News
-
Galvanized pipe corrosion principle
Galvanized steel pipe is is state of molten metal zinc and iron substrate reaction of alloy layer, so that the substrate and the coating combination of both. On the use of technology in galvanized, Hot dip galvanized firstly do the pickling, in order to remove the steel surface of iron oxide, aft...Read more -
Drainage pipeline
Drainage pipeline refers to the collection and discharge of sewage, waste water and rainwater pipe drainage system and affiliated facilities. Including dry pipe, branch pipe and pipe leading to treatment plants, Regardless of the pipeline on the street or in any other place, as long as they play ...Read more -
Difference between hot rolled and cold formed steel
Hot rolled steel Hot-rolled is with continuous casting slab or blooming slab as raw material, after reheating furnace heating, high pressure water descaling into roughing mill, roughing material by the cutting head, tail, and then enter the finishing mill, the implementation of a computer-control...Read more -
Black ERW steel pipe
Black ERW steel pipe ERW steel pipe with bevelled ends & plastic caps Hunan Great Steel Pipe Co.,Ltd can provide you with Electric Resistance Welded (ERW) Pipe suitable for your project needs. ERW pipe cold formed from a ribbon of steel pulled through a series of rollers and formed into a tub...Read more -
The Type of Steel Pipe Used for Oil Transportation
The processing, transportation and storage of oil is highly complex with high pressure and corrosion. Crude oil from the underground contains substances such as sulfur and hydrogen sulfide that can oxidize the pipeline. This is a key problem during the oil transportation. Therefore, the material ...Read more -
Thick wall steel pipe
Thick wall steel pipe refers to the pipe diameter and wall thickness ratio of less than 20. The biggest difference between thick wall steel pipe and thin wall steel pipe is the pipe wall thickness, in general, are drawn thin-walled steel technology, and general use of hot-rolled thick-walled stee...Read more