ASTM F688-00
(Specification)Standard Specification for Wrought Cobalt-35 Nickel-20 Chromium-10 Molybdenum Alloy Plate, Sheet, and Foil for Surgical Implants(UNS R30035)
Standard Specification for Wrought Cobalt-35 Nickel-20 Chromium-10 Molybdenum Alloy Plate, Sheet, and Foil for Surgical Implants(UNS R30035)
SCOPE
1.1 This specification covers the requirements for a wrought cobalt-35 nickel-20 chromium-10 molybdenum alloy plate, sheet, and foil used for the manufacture of surgical implants.
1.2 The values stated in inch-pound units are to be regarded as the standard. The SI units given in parentheses are for information only.
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Designation: F 688 – 00
Standard Specification for
Wrought Cobalt-35 Nickel-20 Chromium-10 Molybdenum
Alloy Plate, Sheet, and Foil for Surgical Implants (UNS
1
R30035)
This standard is issued under the fixed designation F 688; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope * AMS 2269 Chemical Check Analysis Limits—Wrought
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Nickel Alloys and Cobalt Alloys
1.1 Thisspecificationcoverstherequirementsforawrought
2.3 American Society for Quality Standard:
cobalt-35 nickel-20 chromium-10 molybdenum alloy plate,
C 1 Specification of General Requirements for a Quality
sheet, and foil used for the manufacture of surgical implants.
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Program
1.2 The values stated in inch-pound units are to be regarded
as the standard. The SI units given in parentheses are for
3. Terminology
information only.
3.1 Descriptions of Terms Specific to This Standard:
2. Referenced Documents 3.1.1 foil—material under 0.005 in. (0.127 mm) in thick-
ness.
2.1 ASTM Standards:
3.1.2 plate—as used in this specification, material 0.1875
A 480 Specification for General Requirements for Flat-
in. (4.76 mm) and over in thickness.
Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and
2
3.1.3 sheet—as used in this specification, material 0.005 in.
Strip
3
(0.127 mm) to under 0.1875 in. (4.76 mm) in thickness.
E 8 Methods for Tension Testing of Metallic Materials
E 10 Test Method for Brinell Hardness of Metallic Materi-
4. Ordering Information
3
als
4.1 Inquiries and orders for material under this specification
E 18 Test Methods for Rockwell Hardness and Rockwell
3 shall include the following information:
Superficial Hardness of Metallic Materials
4.1.1 Quantity (weight or number of pieces),
E 92 Test Method for Vickers Hardness of Metallic Mate-
3 4.1.2 ASTM Designation,
rials
3 4.1.3 Form (plate, sheet, foil),
E 112 Test Methods for Determining Average Grain Size
4.1.4 Condition (see 5.1),
E 140 HardnessConversionTablesforMetals(Relationship
4.1.5 Mechanical properties (if applicable for special con-
Between Brinell Hardness, Vickers Hardness, Rockwell
ditions),
Hardness, Rockwell Superficial Hardness, and Knoop
3 4.1.6 Finish (see 5.2-5.4),
Hardness)
3 4.1.7 Applicable dimensions, including size, thickness,
E 345 Methods for Tension Testing of Metallic Foil
3 width, and length (exact, random, or multiples) or print
E 384 Test Method for Microhardness of Materials
number, and
F 562 Specification for Wrought Cobalt-Nickel-Chromium-
4 4.1.8 Special requirements.
Molybdenum Alloy for Surgical Implant Applications
F 981 Practice for Assessment of Compatibility of Bioma-
5. Manufacture
terials for Surgical Implants with Respect to Effect of
4 5.1 Condition—Plate, sheet, and foil shall be furnished to
Materials on Muscle and Bone
the implant manufacturer as specified in the annealed or
2.2 Aerospace Materials Specification:
cold-worked condition.
5.2 Finishes Available for Plate:
5.2.1 Ground finish produced by surface grinding or con-
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This specification is under the jurisdiction of ASTM Committee F04 on
tinuous belt sanding.
Medical and Surgical Materials and Devicesand is the direct responsibility of
Subcommittee F04.12 on Metallurgical Materials.
Current edition approved Nov. 10, 2000. Published February 2001. Originally
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published as F 688 – 80. Last previous editioin F 688 – 95. Available from Society of Automotive Engineers, 400 Commonwealth Drive,
2
Annual Book of ASTM Standards, Vol 01.03. Warrendale, PA 15096.
3 6
Annual Book of ASTM Standards, Vol 03.01. Available from the American Society for Quality, 161 West Wisconsin Ave.,
4
Annual Book of ASTM Standards, Vol 13.01. 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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F 688
TABLE 1 Sheet Mechanical Properties
5.2.2 Dull finish produced by chemical descaling.
5.3 Finishes Available for Sheet: Ultimate Tensile Yield Strength Elongation, Rockwell
Condition Strength, min, psi (0.2 % offset), min, % in 2 Hardness,
5.3.1 Groundfinishproducedbycontinuousbeltsandingfor
A A
(MPa) min, psi (MPa) in.or50mm min
sizes 0.060 in. (1.524 mm) to under 0.1875 in. (4.76 mm). B
Annealed 115 000 (792) 45 000 (310) 45 87 HRB
5.3.2 Bright rolled finish for sizes under 0.060 in. (1.524 48 % cold worked 197 000 (1357) 195 000 (1343) 3 43 HRC
A
mm).
Tensile and yield requirements apply to tests taken longitudinally to the rolling
direction.
5.3.3 Dull finish on annealed or aged material.
B
0.0197 in. (
...
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