ASTM F90-23

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

ABSTRACT
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.
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.

General Information

• Status: Published
• Publication Date: 31-Mar-2023
• ICS: 11.040.40 - Implants for surgery, prosthetics and orthotics
• Technical Committee: F04 - Medical and Surgical Materials and Devices
• Drafting Committee: F04.12 - Metallurgical Materials

Relations

• Refers: ASTM F1091-20 - Standard Specification for Wrought Cobalt-20Chromium-15Tungsten-10Nickel Alloy Surgical Fixation Wire (UNS R30605)
• Effective Date: 01-Feb-2020
• Refers: ASTM A484/A484M-20a - Standard Specification for General Requirements for Stainless Steel Bars, Billets, and Forgings
• Effective Date: 05-May-2020

Standards Content (Sample)

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.
Designation: F90 − 23
Standard Specification for
Wrought Cobalt-20Chromium-15Tungsten-10Nickel Alloy for
1
Surgical Implant Applications (UNS R30605)
This standard is issued under the fixed designation F90; the number immediately following the designation indicates the year of original
adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* E8/E8M Test Methods for Tension Testing of Metallic Ma-
terials
1.1 This specification covers the chemical, mechanical, and
E29 Practice for Using Significant Digits in Test Data to
metallurgical requirements for wrought cobalt-20chromium-
Determine Conformance with Specifications
15tungsten-10nickel alloy used for surgical implants. The
E45 Test Methods for Determining the Inclusion Content of
properties specified apply specifically to wrought bar, rod,
Steel
wire, sheet, and strip, but do not apply to surgical fixation wire
E354 Test Methods for Chemical Analysis of High-
(see Specification F1091).
Temperature, Electrical, Magnetic, and Other Similar Iron,
1.2 The values stated in either SI units or inch-pound units
Nickel, and Cobalt Alloys
are to be regarded separately as standard. The values stated in
E539 Test Method for Analysis of Titanium Alloys by
each system may not be exact equivalents; therefore, to ensure
Wavelength Dispersive X-Ray Fluorescence Spectrometry
conformance with the standard, each system shall be used
E1409 Test Method for Determination of Oxygen and Nitro-
independently of the other, and values from the two systems
gen in Titanium and Titanium Alloys by Inert Gas Fusion
shall not be combined.
E1447 Test Method for Determination of Hydrogen in Re-
1.3 This standard does not purport to address all of the
active Metals and Reactive Metal Alloys by Inert Gas
safety concerns, if any, associated with its use. It is the Fusion with Detection by Thermal Conductivity or Infra-
responsibility of the user of this standard to establish appro-
red Spectrometry
priate safety, health, and environmental practices and deter- E1941 Test Method for Determination of Carbon in Refrac-
mine the applicability of regulatory limitations prior to use.
tory and Reactive Metals and Their Alloys by Combustion
1.4 This international standard was developed in accor-
Analysis
dance with internationally recognized principles on standard- E2994 Test Method for Analysis of Titanium and Titanium
ization established in the Decision on Principles for the
Alloys by Spark Atomic Emission Spectrometry and Glow
Development of International Standards, Guides and Recom- Discharge Atomic Emission Spectrometry (Performance-
mendations issued by the World Trade Organization Technical
Based Method)
Barriers to Trade (TBT) Committee. E2371 Test Method for Analysis of Titanium and Titanium
Alloys by Direct Current Plasma and Inductively Coupled
2. Referenced Documents
Plasma Atomic Emission Spectrometry (Performance-
2
2.1 ASTM Standards: Based Test Methodology)
A484/A484M Specification for General Requirements for E2626 Guide for Spectrometric Analysis of Reactive and
3
Stainless Steel Bars, Billets, and Forgings Refractory Metals (Withdrawn 2017)
A555/A555M Specification for General Requirements for F981 Practice for Assessment of Compatibility of Biomate-
Stainless Steel Wire and Wire Rods rials for Surgical Implants with Respect to Effect of
Materials on Muscle and Insertion into Bone
F1091 Specification for Wrought Cobalt-20Chromium-
1
This specification is under the jurisdiction of ASTM Committee F04 on
15Tungsten-10Nickel Alloy Surgical Fixation Wire (UNS
Medical and Surgical Materials and Devices and is the direct responsibility of
Subcommittee F04.12 on Metallurgical Materials.
R30605)
Current edition approved April 1, 2023. Published April 2023. Originally
IEEE/ASTM SI 10 American National Standard for Metric
approved in 1968. Last previous edition approved in 2014 as F90 – 14. DOI:
Practice
10.1520/F0090-23.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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F90 − 23
4
2.2 Aerospace Material S
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F90 − 14 F90 − 23
Standard Specification for
Wrought Cobalt-20Chromium-15Tungsten-10Nickel Alloy for
1
Surgical Implant Applications (UNS R30605)
This standard is issued under the fixed designation F90; the number immediately following the designation indicates the year of original
adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
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 SI units in this standard are the primary units. Values in primary SI or secondary 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
therefore, to ensure conformance with the standard, each system shall be used independentindependently of the other.
Combiningother, and values from the two systems may result in non-conformance with the specification.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
2
2.1 ASTM Standards:
A484/A484M Specification for General Requirements for Stainless Steel Bars, Billets, and Forgings
A751A555/A555M Test Methods and Practices for Chemical Analysis of Steel ProductsSpecification for General Requirements
for Stainless Steel Wire and Wire Rods
E8/E8M Test Methods for Tension Testing of Metallic Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E45 Test Methods for Determining the Inclusion Content of Steel
E354 Test Methods for Chemical Analysis of High-Temperature, Electrical, Magnetic, and Other Similar Iron, Nickel, and
Cobalt Alloys
E539 Test Method for Analysis of Titanium Alloys by Wavelength Dispersive X-Ray Fluorescence Spectrometry
E1409 Test Method for Determination of Oxygen and Nitrogen in Titanium and Titanium Alloys by Inert Gas Fusion
E1447 Test Method for Determination of Hydrogen in Reactive Metals and Reactive Metal Alloys by Inert Gas Fusion with
Detection by Thermal Conductivity or Infrared Spectrometry
1
This specification is under the jurisdiction of ASTM Committee F04 on Medical and Surgical Materials and Devices and is the direct responsibility of Subcommittee
F04.12 on Metallurgical Materials.
Current edition approved Nov. 1, 2014April 1, 2023. Published January 2015April 2023. Originally approved in 1968. Last previous edition approved in 20092014 as
F90 – 09.F90 – 14. DOI: 10.1520/F0090-14.10.1520/F0090-23.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F90 − 23
E1941 Test Method for Determination of Carbon in Refractory and Reactive Metals and Their Alloys by Combustion Analysis
E2994 Test Method for Analysis of Titanium and Titanium Alloys by Spark Atomic Emission Spectrometry and Glow Discharge
Atomic Emission Spectrometry (Performance-Based Method)
E2371 Test Method for Analysis of Titanium and Titanium Alloys by Direct Current Plasma and Inductively Coupled Plasma
Atomic Emission Spectrometry (Performance-Based Test Methodology)
3
E2626 Guide for Spectrometric Analysis of Reactive and Refractory Metals (Withdrawn 2017)
F981 Practice for Assessment of Compatib
...