ASTM F688-05

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Designation: F688 – 05
Standard Specification for
Wrought Cobalt-35Nickel-20Chromium-10Molybdenum Alloy
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Plate, Sheet, and Foil for Surgical Implants (UNS R30035)
ThisstandardisissuedunderthefixeddesignationF688;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
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* Materials on Muscle and Bone
2.2 American Society for Quality Standard:
1.1 This specification covers the chemical, mechanical, and
ASQ C1 Specification of General Requirements for a Qual-
metallurgical requirements for wrought cobalt-35nickel-
3
ity Program
20chromium-10molybdenum alloy (UNS R30035) in the form
of plate, sheet, and foil to be used in the manufacture of
3. Terminology
surgical implants.
3.1 Descriptions of Terms Specific to This Standard:
1.2 The values stated in inch-pound units are to be regarded
3.1.1 capability—usedtoindicatetheabilityofcoldworked
as the standard. The SI equivalents in parentheses are for
material to attain specific mechanical properties after thermal
information only.
aging treatment.
2. Referenced Documents 3.1.2 foil—material under 0.005 in. (0.127 mm) in thick-
2
ness.
2.1 ASTM Standards:
3.1.3 lot—the total number of mill products produced from
E8 Test Methods for Tension Testing of Metallic Materials
the same melt heat under the same conditions at essentially the
E10 Test Method for Brinell Hardness of Metallic Materials
same time.
E18 Test Methods for Rockwell Hardness of Metallic Ma-
3.1.4 plate—as used in this specification, material 0.1875
terials
in. (4.76 mm) and over in thickness.
E29 Practice for Using Significant Digits in Test Data to
3.1.5 sheet—as used in this specification, material 0.005 in.
Determine Conformance with Specifications
(0.127 mm) to under 0.1875 in. (4.76 mm) in thickness.
E92 Test Method for Vickers Hardness of Metallic Materi-
als
4. Ordering Information
E112 Test Methods for Determining Average Grain Size
4.1 Inquiries and orders for material under this specification
E140 Hardness Conversion Tables for Metals Relationship
shall include the following information:
Among Brinell Hardness, Vickers Hardness, Rockwell
4.1.1 Quantity (weight or number of pieces),
Hardness, Superficial Hardness, Knoop Hardness, and
4.1.2 ASTM Designation,
Scleroscope Hardness
4.1.3 Form (plate, sheet, foil),
E345 Test Methods of Tension Testing of Metallic Foil
4.1.4 Condition (see 5.1),
E384 Test Method for Microindentation Hardness of Mate-
4.1.5 Mechanical properties (if applicable for special con-
rials
ditions),
F562 Specification for Wrought 35Cobalt-35Nickel-
4.1.6 Finish (see 5.2 and 5.3),
20Chromium-10Molybdenum Alloy for Surgical Implant
4.1.7 Edge (see 5.4 and 5.5),
Applications (UNS R30035)
4.1.8 Applicable dimensions, including size, thickness,
F981 Practice forAssessment of Compatibility of Biomate-
width, and length (exact, random, or multiples) or print
rials for Surgical Implants with Respect to Effect of
number, and
4.1.9 Special requirements.
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This specification is under the jurisdiction of ASTM Committee F04 on
5. Manufacture
Medical and Surgical Materials and Devices and is the direct responsibility of
5.1 Condition—Plate, sheet, and foil shall be furnished as
Subcommittee F04.12 on Metallurgical Materials.
Current edition approved Aug. 1, 2005. Published August 2005. Originally specified in the annealed, cold-worked, or cold-worked and
approved in 1980. Last previous editioin approved in 2000 as F688 – 00. DOI:
capability-aged condition.
10.1520/F0688-05.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on Available from American Society for Quality (ASQ), 600 N. Plankinton Ave.,
the ASTM website. 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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F688 – 05
TABLE 1 Sheet Mechanical Properties
5.2 Finishes for Plate:
5.2.1 Types of finish available for plate are ground finish Ultimate Tensile Yield Strength Elongation, Rockwell
Condition Strength, min, psi (0.2 % offset), min, % in 2 Hardness,
produced by surface grinding or continuous belt sanding and
A A
(MPa) min, psi (MPa) in.or50mm min
dull finish produced by chemical descaling. B
Annealed 115 000 (792) 45 000 (310) 45 87 HRB
5.3 Finishes for Sheet and Foil: 48 % cold worked 197 000 (1357) 195 000 (1343) 3 43 HRC
A
5.3.1 Types of finish available for she
...