Galvanized Spiral Steel Pipe Introduction:


Galvanized spiral pipe is a state of molten metal zinc and iron substrate reaction and produce alloy layer, so that the substrate and the coating, the combination of both so than ordinary spiral steel pipe has a certain advantage, because the process is relatively complex, added zinc element, make plastic spiral steel pipe more good, and the corrosion resistance of zinc, especially chemical corrosion resistance is also very good.

Specification:

 
Standard Specification
ASTM A53 Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless
API 5L Specification for Line Pipe(Two levels PSL 1 and PSL 2 of seamless and welded steel pipes for use in pipeline transportation systems in the petroleum and natural gas industries.)
A252 Standard Specification for Welded and Seamless Steel Pipe Piles
A500 Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes
BS EN10219-1 Cold formed welded structural hollow sections of non-alloy and fine grain steels - part1: Technical delivert conditions
BS EN10219-2 Cold formed welded structural hollow sections of non-alloy and fine grain steels - part2: tolerances dimmsions and sectional properties
 

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