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ASTM A407-07(2013)

ASTM A407-07(2013)

Standard Specification for Steel Wire, Cold-Drawn, for Coiled-Type Springs

2018-04-20 /Historical
Superseeded by:

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.

coiled-type; cold-drawn; sinuous; springs; square-formed; upholstery; wire; zig-zag
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