Wire rope zinc coating

Weight of Zinc Coating for Galvanized Rope Wire [12]... 

Galvanized wire guy strand shall conform to ASTM A-475 Zinc-Coated Steel Wire Strand. Aluminized wire guy strand shall conform to ASTM A-474 Aluminum Coated Steel Wire Strand. Galvanized structural strand shall conform to ASTM A-586 Zinc-Coated Steel Structural Strand. Galvanized structural rope shall conform to ASTM A-603 Zinc-Coated Steel Structural Wire Rope. ... 

Steel wire ropes with different amounts of zinc coating (galvanizing) and different types of construction were exposed in Pacific Ocean seawater at depth to determine their corrosion behavior. Some were stressed in tension to determine their susceptibility to stress corrosion or whether stress increased their rates of corrosion. The corrosion behavior of these galvanized steel wire ropes is given in Table 3.24. 

Zinc is one of the most important tools used by engineers to control the corrosion of steel in the atmosphere. Zinc coated steels are used in general building, constructions in automobile bodies, in hardware, containers, tubes, pipe fittings, wires, ropes and hundreds of other applications. Zinc is little susceptible to corrosion even at high humidity. At 99% relative humidity the atmospheric corrosion of zinc amounts to 0.007 g/m /day. But a white hygroscopic corrosion product called wet-storage stain can form on new zinc wet surfaces unless these have been pre-stored for several weeks in low humidity air. 

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