ASTM B427-21

Standard Specification for Gear Bronze Alloy Castings

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STANDARD published on 1.4.2021

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The information about the standard:

Designation standards: ASTM B427-21
Publication date standards: 1.4.2021
SKU: NS-1021926
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Copper products

Annotation of standard text ASTM B427-21 :

This specification establishes requirements for gear bronze alloy castings with Copper Alloy No. C90800, C91700, C90700, C91600, and C92900. The castings may be furnished as one of three types: static chill, centrifugal chill, or sand cast. The alloys shall be subject to tensile strength, yield strength, elongation, and Brinell hardness tests. The Brinell readings shall be taken on the grip end of the tension test bar as described in the specification.

Keywords:
bronze castings, copper-base castings, gear bronze, gear castings,, ICS Number Code 77.150.30 (Copper products)

Additional information

1. Scope

1.1?This specification1.2?The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.3?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.

1.4?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

E8/E8M-24	Standard Test Methods for Tension Testing of Metallic Materials
B950-23	Standard Guide for Editorial Procedures and Form of Product Specifications for Copper and Copper Alloys
B846-19a	Standard Terminology for Copper and Copper Alloys (Includes all amendments and changes 8/8/2019).
B824-17	Standard Specification for General Requirements for Copper Alloy Castings
B208-14(2021)	Standard Practice for Preparing Tension Test Specimens for Copper Alloy Sand, Permanent Mold, Centrifugal, and Continuous Castings
E10-23	Standard Test Method for Brinell Hardness of Metallic Materials
E527-23	Standard Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)

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