ASTM F90-23 - 1.4.2023
 
1. Scope

1.1?This specification covers the chemical, mechanical, and metallurgical 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 F1091).

1.2?The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.

1.3?This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.4?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

 
2. Referenced Documents

A751-21

Standard Test Methods and Practices for Chemical Analysis of Steel Products

E8/E8M-24

Standard Test Methods for Tension Testing of Metallic Materials

E29-22

Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

E45-18a(2023)

Standard Test Methods for Determining the Inclusion Content of Steel (Includes all amendments and changes 11/6/2023).

E354-21e1

Standard Test Methods for Chemical Analysis of High-Temperature, Electrical, Magnetic, and Other Similar Iron, Nickel, and Cobalt Alloys (Includes all amendments and changes 2/23/2022).

AMS?5759

Cobalt Alloy, Corrosion and Heat Resistant Bars, Forgings, and Rings, 52Co - 20 Cr - 10Ni - 15W, Solution Heat Treated

F981-23

Standard Practice for Assessment of Muscle and Bone Tissue Responses to Long-Term Implantable Materials Used in Medical Devices

F1091-20

Standard Specification for Wrought Cobalt-20Chromium-15Tungsten-10Nickel Alloy Surgical Fixation Wire (UNS R30605)

F2527-24

Standard 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)

IEEE/ASTM SI 10

American National Standard for Use of the International System of Units (SI): The Modern Metric System

AMS?2269

Chemical Check Analysis Limits, Wrought Nickel Alloys and Cobalt Alloys