News
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HFW steel pipe defects in production
High frequency welded steel pipe if produce control is better, fusion surface of molten metal or oxide will be left. If the cutting of a weld sample polishing, etching, and observed under the optical microscope, the heat-affected zone is shaped like a drum, because the edge of the strip entering ...Read more -
Groove connection
Groove connection is a new method of steel pipe connections, also called clamp connections, which has many advantages. Automatic sprinkler system design specifications proposed pipeline connection system should be used grooved or threaded fittings, flanges; system pipe diameter equal to or greate...Read more -
Exhaust pipe
Exhaust pipe installed in the engine exhaust manifold and muffler, which make the entire exhaust system was flexible coupling, which play a vibration and noise reduction, easy installation and extended exhaust muffler system life role. Exhaust pipes are mainly used for light trucks, mini trucks a...Read more -
ERW Pipe coating
The surface condition of steel pipe is known as the environment that this is through the steel pipe coating with the surrounding soil insulation, pipe surface condition is different from the four weeks the soil. Therefore pipe anti-corrosion layer is an important barrier to prevent soil erosion. ...Read more -
Difference between black steel pipe and galvanized steel pipe
Black steel pipe is the uncoated steel and is also called as black steel. The dark color comes from the iron-oxide formed on its surface during manufacturing. When steel pipe is forged, a black oxide scale forms on its surface to give it the finish which is seen on this type of pipe. Galvanized s...Read more -
carbon oil &gas pipeline
The size of gas pipelines could range from 2 -60 inches in diameter whereas, for oil pipelines it ranges from 4 – 48 inches inner diameter depending on the requirement. Oil pipeline could be made of either steel or plastic however the vastly used one is the steel pipe. Thermal insulated steel pip...Read more