ASTM F138

ASTM F138

ASTM F138 pdf

ASTM F138 – 08 Standard Specification for Wrought 18Chromium-14Nickel-2.5Molybdenum Stainless Steel Bar and Wire for Surgical Implants (UNS S31673)

This ASTM F138 specification covers the requirements for wrought 18chromium-14nickel-2.5molybdenum stainless steel bar and wire used for the manufacture of surgical implants. Bar and wire shall be furnished, as specified, in the hot-worked, annealed, cold -worked, or extra hard condition. Fine wire shall be furnished, as specified, in the cold-drawn condition.

Types of finish available for bar and wire products are cold-drawn, pickled, ground, and ground and polished. On the other hand, types of finish available for fine wire products are cold-drawn, ground, and ground and polished. The heat analysis shall conform to the requirements as to chemical composition specified and the material shall contain no delta ferrite, chi, or sigma phases when it is examined by metallography. Different tests shall be performed in order to determine the following mechanical properties of the wire and bar: ultimate tensile strength, yield strength, elongation, and Brinell hardness.

This ASTM F138 abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

1. Scope
1.1 This ASTM F138 specification covers the chemical, mechanical, and metallurgical requirements for wrought 18chromium-14nickel-2.5molybdenum stainless steel bar and wire used for the manufacture of surgical implants.

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
ASTM A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels
ASTM A484/A484M Specification for General Requirements for Stainless Steel Bars, Billets, and Forgings
ASTM A555/A555M Specification for General Requirements for Stainless Steel Wire and Wire Rods
ASTM A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
ASTM E8 Test Methods for Tension Testing of Metallic Materials
ASTM E8M Test Methods for Tension Testing of Metallic Materials [Metric]
ASTM E10 Test Method for Brinell Hardness of Metallic Materials
ASTM E18 Test Methods for Rockwell Hardness of Metallic Materials
ASTM E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
ASTM E45 Test Methods for Determining the Inclusion Content of Steel
ASTM E112 Test Methods for Determining Average Grain Size
ASTM E354 Test Methods for Chemical Analysis of High-Temperature, Electrical, Magnetic, and Other Similar Iron, Nickel, and Cobalt Alloys
ASTM Practice for Microetching Metals and Alloys
ASTM F981 Practice for Assessment of Compatibility of Biomaterials for Surgical Implants with Respect to Effect of Materials on Muscle and Bone
ASTM F1350 Specification for Wrought 18Chromium-14Nickel-2.5Molybdenum Stainless Steel Surgical Fixation Wire (UNS S31673)
ISO9001 Quality Management Systems–Requirements
ASQ Standard
ASQC1 Specification of General Requirements for a Quality Program

Index Terms
metals (for surgical implants); stainless steel; surgical applications wire; surgical implants; Chromium surgical implant applications–specifications; Orthopaedic medical devices–specifications; Stainless steel surgical applications–specifications; Surgical implants–specifications; UNS S31673 (Cr-Ni-Mo stainless steel (Surgical implant 316L)); Wire–surgical implants; Wrought chromium surgical implant alloys;

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