Cobalt alloys

XSH

Spécifications

Common name
HS25
L605
EU
CoCr20W15Ni
USA
UNS: R30605
AMS
5537
5759
AIR
KC20WN
WL
2.4964
BS
HR40
HR240
ASTM std
F90

Composition

C
< 0.10
Ni
10
Cr
20
Mn
1.2
Co
Base
W
15
Fe
< 3.00

Applications

• Aerospace and land-turbine industry:
– gas turbine parts exposed to high temperatures: blades, combustion chambers, nozzles …

• Medical: Implants

Characteristics

Cobalt base superalloy with:
• Excellent corrosion resistance.
• In an electrolytic environment, the passive layer limits the galvanic effect to a very low level.

Mechanical properties

Heat
treatment
UTS
(N/mm²)
0,2%
YS
(N/mm²)
A
(%)
H 1005 460 45

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