Stainless steels with structural hardening
X15U5W
Spécifications
Common name
15-5PH XM12
EU
X5CrNiCu15-5
USA
UNS: S15500
AMS
5659
WL
1.4545
ASTM grade
XM12
ASTM std
A564
Composition
C
< 0.07
Ni
5
Cr
15
Cu
3
Nb
0.3
Applications
• Forgings and mechanical parts in stainless steel requiring very good mechanical properties as well as good resistance to fatigue and sudden rupture.
Better coefficient of friction than austenitic stainless steels.
Characteristics
• Precipitation hardened martensitic stainless steel.
• Melting: consumable electrode remelted steel.
• Good mechanical properties in the longitudinal and transverse directions.
• Excellent toughness, ductility and fatigue properties.
• Good resistance to various corrosive agents.
• Good weldability.
Mechanical properties
| Heat treatment |
UTS (N/mm²) |
0,2% YS (N/mm²) |
A (%) |
KV (J) |
|---|---|---|---|---|
| H + V 550°C | 1120 | 1060 | 15 | 130 |
| H + V 620°C | 950 | 750 | 16 | 160 |
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 |