Professional manufacturer of Tianjin small diameter seamless steel pipe, spot sales hotline: 13930425223 0311-67790216 80816223 
 Small diameter seamless steel pipe: different production methods can be divided into hot-rolled pipes, cold-rolled pipes, cold drawn tube, squeeze tubes, hot-rolled seamless pipe is generally produced on automatic pipe mill. Small-diameter seamless steel pipe 
 Solid tube by check and cut into desired length, end to end surface of the perforation in the tube centering and then sent to the furnace heating in punch perforations in perforation while continuing to rotate and advance in the roll and immediate effect to remove surface defects. tube internal gradually formed a cavity known as the capillary, and then sent to the automatic rolling machine to continue rolling and finally by the machine are the entire wall thickness sizing, sizing machine, within specification, the use of the continuous production of hot-rolled seamless pipe mill The steel pipe is a more advanced method of putting up a smaller size and better quality seamless tubes, must adopt the method of cold-rolled cold-rolled cold drawn or both are usually on a two roll mill, steel pipe in the variable section circular and vertical slots ring pass not move the cone head rolling, cold drawn extrusion is about to heat a good tube placed usually in a single chain or double chain drawing machine closed extrusion round barrel perforated rods and extruded rods move together, so that the extrusion extrusion from the die hole of smaller, this method can produce smaller diameter steel pipe. 
 Seamless steel pipe specifications usually outside diameter * thickness (unit: mm), said. Seamless steel pipe production methods can be divided into hot-rolled seamless steel tubes and cold-rolled (allocated) seamless steel pipe two categories. Hot-rolled seamless steel pipe is divided into general steel pipes, low and medium pressure boiler pipe, high-pressure boiler steel pipes, alloy steel pipe, stainless steel, petroleum cracking tubes, geological steel pipe and other pipe and so on. Rolled (allocated) seamless steel Subject to sub-general steel pipe, low and medium pressure boiler pipe, high-pressure boiler steel pipe, steel pipe, stainless steel pipe, petroleum cracking tubes, other steel pipes, including precision steel tubes, carbon steel tubes, alloy thin wall steel pipe, stainless steel tubes and shaped steel tubes. Generally greater than the hot-rolled seamless pipe diameter 32mm, wall thickness 2.5-75mm, rolled seamless steel pipe outside diameter to 6mm wall thickness can be 0.25mm, thin-walled tube diameter to 5mm wall thickness less than 0.25mm , cold than hot-rolled dimensional accuracy. Diameter more than 57mm in the pipeline project, often used in hot-rolled tube, diameter less than 57mm when used cold drawn (rolled) pipe. 
 Year round with a variety of materials of high quality steel pipe, seamless steel pipe, seamless pipe, structural tubes, transmission fluid, low and medium pressure boiler pipe, high pressure pipes, high pressure boiler tubes, fluid tubes, petroleum cracking pipe, fertilizer dedicated pipe, all kinds of alloy tube. Lianxiao clad steel, steel, smelting steel, Anshan, Baoshan, Hengyang Steel, Tin steel and other brand-name manufacturers of seamless pipe. Through years of efforts, the company has become a domestic large-scale stainless steel tube, stainless steel plate, steel pipe, carbon steel pipe sales bases. Met with the major power plants, boiler plants, petroleum, chemical, mechanical expansion of the market, has established an extensive sales network, has a certain reputation. 
 The company abide by contractual commitments to product quality and services, and is willing to work with the new and old customers sincere cooperation, create a better future.