ASTM F75-01
(Specification)Standard Specification for Cobalt-28 Chromium-6 Molybdenum Alloy Castings and Casting Alloy for Surgical Implants (UNS R30075)
Standard Specification for Cobalt-28 Chromium-6 Molybdenum Alloy Castings and Casting Alloy for Surgical Implants (UNS R30075)
SCOPE
1.1 This specification provides 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.
1.2 The values stated in inch-pound units are to be regarded as the standard. The SI equivalents of inch-pound units may be approximate.
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Designation: F 75 – 01
Standard Specification for
Cobalt-28 Chromium-6 Molybdenum Alloy Castings and
1
Casting Alloy for Surgical Implants (UNS R30075)
ThisstandardisissuedunderthefixeddesignationF 75;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (e) indicates an editorial change since the last revision or reapproval.
8
1. Scope* 2.3 ISO Standards:
ISO 5832-4 Implants for Surgery—Metallic Materials—
1.1 This specification provides the requirements for
Part 4: Cobalt-Chromium-Molybdenum Casting Alloy
cobalt-28 chromium-6 molybdenum alloy unfinished invest-
ISO 6892 Metallic Materials Tensile Testing at Ambient
ment product castings for surgical implant applications and
Temperature
casting alloy in the form of shot, bar, or ingots to be used in the
9
2.4 American Society for Quality Standard:
manufacture of surgical implants. This specification does not
ASQ Cl Specification of General Requirements for a Qual-
apply to completed surgical implants made from castings.
ity Program
1.2 The values stated in inch-pound units are to be regarded
as the standard.The SI equivalents of inch-pound units may be
3. Ordering Information
approximate.
3.1 Inquiries and orders for material under this specification
2. Referenced Documents shall include the following information:
3.1.1 Quantity (number of product castings or weight of
2.1 ASTM Standards:
2
casting alloy),
E 3 Practice for Preparation of Metallographic Specimens
2
3.1.2 ASTM designation and date of issue,
E 8 TestMethodsforTensionTestingofMetallicMaterials
3.1.3 Form (product casting, shot, bar, ingot),
E 18 Test Methods for Rockwell Hardness and Rockwell
2
3.1.4 Applicable dimensions or drawing number,
Superficial Hardness of Metallic Materials
3
3.1.5 Condition (as-cast, hot isostatically pressed (HIP),
E 165 Test Method for Liquid Penetrant Examination
2
solution annealed, and so forth),
E 407 Practice for Microetching Metals and Alloys
3.1.6 Special tests, if any, and
E 601 Practice for Fluorescent Penetrant Inspection of Me-
4
3.1.7 Other requirements.
tallic Surgical Implants
E 629 Practice for Radiography of Cast Metallic Surgical
4. Materials and Manufacturing Requirements for
5
Implants
Product Castings
F 981 Practice for Assessment of Compatibility of Bioma-
4.1 Final thermal processing for castings, if any, shall be
terials for Surgical Implants with Respect to Effect of
6 specified by mutual agreement between the supplier and
Materials on Muscle and Bone
7 purchaser.
2.2 Aerospace Material Specification:
4.2 Castings shall be free of visible investment shell mate-
AMS2248 ChemicalCheckAnalysisLimits:Corrosionand
rial and scale when examined without magnification.
Heat Resistant Steels and Alloys, Maraging and Other
4.3 Welding may be used to repair castings as agreed upon
Highly-Alloyed Steels, and Iron Alloys
between supplier and purchaser.
AMS 2269 Chemical Check Analysis Limits: Nickel,
4.3.1 Weld repair shall be performed in accordance with
Nickel Alloys and Cobalt Alloys
written procedures by individuals certified to perform those
procedures.
1
4.3.2 Weld filler metal conforming to the chemistry ofTable
This specification is under the jurisdiction of ASTM Committee F04 on
Medical and Surgical Materials and Devices and is the direct responsibility of
1 shall be used when it is needed.
Subcommittee F04.12 on Metallurgical Materials.
4.3.3 Weld repair, if any, shall be performed before final
Current edition approved Dec. 10, 2001. Published February 2002. Originally
thermal processing.
published as F 75 – 67. Last previous edition F 75 – 98.
2
Annual Book of ASTM Standards, Vol 03.01.
3
Annual Book of ASTM Standards, Vol 03.03.
4
Annual Book of ASTM Standards, Vol 14.03.
5 8
Discontinued; See 1996 Annual Book of ASTM Standards, Vol 11.05. Available from American National Standards Institute, 25 W. 43rd St., 4th
6
Annual Book of ASTM Standards, Vol 13.01. Floor, New York, NY 10036.
7 9
Available from Society of Automotive Engineers, 400 Commonwealth Dr., Available from American Society for Quality, 600 N. Plankinton Ave.,
Warrendale, PA 15096-0001. Milwaukee, WI 53203.
*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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F75–01
A
TABLE 1 Chemical Composition TABLE 2 Product Analysis Tolerances
B,C
Composition, % (Mass/Mass) Tolerance,
Element
Element
% (Mass/Mass)
min max
Chromium 0.30
Chromium 27.00 30.00
Molybdenum 0.15
Molybdenum 5.00 7.00
Nickel 0.05
Nickel . 0.50
Iron 0.03
Iron . 0.75
Carbon 0.02
Carbon . 0.35
Silicon 0.05
Silicon . 1.00
M
...
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