ASTM B121/B121M-23

ASTM B121/B121M-23 - 1.4.2023

1. Scope

1.1?This specification establishes the requirements for leaded brass plate, sheet, strip, and rolled bar for general application produced from Copper Alloy UNS Nos. C33500, C34000, C34200, C35000, C35300, and C35600.

1.2?UnitsThe values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, SI units are shown in brackets. 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.

1.3?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

2. Referenced Documents

B846-19a	Standard Terminology for Copper and Copper Alloys (Includes all amendments and changes 8/8/2019).
E8/E8M-24	Standard Test Methods for Tension Testing of Metallic Materials
E112-13(2021)	Standard Test Methods for Determining Average Grain Size
E255-23	Standard Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition
E527-23	Standard Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
B601-18a	Standard Classification for Temper Designations for Copper and Copper Alloys´Wrought and Cast (Includes all amendments and changes 10/24/2018).
B248M-22	Standard Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar (Metric)
B248-22	Standard Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar
E478-08(2017)	Standard Test Methods for Chemical Analysis of Copper Alloys