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  • BSI
    BS 7612:1993 Specification for non-circular steel wire for mechanical springs
    Edition: 1993
    $316.70
    / user per year

Description of BS 7612:1993 1993

This British Standard specifies the requirements for steel wires of non-circular section supplied in coils or straight lengths, suitable for the manufacture of mechanical springs. It covers flattened, rectangular, square and trapezoidal (also termed keystone or tapered) section wires with square or rounded edges, and special cross section wires, up to a maximum characteristic dimension of 12.0 mm. The standard covers grades of carbon steel in the annealed, prehardened and tempered, cold drawn or cold rolled conditions including music wire, grades of alloy steel in the annealed and prehardened and tempered conditions, and grades of cold drawn or rolled stainless steel.

In addition to the definitive requirements, this standard also requires the items detailed in clause 4 to be documented. For compliance with this standard, both the definitive requirements and the documented items have to be satisfied.

NOTE. The grades of steel wire specified in this standard have been selected from those specified in BS 1429, BS 2056, BS 2803, and BS 5216.



Specifies dimensional tolerances.

Standard NumberBS 7612:1993
TitleSpecification for non-circular steel wire for mechanical springs
StatusConfirmed
Publication Date1993-02-15
DescriptorsChemical composition, Surface defects, Hardness, Trapezoidal shape, Bend testing, Steels, Square shape, Testing conditions, Alloy steels, Wires, Decarburization, Mechanical testing, Unalloyed steels, Dimensions, Stainless steels, Marking, Dimensional tolerances, Etch inspection, Coils, Springs, Tensile testing, Rectangular shape
ICS21.160 Springs
CommitteeISE/106
ISBN0 580 21326 9
PublisherBSI
Pages22

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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