ASTM F1537-11

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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:F1537–08 Designation: F1537 – 11
Standard Specification for
Wrought Cobalt-28Chromium-6Molybdenum Alloys for
Surgical Implants (UNS R31537, UNS R31538, and UNS
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R31539)
This standard is issued under the fixed designation F1537; 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 three wrought cobalt-28chromium-
6molybdenum alloys used for surgical implants. The properties specified apply specifically to wrought bar, rod, and wire.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
2. Referenced Documents
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2.1 ASTM Standards:
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
E112 Test Methods for Determining Average Grain Size
E354 Test Methods for Chemical Analysis of High-Temperature, Electrical, Magnetic, and Other Similar Iron, Nickel, and
Cobalt Alloys
F75 Specification for Cobalt-28 Chromium-6 Molybdenum Alloy Castings and Casting Alloy for Surgical Implants (UNS
R30075)
F799 Specification for Cobalt-28Chromium-6Molybdenum Alloy Forgings for Surgical Implants (UNS R31537, R31538,
R31539)
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2.2 Aerospace Material Specifications:
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
AMS 2630 Ultrasonic Inspection Inspection, Ultrasonic Product over 0.5 Inch (12.7 mm) Thick
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2.3 ISO Standards:
ISO 5832–12 Implants for Surgery—Metallic Materials—Part 12: Wrought Cobalt-Chromium-Molybdenum Alloy
ISO 6892 Metallic Materials Tensile Testing at Ambient Temperature
ISO 9001 Quality Management Systems—Requirements
2.4 American Society for Quality Standard:
ASQC1Specification of General Requirements for a Quality Program
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 lot—thetotalnumberofmillproductsproducedfromthesamemeltheatunderthesameconditionsatessentiallythesame
time.
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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 Oct. 1, 2008. Published October 2008. Originally approved in 1994. Last previous edition approved in 2007 as F1537–07. DOI:
10.1520/F1537-08.
Current edition approved Nov. 15, 2011. Published December 2011. Originally approved in 1994. Last previous edition approved in 2008 as F1537 – 08. DOI:
10.1520/F1537-11.
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For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
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Available from Society of Automotive Engineers (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001, http://www.sae.org.
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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.
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F1537 – 11
4. Ordering Information
4.1 Inquiries and orders for material under this specification shall include the following information:
4.1.1 Quantity,
4.1.2 ASTM designation, alloy number, and date of issue,
4.1.3 Mechanical properties (See Section 7),
4.1.4 Form (bar, rod or wire),
4.1.5 Applicable dimensions including size, thickness, width, and length (exact, random, or multiples) or drawing number,
4.1.6 Condition (See Section 5),
4.1.7 Special tests (if any), and
4.1.8 Other requirements.
5. Materials and Manufacture
5.1 Product shall be furnished as specified below:
5.1.1 The annealed condition is typically supplied as a hot rolled and annealed product.
5.1.2 The hot worke
...