Active Standard ASTM B121 / B121M | Developed by Subcommittee: B05.01
Book of Standards Volume: 02.01
Historical (view previous versions of standard)
This specification establishes the requirements leaded brass plates, sheets, strips, and rolled bars made from UNS C33500, C34000, C34200, C34000, C35000, C35300, or C35600 copper-zinc-lead alloys. Each product should be manufactured by hot or cold working, and annealed if required, to produce a uniform wrought structure that meets the specified temper properties. This specification also contains information on the standard tempers of rolled and annealed materials as well as the required tensile strength, Rockwell hardness, and grain sizes. The Rockwell hardness test can be used to test for general conformity to the specification requirements for temper, tensile strength and grain size.
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1.1 This specification establishes the requirements for copper-zinc-lead alloys (leaded brass) plate, sheet, strip, and rolled bar. The following alloys are covered:
1.2 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
B248 Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar
B248M Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar (Metric)
B601 Classification for Temper Designations for Copper and Copper Alloys--Wrought and Cast
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]
E76 Test Methods for Chemical Analysis of Nickel-Copper Alloys
E478 Test Methods for Chemical Analysis of Copper Alloys
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
ICS Number Code 77.150.30 (Copper products)
UNSPSC Code 30102210(Brass plate); 30261600(Brass sheets)