Cobalt- Chrome

Scope
This information is representative of cobalt-chromium-molybdenum alloy high-strength forgings for hip prosthesis. The material is comparable to Specification ASTM-F75 and F-799. The reported properties are an average of all independent laboratory testing and represents a minimum of 500 tests.

Significance and Use
The purpose of this information is to identify a low cost alternative to forged CoCrMo product.

Mechanical Requirements
   The data in Table's  I through 4 compares the results of the Comtech Casting to the requirements of ASTM-F75 and F799. Grain size's are a minimum of five or finer.

Rationale
The Comtech Casting is the only alternative to a traditional forged product from wrought material currently. The reported tensile strengths are comparable with the minimum requirements of the wrought and forged specifications ASTM-F1537 and F799. The resulting microstructure is far superior in both carbide distribution and grain size. These results were achieved without incorporating hot isostatic pressing or solution annealing.