Material – ASTM F 1537 Alloy 1

Standard Specification for Cobalt - 28Chromium - 6Molybdenum Alloys for Surgical

Implants

Group - Non-Ferrous Cobalt Alloys

Sub Group - ASTM F 1537 Alloy 1 Cobalt - 28Chromium - 6Molybdenum Alloys for Surgical Implants

Application - Intended for Valve, Pump, General Engineering, Automotive, Medical and other Industries

Grade Belongs to the Industry - Casting

Chemical Composition
CarbonC %0.140 max.
ChromiumCr %26.000 - 30.000
MolybdenumMo %5.000 - 7.000
NickelNi %1.000 max.
IronFe %0.750 max.
SiliconSi %1.000 max.
ManganeseMn %1.000 max.
CobaltCo %Balance
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Heat Treatment
As-Cast or Annealing
Mechanical Properties
Tensile Strength in Mpa897 min.
Yield Strength in Mpa517 min.
Elongation in %12 min.
Reduction of Area in %-
Hardness in HRC25 - 35 min.
Impact in Joule-

Cross Reference Table

Material Standard Country Grade Belong to the Industry
5832-12 Alloy 1 ISO International Casting
7402-2 JIS Japan Casting
F 2527 R31537 ASTM USA Casting
R31537 UNS USA Casting
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