Standard Specification for Wrought Stainless Steels for Surgical Instruments

ABSTRACT
This specification covers the chemical requirements for wrought stainless steels used for the manufacture of surgical instruments. Classes of stainless steels covered here are Class 3 (austenitic stainless steel), Class 4 (martensitic stainless steel), Class 5 (precipitation hardening stainless steel), and Class 6 (ferritic stainless steel). The data contained in this specification, such as typical hardness values, common heat treating cycles, and examples of selected stainless steels that have been used for surgical instruments, are provided for reference only. Mechanical property, heat treatment, hardness, and all other requirements except for chemical composition, are governed by the appropriate material standards as specified or as agreed upon between purchaser and supplier.
SCOPE
1.1 This specification covers the chemistry requirements for wrought stainless steels used for the manufacture of surgical instruments. The data contained in Tables 1-4 of this specification, including typical hardness values, common heat treating cycles, and examples of selected stainless steels that have been used for surgical instruments, is provided for reference only. Mechanical property requirements, heat treating requirements, hardness requirements and all other requirements except chemistry are governed by the appropriate material standards as referenced below or as agreed upon between purchaser and supplier.
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.

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Publication Date
31-Jan-2009
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ASTM F899-09e1 - Standard Specification for Wrought Stainless Steels for Surgical Instruments
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
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Designation: F899 – 09
Standard Specification for
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Wrought Stainless Steels for Surgical Instruments
ThisstandardisissuedunderthefixeddesignationF899;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.
This standard has been approved for use by agencies of the Department of Defense.
1
´ NOTE—“Other Elements” in Table 8 were corrected editorially in April 2010.
TABLE 1 Typical Maximum Hardness for Selected Class 4
1. Scope*
A
Martensitic Stainless Steels in The Annealed Condition
1.1 This specification covers the chemistry requirements for
Typical Maximum
Type
wrought stainless steels used for the manufacture of surgical
B
Brinell Hardness
instruments. The data contained in Tables 1-4 of this specifi-
410 210
cation, including typical hardness values, common heat treat-
410X 220
ing cycles, and examples of selected stainless steels that have 416 262
416 Mod 262
been used for surgical instruments, is provided for reference
420A 220
only. Mechanical property requirements, heat treating require-
420B 235
420 Mod 255
ments, hardness requirements and all other requirements ex-
420X 262
cept chemistry are governed by the appropriate material
420C 262
standards as referenced below or as agreed upon between
420F 262
420F Mod 262
purchaser and supplier.
431 285
1.2 The values stated in inch-pound units are to be regarded
440A 285
as standard. The values given in parentheses are mathematical
440B 285
440C 285
conversions to SI units that are provided for information only
440F 285
and are not considered standard.
UNS S42026 260
UNS S42010 235
2. Referenced Documents
A
Excludes billets and bars for forging.
2
B
2.1 ASTM Standards: Or equivalent Rockwell hardness.
A276 Specification for Stainless Steel Bars and Shapes
A314 Specification for Stainless Steel Billets and Bars for
A582/A582M Specification for Free-Machining Stainless
Forging
Steel Bars
A480/A480M Specification for General Requirements for
A751 Test Methods, Practices, andTerminology for Chemi-
Flat-Rolled Stainless and Heat-Resisting Steel Plate,
cal Analysis of Steel Products
Sheet, and Strip
3
2.2 ISO Standards:
A484/A484M Specification for General Requirements for
ISO 7153/1 Instruments For Surgery—Metallic Materials—
Stainless Steel Bars, Billets, and Forgings
Part 1: Stainless Steel
A555/A555M Specification for General Requirements for
ISO 9001 Quality Management Systems—Requirements
Stainless Steel Wire and Wire Rods
4
2.3 American Society for Quality (ASQ) Standard:
A564/A564M Specification for Hot-Rolled and Cold-
ASQ C1 Specification of General Requirements for a Qual-
Finished Age-Hardening Stainless Steel Bars and Shapes
ity Program
3. Classification and Type
1
3.1 Classes—Stainless steel material requirements for sur-
This specification is under the jurisdiction of ASTM Committee F04 on
Medical and Surgical Materials and Devices and is the direct responsibility of
gicalinstrumentsshallconformtooneofthefollowingclasses,
Subcommittee F04.12 on Metallurgical Materials.
as specified:
Current edition approved Feb. 1, 2009. Published February 2009. Originally
approved in 1984. Last previous edition approved in 2007 as F899 – 07. DOI:
10.1520/F0899-09E01.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM 4th Floor, New York, NY 10036, http://www.ansi.org.
4
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, http://www.asq.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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F899 – 09
TABLE 2 Typical Heat Treating Cycles and Resultant Hardness Values for Selected Class 4 Martensitic Stainless Steels
Typical Hardness at Typical Hardness at
A Indicated Tempering A Indicated Tempering
Typical Hardening Typical Hardening
B B
Type Type
Temperature Temperature
Heat Treatment Heat Treatment
°F °C (HRC) °F °C (HRC)
410 1850°F (1010°C) + 500 260 43 420C 1900°F (1038°C) + 300 149 58
Oil quench 700 371 43 Warm oil quench 400 204 55/56
C
or air cool 900 482 42 500 260 53/54
C
1000 538 30 600 315 53/54
1100 593 24 700 371 54/55
D
410X 1875°F (1024°C) + 500 260 46 800 427 55
Oil quench 700 371 46/47 420F 1900°F (1038°C) + 300 149 52
C
or air cool 900 482 48 Warm oil quench 400 2
...

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