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Medical grade ASTM F1537 alloy 1 UNS R31537 CoCrMo round bar manufacture

Short Description:

This alloy of Cobalt-Chromium-Molybdenum for implants is the MicroMelt Biodur Carpenter CCM alloy (Cobalt CCM ASTM F1537). It meets the strictest requirements regarding biocompatibility and corrosion resistance. It is produced by powder metallurgy resulting in an exceptionally fine microstructure. But is also tough, ductile, hard, as well as fatigue and wear resistant. Its high cobalt content may impair its machinability and its cold deformability is difficult. It is non-magnetic.

Cobalt CCM ASTM F1537 is especially applicable for medical implants (endoprothesis and osteosynthesis) wherever high mechanical stress is expected. It is also widely used in the watch making industry as well as other industries where hardness, toughness, ductility and corrosion resistance are required.

Product Detail

Product Tags


CCM Impant grade is available in precision ground round bar. Size range: 2.00mm - 110.00mm diameter.


▪ Material No. CCM MicroMelt
▪ DIN Abbreviation CoCr28Mo
▪ AFNOR CoCr28Mo
▪ AISI/SAE/ASTM ASTM F1537 alloy 1 ASTM F899
▪ ISO 5832-12
▪ ASTM F75 Powder
▪ Others UNS R31537

Chemical Composition

Weight % C Si Mn Cr Mo Ni Fe N Co
CoCr28Mo 0.14 max 1 max 1 max 26.00-30.00 5.00-7.00 1 max 0.75 max 0.25 max Bal
ASTM F1537 0.14 max 1 max 1 max 26.00-30.00 5.00-7.00 1 max 0.75 max 0.25 max Bal

Mechanical Properties

Grade UTS (Mpa) Yield Strength (Mpa) Elongation 4D (%) Hardness
ISO 5832-12 1192 min 827 min 12 40 HRC

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