In year 2016, Huayang build one new JCOE production line for LSAW pipe, size range from 20" to 56" (508mm-1422.4mm), wall thickness: 9.53mm-50mm. The JCOE manufacturing technology is a welded pipe forming process developed in the 1990s, during the molding process, it is the first steel plate edge milling preflex by longitudinal edges (or planing), and then type J → C → O the order of the type of molding.

API 5L PSL1/PSL 2 Line Pipe Technical Date Sheet

ERW steel pipe are divided into induction welding and contact welding , using hot-rolled wide steel coil as raw material.

The Ministry of Construction has been officially below, out of backward technology galvanized pipe cold, .cold galvanized pipe in the future are not allowed to make water, gas pipe Hot-dip galvanized steel pipe: the base of the steel pipe and the molten bath complex physical and chemical reactions, the formation of corrosion-resistant structure of a close zinc-iron alloy layer.

Low pressure fluid delivery with welded steel pipe (GB / T3092-1993) also known as general welded pipe, commonly known as the black tube. Is used to transport water, gas, air, oil and heating steam and other general low pressure fluid and other uses of welded steel pipe.

Hot-dip galvanizing (galvanizing) is an effective way of metal corrosion, mainly applied to the industries of metal structure facilities.

What is the differences between HFW and ERW Steel Pipe? Now, Let’s go to make a clear of this question from the ERW and HFW welding processes.

ASTM A53 could be a steel alloy, used as steel or for non aggressive plumbing. The alloy specifications are set by ASTM International, in specification ASTM A53/A53M.