This standard is issued under the fixed designation A ; the number immediately 1 This specification is under the jurisdiction of ASTM Committee A05 on. ASTM A Specification for Zinc-Coated Steel Wire Strand. ASTM A Specification for Zinc-Coated (Galvanized) Steel Overhead Ground Wire Strand. ASTM A Standard Specification for Zinc-Coated Steel Wire Strand.
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zinc-coated steel wire strand （ASTM A475）
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Joints in the wires composing the strand shall be either the brazed-lap type or electric-butt-welded type shall be coated with zinc after completion so that the joints have protection from corrosion equivalent to that of the zinc-coated wire itself.
The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not astk standard. The finished strand shall meet the requirements according to the specified approximate weight per unit length of strand against minimum breaking strength, elongation, and ductility of steel.
zinc-coated steel wire strand （ASTM A）
A75 1 and Classes A, B, and C. The five grades covered are as follows: It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application.
The base metal shall be steel made by any commercially accepted steel making process and of such quality and purity that, when drawn to the size of wire specified and coated with zinc, the finished strand and the individual wires shall be of uniform quality and have the properties and characteristics as prescribed in this specification. Historical Version s – view previous versions of standard.
Minimum weights of zinc coatings are described in Section This abstract is a brief a75 of the referenced standard. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date. X475 to Active This link will always route to the current Active version of the standard.
Strands shall have a left lay and all wires shall be stranded with uniform tension and be sufficiently close. The zinc-coated wire a4475 be capable of being wrapped in a close helix without cracking or delaminating the zinc coating.
This specification covers five grades of zinc-coated, steel wire strand, composed of a number of round, steel wires, with four weights of zinc coatings, suitable for use as guys, messengers, span wires, and for similar purposes.