 9 |
Key to heat treatment symbols
| Solution treated | H | Annealed | R |
|---|---|---|---|
| Thermo-mechanical treatment | TM | Quenched and tempered | T+RV |
| Sub-zero treatment | F | Solution treated and aged | H+V |