Tiêu chuẩn quốc tế
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Số hiệu
Standard Number
ASTM B103/B103M-19
Năm ban hành 2019
Publication date
Tình trạng
A - Còn hiệu lực
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Tên tiếng Anh
Title in English Standard Specification for Phosphor Bronze Plate, Sheet, Strip, and Rolled Bar
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Chỉ số phân loại Quốc tế (ICS)
By field |
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Số trang
Page 7
Giá:
Price Liên hệ / Contact us
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Phạm vi áp dụng
Scope of standard 1.1 This specification establishes the requirements for copper-tin alloy (phosphor bronze), copper-tin-lead alloy (leaded phosphor bronze), and copper-tin-lead-zinc alloy (bearing bronze), plate, sheet, strip, and rolled bar. The phosphor bronzes commonly are used for deep drawing into bellows and stamping and forming into spring devices and into terminals and connectors for electrical apparatus because they combine high strength with high elongation. The leaded phosphor bronzes are used where strength, corrosion resistance, and machinability are required. The bearing bronze is used in bushings, bearings, and load-bearing thrust washers. The following alloys are covered: Copper Alloy UNS No.2 Nominal Composition, % Previously Used Designation Copper Tin Zinc Lead C51000 95 5 . . . . . . A1 C51100 96 4 . . . . . . A C51180 96 4 . . . . . . . . . C51900 94 6 . . . . . . C52100A 92 8 . . . . . . C C52180 92 8 . . . . . . . . . C52400 90 10 . . . . . . D C53400 94 5 . . . 1 B1 C54400 88 4 3 4 B2 Note 1: All of the above alloys contain small amounts of phosphorus, used as a deoxidant in melting, and to enhance the mechanical properties. 1.2 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 The following safety hazard caveat pertains only to the test method(s) described in this specification. 1.3.1 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.
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