Through hardening steels
RA50YW
Spécifications
Common name
M50
EU
80MoCrV42-16
USA
UNS: T11350
AISI: M50
AISI: M50
AMS
6491
6490
6490
AIR
E-80DCV40
WL
1.3551
1.3552
1.3552
Composition
C
0.83
Cr
4.15
Mo
4.25
V
1
Applications
RA50YW is used mainly in the manufacture of highly stressed aerospace bearings which could attain temperatures up to 300°C and which require good fatigue resistance.
Characteristics
• Vacuum melted and consumable electrode remelted steel.
• High level of hardness at ambient temperature.
• Good temper resistance up to 500°C.
• Good resistance to compression.
• High level of fatigue resistance.
Mechanical properties
Heat treatment |
Hardness HRC |
---|---|
T + 3xRv 550°C | 60 - 63 |
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 |