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Standard Specification for Steel Wire, Cold-Drawn, for Coiled-Type Springs
Přeložit název
NORMA vydána dne 1.3.2018
Označení normy: ASTM A407-18
Poznámka: NEPLATNÁ
Datum vydání normy: 1.3.2018
Kód zboží: NS-845242
Počet stran: 4
Přibližná hmotnost: 12 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
coiled-type, cold-drawn, sinuous, springs, square-formed, upholstery, wire, zig-zag,, ICS Number Code 77.140.25 (Spring steels)
1. Scope | ||||||||
1.1 This specification covers round, cold-drawn, steel spring wire having properties and quality intended for the manufacture of the following types of upholstery springs: 1.1.1 Type A—Coiled (Marshall pack), 1.1.2 Type B—Coiled and knotted, 1.1.3 Type C—Coiled and knotted (offset style), 1.1.4 Type D—Coiled and hooked (single and cross helicals), 1.1.5 Type E—Coiled and hooked (short tension—regular tensile strength), 1.1.6 Type F—Coiled and hooked (short tension—high tensile strength), 1.1.7 Type G—Regular lacing, 1.1.8 Type H—Automatic lacing, 1.1.9 Type I—Zig-zag (U-formed), 1.1.10 Type J—Square-formed, and 1.1.11 Type K—Sinuous for furniture spring units. 1.2 These types of upholstery springs are used in the manufacture of automotive seat springs, furniture springs, bed spring units, mattresses, furniture cushions, and automobile seats. This wire is not intended for the manufacture of mechanical springs. 1.3 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. 1.4 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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2. Referenced Documents | ||||||||
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