Tiêu chuẩn quốc tế
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Số hiệu
Standard Number
ASTM A417-93(2004)
Năm ban hành 2004
Publication date
Tình trạng
W - Hết hiệu lực
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Tên tiếng Anh
Title in English Standard Specification for Steel Wire, Cold-Drawn, for Zig-Zag, Square-Formed, and Sinuous-Type Upholstery Spring Units (Withdrawn 2008)
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Số trang
Page 3
Giá:
Price Liên hệ / Contact us
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Phạm vi áp dụng
Scope of standard 1.1 This specification covers round, uncoated, cold-drawn spring wire in coils having properties and quality intended for the manufacture of the following upholstery springs: 1.1.1 Type A - Zig-zag (U-formed), 1.1.2 Type B - Square-formed, and 1.1.3 Type C - Sinuous for furniture spring units. 1.2 These types of upholstery springs are used in the manufacture of automotive seat springs and furniture springs. The wire is not intended for the manufacture of mechanical springs.
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