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ASTM B 21/B21M : 2020

Current
Current

The latest, up-to-date edition.

Standard Specification for Naval Brass Rod, Bar, and Shapes
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-04-2020

1.1This 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.

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

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

1.2Units—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.

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

1.4This 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.

1.5This 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.

Committee
B 05
DocumentType
Standard
Pages
8
PublisherName
American Society for Testing and Materials
Status
Current
Supersedes

ASTM E 8/E8M : 2024 Standard Test Methods for Tension Testing of Metallic Materials
ASTM E 8/E8M : 2016 : REV A : EDT 1 Standard Test Methods for Tension Testing of Metallic Materials
ASTM E 8/E8M : 2021 Standard Test Methods for Tension Testing of Metallic Materials
ASTM E 18 : 2022 Standard Test Methods for Rockwell Hardness of Metallic Materials
ASTM B 154 : 2016 Standard Test Method for Mercurous Nitrate Test for Copper Alloys
ASTM E 18 : 2020 Standard Test Methods for Rockwell Hardness of Metallic Materials
ASTM E 8/E8M : 2022 Standard Test Methods for Tension Testing of Metallic Materials
ASTM B 124/B124M : 2010 Standard Specification for Copper and Copper Alloy Forging Rod, Bar, and Shapes
ASTM B 249/B249M : 2023 Standard Specification for General Requirements for Wrought Copper and Copper-Alloy Rod, Bar, Shapes and Forgings
ASTM B 249/B249M : 2022 Standard Specification for General Requirements for Wrought Copper and Copper-Alloy Rod, Bar, Shapes and Forgings
ASTM B 249/B249M : 2020 Standard Specification for General Requirements for Wrought Copper and Copper-Alloy Rod, Bar, Shapes and Forgings
ASTM E 18 : 2019 Standard Test Methods for Rockwell Hardness of Metallic Materials
ASTM E 478 : 2008 : R2017 Standard Test Methods for Chemical Analysis of Copper Alloys
ASTM B 154 : 2016 : R2022 Standard Test Method for Mercurous Nitrate Test for Copper Alloys

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