Through hardening steels

RA50YW

Spécifications

Common name
M50
EU
80MoCrV42-16
USA
UNS: T11350
AISI: M50
AMS
6491
6490
AIR
E-80DCV40
WL
1.3551
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

See also

GKP

Steels for nitriding

50NILYW

Steels for carburizing

GKH

Steels for nitriding