Cobalt alloys

M64BC

Spécifications

EU
CoCr28Mo
USA
UNS: R31537
ASTM grade
Alloy 1
ASTM std
F1537

Composition

C
< 0.14
Ni
< 1.00
Cr
28
Mo
6
Co
Base

Applications

• Production of permanent surgical implants and any parts implanted in the human body.

Characteristics

• M64BC is a cobalt alloy with a high chromium and molybdenum content.
• Its high corrosion resistance makes it particularly suitable for the production of implants in contact with living tissue.
• Its composition has been optimised to enable it to be closed-die forged.
• The high level of mechanical strength that can be attained during this operation results in a steel with excellent fatigue properties while maintaining good toughness. It is therefore possible to produce very thin parts with a high level of safety.

Mechanical properties

Heat
treatment
UTS
(N/mm²)
0,2%
YS
(N/mm²)
A
(%)
H 1160 650 35
TM> 1175> 850> 14

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

XSH

Cobalt alloys

M30NW

Austenitic stainless steels