Seamless square tube is widely used in steel structure, machinery manufacturing, shipbuilding, curtain wall bracket, solar power equipment bracket and so on. As a seamless square tube supplier and manufacturer, our company can produce seamless square tube with complete specifications. The specification of square tube is 10 * 10-600 * 600mm, the range of rectangular tube is 20 * 10-500 * 600mm, and the range of wall thickness is 1.5-30.0mm.
Classification of seamless square tube
1. According to the production process: hot rolled seamless square tube, cold drawn seamless square tube, extruded seamless square tube, welded square tube.
2. According to the material: ordinary carbon steel square tube, low alloy square tube.
3. According to the production standards, it can be divided into national standard square tube, Japanese standard square tube, British standard square tube, American standard square tube, European standard square tube and non-standard square tube.
4. According to the shape: square tube, rectangular square tube, flower square tube, special square tube, etc
5. According to surface treatment: hot galvanized square pipe, electric galvanized square pipe, oiled square pipe, pickling square pipe.
6. According to the classification of uses: decorative square tube, mechanical square tube, automobile square tube, special square tube, etc.
7. According to the wall thickness: ultra thick square tube, thick square tube, thin square tube.
The process of seamless square tube
1.The straight seamless square tube must be made on the special imported assembly line to ensure the manufacturing accuracy and airtightness of the air pipe.
2.The blanking of seamless square tube duct fittings shall be completed automatically by computer software on the imported special machine, and the automatic plasma cutting process shall be completed by the imported special plasma cutting machine for sheet metal.
3.The bite connection of rectangular air duct shall adopt the imported automatic bite device for the bite process.
4.The connection between the seamless square tube duct body and the plug-in flange shall adopt the rivetless connection process, and the imported equipment shall be used for the rivetless connection process.
5.The connecting flange of seamless square tube shall adopt the connecting process of connecting plate flange and plug-in flange. When the large side length of air duct is less than or equal to 2000mm, the common plate flange connection shall be adopted. When the large side length of air duct is more than 2000mm and less than or equal to 2500mm, the plug-in flange connection shall be adopted. The rectangular air duct shall be mechanically pressed with stiffeners, and the spacing of stiffeners shall be about 300mm.
Use of seamless square tube
As a seamless square tube supplier and manufacturer, our products are mainly used in construction, machinery manufacturing, steel construction and other projects, shipbuilding, solar power generation bracket, steel structure engineering, electric power engineering, power plant, agricultural and chemical machinery, glass curtain wall, automobile chassis, machinery yard, Boiler construction, high-speed rail, housing construction, pressure vessel, oil storage tank, bridge, power station equipment, hoisting and transportation machinery and other high load welding structural parts, etc.
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