Product News
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Introduction to Black Steel Pipe
Black steel pipe is a non-galvanized steel pipe. Black steel pipe is used in applications that do not require the pipe to be galvanized. This non galvanized black steel pipe acquired its name because of its dark coloured iron oxide coating on its surface. Because of the strength of black steel pi...Read more -
High-frequency welding technology of hot-rolled seamless steel pipe
Small diameter steel pipe is mainly used in oil, natural gas pipeline. The small diameter steel pipe has one side welding and welding by both sides, welded pipe shall ensure that the water pressure test, the tensile strength and cold bending properties of the weld in accordance with regulations. ...Read more -
About carbon steel pipe tubing
Tubing is used to transport fluids and gases in a variety of pneumatic, hydraulic, and process applications. Tubes are usually cylindrical in shape, but may have round, rectangular, or square cross-sections. Tubing is specified in terms of outside diameter (OD) and, depending upon the material of...Read more -
Advantage of galvanized spiral pipe welding process
Galvanized pipe welding processes can be divided into spiral welded and straight seam welded, and galvanized spiral welding process is relatively wider number of applications, but also more complex. Galvanized spiral pipe welding method is first out of the forward end portion of the electrode abo...Read more -
304 stainless steel seamless pipe annealing temperature on alloying elements
Production 1000MPaCP standard cold rolled steel annealing cycle is reheated to the annealing temperature of the critical zone, then cooled and maintained at about 400 isothermal deg.] C, above the martensite start temperature (Ms). 1. The volume percentage of ferrite and carbon content area that ...Read more -
3PE coating pipes
Pipe has three layer PE antisepsis structure: the first layer with epoxy powder (FBE> 100um), the second layer with adhesive (AD), 170 ~ 250um, the third layer with polyethylene (PE) 2.5 ~ 3.7mm. integration of them and solid steel pipe make form a good coating. Diameter range 60mm-1420mm, wal...Read more
