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The seamless steel pipe and the welded steel pipe have a weld bead on the inner wall of the welded pipe, and are seamless. The seamless pipe pressure is higher, the welded pipe is generally about 1...

What is galvanized steel pipe ? Galvanized pipes, also known as galvanized steel pipes, are pided into hot-dip galvanizing and electro-galvanizing. The hot-dip galvanizing galvanized layer is thick...

1. Welded steel pipes for low-pressure fluid transportation are used to transport water, gas, steam, compressed air, etc.; structural welded steel pipes can be used to manufacture scaffolds, trusses, ...

The large-diameter seamless steel pipe adopts unique technology. Its finished appearance looks high precision, and the quality of the inner and outer walls is smooth and the image is good. Generally, ...

At present, large-diameter thick-walled steel pipes, large-diameter thick-walled seamless steel pipes, small-diameter thick-walled seamless steel pipes, special thick-walled steel pipes, large-diamete...

Seamless steel pipe for structural use in general structure and mechanical structure, a large number of structural steel pipe structures used in construction, machinery, transportation, aviation, oil ...

1. The cross section is different: the cross section of the square tube is square; the cross section of the rectangular tube is rectangular. 2. different uses: The use of square tubes: construction, ...

1. The site or warehouse where the steel is kept should be selected at the midpoint of clean and clean, poor drainage, and away from the factories and mines where harmless gas or dust occurs. Weeds an...

1. High frequency welding process of straight seam steel pipe: according to the way in which the high frequency current generates heat in the workpiece can be pided into high frequency welding by cont...

The overall heat treatment process and overall heat treatment of the seamless square tube are characterized in that there is no temperature difference in the pipe wall during the treatment process, no...