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ASTM B371-2019 pdf free download

ASTM B371-2019 pdf free download.Standard Specification for Copper-Zinc-Silicon Alloy Rod
1. Scope
1.1 This specification establishes the requirements for copper-zinc-silicon alloy rod produced in Copper Alloy UNS Nos. C69240, C69300, C69400, C69410, C69430, C69700, C69710, and C69850. 1.1.1 If the purchaser does not specify the alloy to be supplied, product is permitted to be furnished in any of the alloys named in 1.1. 1.2 Units—The values stated in either SI units or inch- pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equiva- lents; 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 The following safety hazard caveat pertains only to the test methods described in this specification. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility ofthe user ofthis standard to establish appropriate safety, health, and environ- mental practices and determine the applicability ofregulatory requirements prior to use. 1.4 Warning—Mercury has been designated by many regu- latory agencies as a hazardous substance that can cause serious medical issues. Mercury, or its vapor, has been demonstrated to be hazardous to health and corrosive to materials. Use caution when handling mercury and mercury- containing products. See the applicable product Safety Data Sheet (SDS) for additional information. The potential exists that selling mercury or mercury-containing products, or both, is prohibited by local or national law. Users must determine legality ofsales in their location. 1.5 This international standard was developed in accor- dance with internationally recognized principles on standard- ization established in the Decision on Principles for the Development of International Standards, Guides and Recom- mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
4. Ordering Information
4.1 Include the following information when placing orders for product under this specification, as applicable: 4.1.1 ASTM designation and year of issue; 4.1.2 Copper alloy UNS No. designation; 4.1.3 Form—Cross section such as round, hexagon, and so forth; 4.1.4 Temper—(Section 7); 4.1.5 Dimensions—Diameter or distance between parallel surfaces, nominal specific or stock length; 4.1.6 Quantity—Total weight, footage, or number of pieces; and 4.1.7 If product is purchased for agencies of the U.S. government (see Supplementary Requirements section of Specification B249/B249M). 4.2 The following options are available and should be specified at the time of placing the order, when required: 4.2.1 Residual Stress Test (Performance Requirements section, Section 9), Ammonia Vapor Test or Mercurous Nitrate Test, For the Ammonia Vapor Test, pH value other than 10. 4.2.2 Certification (Specification B249/B249M), and 4.2.3 Mill test report (Specification B249/B249M).
5. Material and Manufacture
5.1 Material—The material of manufacture shall be cast billets, logs, or rods of Copper Alloy UNS Nos. C69240, C69300, C69400, C69410, C69430, C69700, C69710, or C69850 of such purity and soundness as to be suitable for processing into the product prescribed herein. 5.2 Manufacture—The product shall be manufactured by hot extrusion and finished by such cold working, annealing, straightening, and cutting to length as may be necessary to meet the properties specified.
6. Chemical Composition
6.1 The material shall conform to the chemical composi- tional requirements specified in Table 1 for the Copper Alloy UNS No. designation specified in the ordering information. 6.1.1 These compositional limits do not preclude the pres- ence of other elements. By agreement between the manufac- turer and the purchaser, limits may be established and analysis required for unnamed elements. 6.2 For alloys in which zinc is listed as “remainder,” either copper or zinc may be taken as the difference between the sum of results of all other elements determined and 100 %. 6.3 When all elements in Table 1 are determined, the sum of results shall be 99.5 % min.

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