Six cylindrical inner pipe _ _P type steel pipe

 Shandong Liaocheng Polygram Pipe Ltd. was founded in 2004, consists of three subsidiary companies, is a steel pipe, seamless pipe, seamless steel pipe, large diameter thick wall pipe, high pressure alloy pipe, alloy seamless steel pipe, hydraulic pipe, stainless steel control of large production and supply companies, the Shandong Foreign Trade Bureau, enjoy the right to import and export business, is a collection of production, trade and services, new product development in one of the provincial large steel companies. The company currently has: 60, 90 punching machine, cold call six steel pipe production line, hot-rolled production line, mainly produces cold-rolled seamless steel pipe outside diameter 20mm-127mm; two for 325mmASSRL pipe rolling mill, the Department of the largest three roll tube machine, using mandrel pre-wear and limitations of small cycles, three computer-controlled automation systems, have reached the international advanced level, the main production outside diameter of 133mm-1020mm, wall thickness of 16mm-300mm, outer diameter precision ± 0.5%, the wall thickness accuracy of ± 5% hot-rolled seamless steel pipe. Main variety: steel pipe, seamless pipe, seamless steel pipe, large diameter thick wall steel pipe, seamless steel pipe imports, alloy seamless steel, high alloy pipe, hydraulic pipe, steel pipe, oil pipe, precision steel tubes, hydraulic no seam steel pipe, large diameter thick wall steel pipe, 45mn2 seamless steel pipe, 37mn5 alloy seamless steel pipe, hydraulic pipe flat oval steel, 38crmoal steel, 37mn5 pipe, large diameter bar, large diameter seamless steel pipe, carbon steel bar, alloy steel round bar, annual sales of well-known brands of seamless steel pipe, stainless steel bar, round heat, thermomechanical treatment bar, forged round bar, steel pipe, stainless steel pipe, large diameter steel bar. Shandong Liaocheng Polygram Pipe Manufacturing Co. provides you with seamless steel quality inspection methods: 1. Chemical analysis: chemical analysis, instrumental analysis method (C-S-infrared instrument, direct reading spectrometer, zcP etc.). ① infrared C-S instrument: analysis ferroalloy, steel materials, iron and steel in the C, S elements. ② direct reading spectrometer: bulk sample of C, Si, Mn, P, S, Cr, Mo, Ni, Cn, A1, W, V, Ti, B, Nb, As, Sn, Sb, Pb, Bi ③N-0 instrument: gas content analysis of N, O 2. Pipe geometry and appearance inspection: ① pipe wall thickness check: micrometer, ultrasonic thickness gauge, both ends of less than 8:00 and recorded. ② pipe diameter, ovality check: calipers, vernier caliper, ring shaped steel tubing, measuring the maximum point, minimum point. ③ length of pipe inspection: steel tape, manual, automatic length measurement. ④ pipe bending tests: ruler, level foot (1m), feeler, thin measuring curvature per meter, length of curvature. ⑤ pipe end beveling angles and blunt edges checks: Square, card board. 3. Steel surface quality inspection: 100% ① artificial visual inspection: lighting conditions, standards, experience, identity, steel turning. ② NDT inspection: a ultrasonic testing UT:. More sensitive to a variety of materials uniform surface and internal defects in material cracks. Standard: GB / T 5777-1996 levels:. C5 level b eddy current testing ET :( electromagnetic induction) mainly on the dot (hole shape) defect sensitive. Shandong Liaocheng Polygram Pipe Co., Ltd. is a company specializing in special steel, special purpose steel research and development, production and sales of large enterprises. Since inception, we have to quality service, professional quality inspection personnel, equipment to ensure the sale of each product to achieve customer satisfaction, access to many users. Shandong Liaocheng Polygram has focused on forging steel pipe, automotive structural tubes, oil wells, oil and gas pipelines, chemical, marine, boiler, nuclear power and other special pipe. Standards have national standard, Japanese standard, German standard, British standard, American standard and so on. Our products have been widely used in the hydraulic system piping, piping automobile manufacturing, military, engineering machinery, railway locomotive, aerospace, shipbuilding, injection molding machines, die casting machines, machine tools, diesel, petrochemical, power plants, boilers, equipment and other industries. Shandong Liaocheng Polygram steel annual sales of Chengdu Iron and Steel Group, Daye Steel Group, Baotou Steel, Baosteel Group, Anshan Iron and Steel Group, Tianjin Seamless, Xining Te steel, Wuxi Steel Plant, Hengyang Steel Plant and other major steel production all kinds of seamless steel tubes and alloy tube. Has been formed more than 15,000 tons of annual inventory turnover, annual sales volume of over billion. Six cylindrical inner pipe _ _P type steel pipe provided by the Shandong Liaocheng Steel Pipe Manufacturing Co., Polygram. Shandong Liaocheng Polygram Pipe Manufacturing Co. (www.lcbljgg.com) (www.lcbljgg.com) (www.sdlcblj.com) (www.bljggzz.com) strong, credible, Shandong Liaocheng wire, tubes, plates and other manufacturing equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Polygram pipe into the brilliant and you work for a better future!