Standard Specification for Metallic-Coated Steel Wire Strand
STANDARD published on 1.4.2022
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Designation standards: ASTM A475-22
Publication date standards: 1.4.2022
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM
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. The five grades covered are as follows: utilities, common, Siemens-Martin, high-strength, and extra high-strength. 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. Strands shall have a left lay and all wires shall be stranded with uniform tension and be sufficiently close. 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. The zinc-coated wire shall be capable of being wrapped in a close helix without cracking or delaminating the zinc coating. 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.
Keywords:
steel wire strand, wire, zinc/aluminum alloy coated steel wire strand, zinc-coated steel wire strand,, ICS Number Code 29.060.10 (Wires)