ASTM F90

This specification covers the chemical, mechanical, and metallurgical requirements for wrought cobalt-20chromium-15tungsten-10nickel alloy bars, rods, wires, sheets, and strips (except surgical fixation wires) for use in surgical implants. All alloys shall be furnished to the purchaser's specifications, in the annealed or cold-worked condition. Then, bars and wires shall be finished bright annealed, cold drawn, pickled, ground, or ground and polished, as specified by the purchaser. While, sheets shall be furnished bright annealed, pickled, cold-rolled, or polished, as specified by the purchaser. The alloys shall adhere to specified values of ultimate tensile strength, yield strength, elongation, and microcleanliness.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

1. Scope

1.1 This specification covers the requirements for wrought cobalt-20chromium-15tungsten-10nickel alloy used for surgical implants. The properties specified apply specifically to wrought bar, rod, wire, sheet, and strip, but do not apply to surgical fixation wire (see Specification F 1091).

1.2 The values stated in inch-pound units are to be regarded as the standard. The SI equivalents in parentheses are for information only.

2. Referenced Documents

A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E354 Test Methods for Chemical Analysis of High-Temperature, Electrical, Magnetic, and Other Similar Iron, Nickel, and Cobalt Alloys
E45 Test Methods for Determining the Inclusion Content of Steel
E8 Test Methods for Tension Testing of Metallic Materials
F1091 Specification for Wrought Cobalt-20Chromium-15Tungsten-10Nickel Alloy Surgical Fixation Wire [UNS R30605]
F2527 Specification for Wrought Seamless and Welded and Drawn Cobalt Alloy Small Diameter Tubing for Surgical Implants (UNS R30003, UNS R30008, UNS R30035, UNS R30605, and UNS R31537)
F981 Practice for Assessment of Compatibility of Biomaterials for Surgical Implants with Respect to Effect of Materials on Muscle and Bone
AMS2269 Chemical Check Analysis Limits, Wrought Nickel Alloys and Cobalt Alloys
AMS5759 Cobalt Alloy, Corrosion and Heat Resistant Bars, Forgings, and Rings, 52Co - 20 Cr - 10Ni - 15W, Solution Heat Treated
C1 Specification of General Requirements for a Quality Program
ISO 5832-5 Wrought Cobalt-Chromium-Tungsten-Nickel Alloy
ISO 6892 Metallic Materials Tensile Testing at Ambient Temperature
ISO9001 Quality System-Requirements

Index Terms

cobalt alloys (for surgical implants); cobalt chromium; L-605 alloy; metals (for surgical implants)-cobalt alloys; ICS Number Code 11.040.40

Citing ASTM Standards

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