ASTM A 474 : 1998被替代
Standard Specification for Aluminum-Coated Steel Wire Strand
出版：American Society for Testing and Materials
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基本信息
標準編號： ASTM A 474 : 1998
標準類別：Standard
出版單位：American Society for Testing and Materials
標準頁數：0
標準簡介
1.1 This specification covers five grades of aluminum-coated, steel wire strand, composed of a number of round, steel wires, with aluminum coatings, for use as guys, messengers, span wires, and for similar purposes. 1.2 The five grades covered are as follows: 1.2.1 Utilities, 1.2.2 Common, 1.2.3 Siemens-Martin, 1.2.4 High-Strength, and 1.2.5 Extra High-Strength. 1.3 Minimum breaking strengths of strand for each grade are specified in Table 1. 1.4 The values stated in inch-pound units are to be regarded as the standard.
