This process should not allow cracking or flaking of the zinc coating to such an extent that any zinc can be removed by rubbing with bare hands. The zinc coated wire is capable of being wrapped at a rate not exceeding fifteen (15) turns per minute in a close helix of at least two turns around a cylindrical mandrel equal to three times the nominal diameter of the wire under test.The weight of zinc coating is determined by the stripping test in accordance with ASTM Test Method A90 “Test Method for Weight of Coating on Zinc-coated (Galvanized) Iron or Steel Articles”.The weight of the zinc coating in grams per square meter of the uncoated wire surface is not less than 244 for the 6M strand, 259 for the 10M strand and 275 for the 16M strand.In the 7-wire strand, joints made in individual finished wires are acceptable provided there is not more than one joint in any 45.7 m (150 ft.) section of the completed strand and the location of each joint is marked on the strand with paint or some distinguishing marks.Electric-welded butt joints made prior to the start of cold drawing of the guy wire are permitted.This may be accompanied by any means or process such as pre-forming, post-forming, or form setting. When the strand is cut the ends will remain in position or be readily returned by hand and then remain in position. All wires in the strand lie naturally in their true positions in the completed strand.The type of strand in this specification is 7-wire strand and consists of a center wire with a 6-wire layer concentrically twisted around it with a uniform pitch of not more than 16 times the specified nominal diameter of the strand.Stranding is sufficiently close to ensure no appreciable reduction in diameter when stressed to 10% of the specified strength. All wires are stranded with uniform tension. A left lay is defined as a counterclockwise twist away from the observer. Unless otherwise specified, the wire strand has a left lay.The slab zinc from which the coating is derived will be any grade of zinc conforming to ASTM B6 “Specification for Zinc (Slab Zinc)”. It is of such quality and purity that when drawn to the specified size and coated with zinc, the finished strand and the individual wires will be of uniform quality and have the properties and characteristics as prescribed in ASTM A475. The base metal is steel made by the open-heart, basic oxygen, or electric furnace process. The wire strands covered in this specification are commercially known to be 6M, 10M, and 16M all of which are seven-wire (7-wire) strand. The guy wire is of extra high strength grade based on ASTM A475 Standard Specification for Zinc-Coated Steel Wire Strand”. Chapter 7: Frequently Asked Questions (FAQs).Chapter 6: Galvanized Steel Wire for Sale.Chapter 4: Guy Wire Packing and Marking.Chapter 3: Guy Wire Dimensional Specification.Chapter 2: Guy Wire Physical Specification.Length of wire in finished coil: Standard Single wire, after stranding, wrapped on a mandrel 8 times its own diameter Singe wire, before stranding, wrapped on a mandrel 4 times its own diameter Minimum weight of zinc coating after stranding Minimum weight of zinc coating before stranding Minimum percent elongation at rupture after stranding Minimum percent elongation at rupture before stranding Maximum tensile strength of individual wires Minimum ultimate tensile strength of individual wires Nominal overall diameter of stranded staywire If you have any inquiries, please do not hesitate to contact us. Each wire will be completely and smoothly galvanized before stranding.Īs a leading guy wire manufacturer and supplier, Rax Industry can support you with all sizes of stay wire, We also can do OEM or ODM for you. Stay wire is manufactured perfectly and stable to withstand environmental stress during installation and throughout its lifetime.Īll the galvanized steel wire is free from any scale, inequalities, spills, splits, or other defects. All of these stay accessories make up the pole line and telephone line to stable the pole and conductors. Guy wire is assembled with guy clamp, stay thimble, stay rod, stay pole bracket, anchor rod, and turnbuckle stay set. Guy wire is also called stay wire or messenger wire. Guy wire is a tension cable stranded by a few wires which are approximately circular in section and contain no weld, joint, or splice, it is lightweight and strong enough to stabilize and secure poles, towers, and other free-standing structures, especially in utility, antenna, and communications industries.
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