Stainless steels with structural hardening
MARVALX12H
Spécifications
EU
X1CrNiMoAlTi12-10-2
USA
UNS: S10120
AMS
5935
ISO Symbol
X1CrNiMoAlTi12-10-2
ISO Num
1.4596
Composition
C
< 0.02
Ni
10
Cr
12
Mo
2
Ti
0.3
Al
0.9
Applications
• Very heavily stressed parts requiring good corrosion resistance and very good mechanical properties.
• Aerospace industry.
Characteristics
• 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 1400 N/mm2 strength level (>PH13-8Mo).
• Good resistance to corrosion and stress corrosion.
• Good weldability.
Mechanical properties
| Heat treatment |
UTS (N/mm²) |
0,2% YS (N/mm²) |
A (%) |
KV (J) |
|---|---|---|---|---|
| H + V 540°C | 1440 | 1370 | 10.5 | 60 |
| H + V 510°C | 1570 | 1490 | 10 | 35 |
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 |