instrument and implant grade metal alloys

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BiodurĀ® CCM (CoCr28Mo) Medical Alloy

Cobalt-Chromium-Molybdenum (CCM) alloy meets the strictest biocompatability and corrosion resistance requirements for the medical industry. It is produced by powder metallurgy which gives it an exceptionally fine microstructure. Its high cobalt content may impair its machinability and cold forming is difficult but it does exhibit high levels of toughness, hardness, fatigue resistance and wear resistance.


Medical implants
Endoprosthesis devices
Osteoprosthesis devices
Watch making

Typical Chemical Composition

C Si Mn Cr Mo Ni N Co
Min 26.00 5.00
Max 0.14 1.00 1.00 30.00 7.00 1.00 0.25 Balance

Typical Mechanical Properties

Spec Tensile (Rm)
Mpa (min)
Yield (R0.2%)
MPA (min)
A4d (%- min)
ISO 5832-12 1192 827 12 40 min


UNS R31537
DIN CoCr28Mo
ASTM F1537 Alloy 1
ISO 5832-12


Cobalt CCM Alloy is available in round bar from 2.00mm diameter up to 63.5mm diameter.

Disclaimer : Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.

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Metal Weight Calculator

Metal Alloy



NOTE: Weights calculated are theoretical. Manufacturing tolerances should be allowed for and results adjusted accordingly.