En10210 E355 E335 E235 E275 Round Seamless Steel Pipe Smls Pipe

Seamless steel pipe is mainly made from the process of stretch reducing, the tension reduction process is a continuous rolling process of hollow metal without mandril. The process of tension reduction is a continuous rolling process of hollow tubing without mandril. Under the condition of ensuring the welding quality of tubing, the welding tubing tension reduction process is to heat the tubing to more than 950 degrees Centigrade, and then the stretch reducing track machine is rolled into various finished tubing of external diameter and thick wall. In addition, the size accuracy of the steel pipe(especially the roundness and thickness of the tube) is better than that of the same type of seamless pipe by multiple stages of stretch reducing and automatic control.

Quality test

1.Black varnish painted or oil painted, 2PE.3PE on the surface. 2.Plain,square cut or beveling end by caps. hexagon or triangle buddle with steel strips. 4.Other as the customer's requires.

We have established quality management system according to ISO9001:2008 and carry out the total quality management. Now, We sell 160,000 tons steel pipes per year, including the steel pipes for the high, medium and low pressure boilers, shipping, transporting liquid products, the petroleum cracking process, the fertilizer facilities, the structure,the hollow sucker rod, oil well casing and drill pipe, galvanized steel pipe and some stainless steel. Provide high quality products to in different industries customers. In recent years, the company products are not only sold well in domestic market but also exported to different countries and areas in the world. Our products are very popular in the overseas market. A number of overseas well-known enterprises have established a long-term business relationship with us. Warmly welcome customers home and abroad to visit

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