This specification covers the requirements for wrought cobalt-20chrom-15 tungsten-10nickel alloy used for surgical implants. The specified specifications apply specifically to forged rod, rod, wire, sheet and strip, but not to surgical fixation wire.
All alloys shall be furnished to buyer's specifications in the annealed or cold worked condition. The rods and wires will then be bright annealed, cold drawn, pickled, ground or ground and polished as specified by the purchaser. Sheets shall be laid as bright annealed, pickled, cold rolled or polished as specified by the purchaser. Alloys will comply with the specified ultimate tensile strength, yield strength, elongation and microcleanliness.
Values stated in inch-pound units should be considered standard. Values in parentheses are mathematical conversions to non-standard SI units, provided for informational purposes only.
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