ASTM F75-12

Standard Specification for Cobalt-28 Chromium-6 Molybdenum Alloy Castings and Casting Alloy for Surgical Implants (UNS R30075)

ABSTRACT
This specification covers the requirements for unfinished cobalt-28chromium-6molybdenum (UNS R30075) investment product alloy castings for surgical implant applications, and casting alloys of the same in the form of shot, bar, or ingots to be used in the manufacture of surgical implants. This specification does not apply to completed surgical implants made from castings. Both product castings and casting alloys shall conform to specified chemical composition and mechanical requirements including ultimate tensile strength, yield strength, elongation, and reduction of area. Product castings shall additional undergo liquid penetrant, radiographic, metallographic, and hardness examination.
SCOPE
1.1 This specification covers the chemical, mechanical, and metallurgical requirements for cobalt-28 chromium-6 molybdenum alloy unfinished investment product castings for surgical implant applications and casting alloy in the form of shot, bar, or ingots to be used in the manufacture of surgical implants. This specification does not apply to completed surgical implants made from castings.
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, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

General Information

• Status: Historical
• Publication Date: 14-May-2012
• 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

• Replaces: ASTM F75-07 - Standard Specification for Cobalt-28 Chromium-6 Molybdenum Alloy Castings and Casting Alloy for Surgical Implants (UNS R30075)
• Effective Date: 15-May-2012
• Referred By: ASTM F2027-16 - Standard Guide for Characterization and Testing of Raw or Starting Materials for Tissue-Engineered Medical Products
• Effective Date: 15-May-2012
• Referred By: ASTM F452-76(2022) - Standard Specification for Preformed Cranioplasty Plates
• Effective Date: 15-May-2012
• Referred By: ASTM F564-17 - Standard Specification and Test Methods for Metallic Bone Staples
• Effective Date: 15-May-2012
• Referred By: ASTM F2887-23 - Standard Specification for Total Elbow Prostheses
• Effective Date: 15-May-2012
• Referred By: ASTM F763-22 - Standard Practice for Short-Term Intramuscular Screening of Implantable Medical Device Materials
• Effective Date: 15-May-2012
• Referred By: ASTM F3018-17 - Standard Guide for Assessment of Hard-on-Hard Articulation Total Hip Replacement and Hip Resurfacing Arthroplasty Devices
• Effective Date: 15-May-2012
• Referred By: ASTM F1714-96(2018) - Standard Guide for Gravimetric Wear Assessment of Prosthetic Hip Designs in Simulator Devices
• Effective Date: 15-May-2012
• Referred By: ASTM F2665-21 - Standard Specification for Total Ankle Replacement Prosthesis
• Effective Date: 15-May-2012
• Referred By: ASTM F2083-21 - Standard Specification for Knee Replacement Prosthesis (Withdrawn 2023)
• Effective Date: 15-May-2012
• Referred By: ASTM F799-19 - Standard Specification for Cobalt-28 Chromium-6 Molybdenum Alloy Forgings for Surgical Implants (UNS R31537, R31538, R31539)
• Effective Date: 15-May-2012
• Referred By: ASTM F1357-23 - Standard Specification for Articulating Total Wrist Implants
• Effective Date: 15-May-2012
• Referred By: ASTM F2886-17(2023) - Standard Specification for Metal Injection Molded Cobalt-28Chromium-6Molybdenum Components for Surgical Implant Applications
• Effective Date: 15-May-2012
• Referred By: ASTM F1537-20 - Standard Specification for Wrought Cobalt-28Chromium-6Molybdenum Alloys for Surgical Implants (UNS R31537, UNS R31538, and UNS R31539)
• Effective Date: 15-May-2012
• Referred By: ASTM F3047M-23 - Standard Guide for High Demand Hip Simulator Wear Testing of Hard-on-Hard Articulations
• Effective Date: 15-May-2012

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:F75 −12
Standard Specification for
Cobalt-28 Chromium-6 Molybdenum Alloy Castings and
1
Casting Alloy for Surgical Implants (UNS R30075)
This standard is issued under the fixed designation F75; the number immediately following the designation indicates the year of original
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* E601 Test Method for Measuring Electromotive Force (emf)
Stability of Base-Metal Thermoelement Materials with
1.1 This specification covers the chemical, mechanical, and
Time in Air
metallurgical requirements for cobalt-28 chromium-6 molyb-
F629 Practice for Radiography of Cast Metallic Surgical
denum alloy unfinished investment product castings for surgi-
Implants
cal implant applications and casting alloy in the form of shot,
F981 Practice for Assessment of Compatibility of Biomate-
bar, or ingots to be used in the manufacture of surgical
rials for Surgical Implants with Respect to Effect of
implants. This specification does not apply to completed
Materials on Muscle and Bone
surgical implants made from castings.
3
2.2 Aerospace Material Specification:
1.2 The values stated in either SI units or inch-pound units
AMS 2248 Chemical CheckAnalysis Limits: Corrosion and
are to be regarded separately as standard. The values stated in
Heat Resistant Steels and Alloys, Maraging and Other
each system may not be exact equivalents; therefore, each
Highly-Alloyed Steels, and Iron Alloys
system shall be used independently of the other. Combining
AMS 2269 Chemical CheckAnalysis Limits: Nickel, Nickel
values from the two systems may result in non-conformance
Alloys and Cobalt Alloys
with the standard.
4
2.3 ISO Standards:
ISO 5832-4 Implants for Surgery—Metallic Materials—Part
2. Referenced Documents
4: Cobalt-Chromium-Molybdenum Casting Alloy
2
2.1 ASTM Standards:
ISO 6892 Metallic Materials—Tensile Testing at Ambient
A957 SpecificationforInvestmentCastings,SteelandAlloy,
Temperature
Common Requirements, for General Industrial Use
ISO 9001 Quality Management Systems—Requirements
E3 Guide for Preparation of Metallographic Specimens
E8/E8M Test Methods for Tension Testing of Metallic Ma-
3. Terminology
terials
3.1 Definitions of Terms Specific to This Standard:
E18 Test Methods for Rockwell Hardness of Metallic Ma-
3.1.1 investment casting, n—ametalcastingthatisproduced
terials
in a mold obtained by investing (surrounding) an expendable
E29 Practice for Using Significant Digits in Test Data to
pattern with a ceramic slurry that is allowed to solidify. The
Determine Conformance with Specifications
expendable pattern may consist of wax, plastic, or other
E165 Practice for Liquid Penetrant Examination for General
material and is removed prior to filling the mold with liquid
Industry
metal.
E354 Test Methods for Chemical Analysis of High-
3.1.2 master heat, n—a quantity of metal processed in a
Temperature,Electrical,Magnetic,andOtherSimilarIron,
Nickel, and Cobalt Alloys single furnace or refining vessel at one time in such a manner
E407 Practice for Microetching Metals and Alloys as to produce the desired composition and properties.
3.1.3 sub-heat, n—a portion of a master heat remelted
without additional processing for pouring into castings. Syn-
1
This specification is under the jurisdiction of ASTM Committee F04 on
onyms: melt, production heat.
Medical and Surgical Materials and Devices and is the direct responsibility of
Subcommittee F04.12 on Metallurgical Materials.
NOTE 1—Terminology section in accordance with Specification A957.
Current edition approved May 15, 2012. Published June 2012. Originally
approved in 1967. Last previous edition approved in 2007 as F75 – 075. DOI:
10.1520/F0075-12.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from Society of Automotive Engineers (SAE), 400 Commonwealth
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Dr., Warrendale, PA 15096-0001, http://www.sae.org.
4
Standards volume information, refer to the standard’s Document Summary page on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036, http://www.ansi.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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F75−12
4. Ordering Information 6. Chemical Requirements
6.1 Both product castings and casting alloy shall conform to
4.1 Include with inquiries and orders for material under this
the chemical requirements prescribed in Table 1. The supplier
specificatio
...

This document is not anASTM standard and is intended only to provide the user of anASTM 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:F75–07 Designation: F75 – 12
Standard Specification for
Cobalt-28 Chromium-6 Molybdenum Alloy Castings and
1
Casting Alloy for Surgical Implants (UNS R30075)
This standard is issued under the fixed designation F75; the number immediately following the designation indicates the year of original
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
1.1This specification covers the requirements for cobalt-28 chromium-6 molybdenum alloy unfinished investment product
castings for surgical implant applications and casting alloy in the form of shot, bar, or ingots to be used in the manufacture of
surgical implants. This specification does not apply to completed surgical implants made from castings.
1.2Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.TheSIequivalentsinparenthesesareforinformation
only.
1.1 This specification covers the chemical, mechanical, and metallurgical requirements for cobalt-28 chromium-6 molybdenum
alloy unfinished investment product castings for surgical implant applications and casting alloy in the form of shot, bar, or ingots
to be used in the manufacture of surgical implants. This specification does not apply to completed surgical implants made from
castings.
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, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the standard.
2. Referenced Documents
2
2.1 ASTM Standards:
A957 Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial Use
E3 Guide for Preparation of Metallographic Specimens
E88/E8M Test Methods for Tension Testing of Metallic Materials
E18 Test Methods for Rockwell Hardness of Metallic Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E165 Practice for Liquid Penetrant Examination for General Industry
E354 Test Methods for Chemical Analysis of High-Temperature, Electrical, Magnetic, and Other Similar Iron, Nickel, and
Cobalt Alloys
E407 Practice for Microetching Metals and Alloys
E601 TestMethodforMeasuringElectromotiveForce(emf)StabilityofBase-MetalThermoelementMaterialswithTimeinAir
F629 Practice for Radiography of Cast Metallic Surgical Implants
F981 Practice for Assessment of Compatibility of Biomaterials for Surgical Implants with Respect to Effect of Materials on
Muscle and Bone
3
2.2 Aerospace Material Specification:
AMS 2248 Chemical Check Analysis Limits: Corrosion and Heat Resistant Steels and Alloys, Maraging and Other
Highly-Alloyed Steels, and Iron Alloys
AMS 2269 Chemical Check Analysis Limits: Nickel, Nickel Alloys and Cobalt Alloys
4
2.3 ISO Standards:
ISO 5832-4 Implants for Surgery—Metallic Materials—Part 4: Cobalt-Chromium-Molybdenum Casting Alloy
ISO 6892 Metallic Materials—Tensile Testing at Ambient Temperature
ISO 9001 Quality Management Systems—Requirements
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 Jan. 1, 2007. Published January 2007. Originally approved in 1967. Last previous edition approved in 2001 as F75–01. DOI: 10.1520/F0075-07.
Current edition approved May 15, 2012. Published June 2012. Originally approved in 1967. Last previous edition approved in 2007 as F75 – 075. DOI: 10.1520/F0075-12.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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.
3
Available from Society of Automotive Engineers (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001, http://www.sae.org.
4
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.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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F75–12
2.4 American Society for Quality Standard:
ASQ ClSpecification of General Requir
...