ASTM B21/B21M-20 PDF

Scope: 1.1 This specification establishes the requirements for naval brass rod, bar, and shapes produced from Copper Alloy UNS Nos. C46200, C46400, C46750, C47940, C48200, C48500, C48640, or C48645.

1.1.1 For piston-finish rod or shafting refer to the Other Requirements Section.

1.1.2 For hot forging material, refer to Specification B124/B124M.

1.2 Units—The 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 are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other and values from the two systems shall not be combined.

1.3 Warning—Mercury is a definite health hazard in use and disposal (see Performance Requirements).

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 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.

ASTM B21/B21M-20 Referenced Document

ASTM B124/B124M Standard Specification for Copper and Copper Alloy Forging Rod, Bar, and Shapes
ASTM B154 Standard Test Method for Mercurous Nitrate Test for Copper and Copper Alloys
ASTM B249/B249M Standard Specification for General Requirements for Wrought Copper and Copper-Alloy Rod, Bar, Shapes and Forgings
ASTM B601 Standard Classification for Temper Designations for Copper and Copper Alloys-Wrought and Cast
ASTM B858 Standard Test Method for Ammonia Vapor Test for Determination Susceptibility to Stress Corrosion Cracking in Copper Alloys
ASTM E18 Standard Test Methods for Rockwell Hardness of Metallic Materials
ASTM E478 Standard Test Methods for Chemical Analysis of Copper Alloys
ASTM E62 Standard Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods)
ASTM E8/E8M Standard Test Methods for Tension Testing of Metallic Materials

2020 ASTM B21/B21M-20 Standard Specification for Naval Brass Rod, Bar, and Shapes
2018 ASTM B21/B21M-18(2019) Standard Specification for Naval Brass Rod, Bar, and Shapes
2018 ASTM B21/B21M-18 Standard Specification for Naval Brass Rod, Bar, and Shapes
2014 ASTM B21/B21M-14 Standard Specification for Naval Brass Rod, Bar, and Shapes
2012 ASTM B21/B21M-12 Standard Specification for Naval Brass Rod, Bar, and Shapes
2006 ASTM B21/B21M-06 Standard Specification for Naval Brass Rod, Bar, and Shapes
2001 ASTM B21/B21M-01e1 Standard Specification for Naval Brass Rod, Bar, and Shapes
2001 ASTM B21/B21M-01 Standard Specification for Naval Brass Rod, Bar, and Shapes
2017 ASTM B21-96 Standard Specification for Naval Brass Rod, Bar, and Shapes
1983 ASTM B21-83b Standard Specification for Naval Brass Rod, Bar, and Shapes