ASTM B974/B974M-12
Historical Standard: ASTM B974/B974M-12 Standard Specification for Free-Cutting Bismuth Brass Rod, Bar and Wire
SUPERSEDED (see Active link, below)
ASTM B974 / B974M
1. Scope
1.1 This specification establishes the requirements for free-cutting bismuth brass rod, bar and wire of UNS Alloy No. C49250, C49260 and C49340 suitable for high-speed screw machine work, or for general applications.
1.2 Typically, product made to this specification is furnished as straight lengths, or coils when requested.
1.3 Units The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
B249/B249M Specification for General Requirements for Wrought Copper and Copper-Alloy Rod, Bar, Shapes and Forgings
B250/B250M Specification for General Requirements for Wrought Copper Alloy Wire
B846 Terminology for Copper and Copper Alloys
E8 Test Methods for Tension Testing of Metallic Materials
E8M Test Methods for Tension Testing of Metallic Materials [Metric]
E53 Test Method for Determination of Copper in Unalloyed Copper by Gravimetry
E54 Test Methods for Chemical Analysis of Special Brasses and Bronzes
E62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods)
E92 Test Method for Vickers Hardness of Metallic Materials
E478 Test Methods for Chemical Analysis of Copper Alloys
Other Standards
ISO5959-1984 Copper and copper alloys - determination of bismuth content - Diethyldithiocarbamate spectrometric method Available from International Organization of Standards, http://www.ISO/ISO/store.htm.Keywords
bismuth brass rod and bar; bismuth containing rod and bar; free-cutting brass rod and bar; free-cutting copper rod and bar; lead free brass rod and bar; screw machine stock; UNS Alloy No. C49250; UNS Alloy No. C49260; UNS Alloy No. C49340;
ICS Code
ICS Number Code 77.120.99 (Other non-ferrous metals and their alloys)
DOI: 10.1520/B0974_B0974M-12
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