Seamless Square Steel Tube

Product Details

In the past ten years, the annual export volume of seamless steel pipe from China has been growing continuously. About 5 million tons of seamless pipe a year are sold from China to the world, among which 2 million tons of seamless steel pipe is exported from Liaocheng, China. Liaocheng is China's largest seamless steel pipe production, sales, processing center. Our company has 5 advanced hot extrusion seamless square steel tube production lines. The daily production of seamless square steel tube can reach 100-150 tons. It can produce seamless square steel tube with outer diameter of 10*10*1.5-500*500*30 and length of 6-12 meters. In order to ensure the quality of seamless square steel tube, all the raw materials of our company are made of high-quality materials such as Baosteel, Ye Steel and Tianjin Group. And our company has a perfect product quality inspection process, to ensure that every seamless square steel tube is in line with the standard. Our company complete mold, according to the needs of customers, to provide you with the best product solutions，seamless square steel tube one can be customized, three days delivery.

 

How is seamless square steel tube made?

There are two kinds of seamless square steel tube, cold-drawn seamless square steel tube and extruded seamless square steel tube.

Cold-drawn seamless square steel tube is cut into the required length of round steel cutting, the end face of the round steel centering, the round steel heated to 1250 degrees in the heating furnace, in the round steel nearly melted state perforation (in the perforation at the same time continuous rotation and forward, under the action of the mill rolland and the top head, the inside of the tube blank gradually formed a cavity, this is the tubular billet).

After pickling, phosphating, saponification to remove impurities, rust prevention and lubrication, the tubular billet is cold-drawn into a square steel tube in the cold-drawing machine. After the straightening machine straightening, you can cut the head into the warehouse.

Extruded seamless square steel tube is made of round seamless steel tube, annealed to remove the stress, by the square steel tube extruder according to different die extruded square steel tube.

 

What's the difference between seamless square steel tube and a welded square pipe?

The production process of seamless square steel tube is different from that of welded square pipe. Seamless square steel tube is cold-drawn or extruded from seamless pipe, while welded square pipe is welded with strip steel. Because their raw materials are different, so the price of seamless square steel tube and welded square pipe is also different, usually the price of seamless square steel tube is higher than that of welded square pipe. Seamless square steel tube is a thermal forming process, welded square pipe is high temperature welding, high temperature will affect the mechanical properties, so the performance of seamless square steel tube is more stable than that of welded square pipe. The wall thickness of s seamless square steel tube is relatively thick, and the wall thickness of welded square pipe is generally relatively thin.

 

What is the main use of seamless square steel tube?

Seamless square steel tube can be mainly used in curtain wall engineering, agricultural machinery, forklift, piling machine, curtain wall and so on

 

What is seamless square steel tube?

 

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