NEWS AND EVENTS

Black steel pipe and galvanized steel pipe are the two most common kind of pipe applied to transport liquid and gas. They have several respects similar to each other and many people confuse one to the other one. What is the main difference between black steel pipe and galvanized steel pipe?

What is the process of galvanizing steel pipes?Metal PreparationDipping Phase into Molten ZincCooling, Finishing, and DryingQuality Control Galvanized iron pipes are widely known for a wide range of practical applications — water transportation, in agriculture, telecommunications, plumbing, and more

1.ERW black round pipe (ASTM A53,GB..)2.Weld black square/rectangular pipe(ASTM A500,GB,...)3.Hot dip galvanized round pipe (BS 1387,ASTM A53,GB ,...)4.Hot dip galvanized square/rectangular pipe(ASTM A500,GB...)5.Pre-galvanized square/rectangular/round pipe,cold rolled black annealed or bright finis

We are Tianjin ZJY Steel pipe company.Tianjin zjy Steel Pipe Group was founded in 2003. Our company has the most advanced welded pipe production line and supporting energy-saving facilities.All products have passed ISO9001 international quality management system certification. Since 2009, we have wo

Galvanized steel pipe is a steel pipe that has been coated with a zinc layer. The zinc layer coating protects the steel pipe from corrosion and rust. The zinc layer provides a barrier against corrosion so that the pipe can be used in the outdoor environmental conditions with satisfied service life.

All items of our products and related tests as follow : 1.ERW black round pipe (ASTM A53,GB..)2.Weld black square/rectangular pipe(ASTM A500,GB,...)3.Hot dip galvanized round pipe (BS 1387,ASTM A53,GB ,...)4.Hot dip galvanized square/rectangular pipe(ASTM A500,GB...)5.Pre-galvanized square/rectangul