HYDROGRAND Steel Pipe Co.,ltd is a large steel complexes in China integrated with steel making and rolling process. A multiple producing system with steel products, such as steel plates, steel pipes, steel section and round bar has been built. The Capability of steel products in 10 million tons each year. The company, s leading steel pipes industry includes medium & small- diameter hot-rolled seamless tubes, specially alloy rolled tubes, cold-rolled and cold-drawn seamless tubes, expanding large diameter
seamless tube, medium-diameter ERW welded steel pipes, large-diameter longitudinal submerged-arc welded steel pipes, large spiral steel pipes and all kinds of pipe fittings,such as bend, elbow, reducer,tee, flanges,coupling, caps„etc for the connection of the pipeline. Now the Seamless tube has 3 hot rolling lines and 1 cold drawn line:①400mm Plug Mill,O180mm retaining rack MPM,<1> 159mm PQF. It also has ①340mm and O 245mm OCTG threading line and two heat treatment line.So it can produce all kinds of hot rolling seamless with O.D. from
10-610 mm with W.T.0.5-15mm welded steel pipes, including Hollow Section, such as square & rectangular steel tube, galvanized steel pipes, per-galvanized tube, EMT Tube.etc. And meanwhile the large longitudinal submerged-arc welded steel pipes lines can produce the O.D.① 457mm① 1420 mm with W.T.7-60mm with one seam and two seams for above 1500mm. The largest spiral steel pipes production lines can cover 7 lines from ①219mm to 3500mm : 1) O.D. from ①219-530mm and W.T. from 3.0-15mm; 2) O.D. from 325-1320mm and W.T. from 3.0-16mm; 3) O.D. from 530-2200mm and W.T. from 5.0-20mm; 4) O.D. from 530-3500mm and W.T. from 5.0-25mm; These steel pipes have been widely applied in energy industry, petrochemical industry, machining, maritime facilities, gas and oil projects,hydroelectric(power) station,water transmitting project and infrastructure construction.,etc. HYDROGRAND Steel Pipe CO.,ltd 's steel pipe industry integrates R&D, product development, machining and inspection, distribution. It implements whole process quality control including piercing, hot-rolled coils,heavy plates,blooming, pipe rolling and welding. The company is steel pipe industry has comprehensive advantages super iron and steel complex. The mills is one of the most modernized steel pipes production bases in China nowadays. Relying on competitive advantages such as advanced equipment, completed technical knowledge, strict management and high credit,especially strong resource integration capability. Hydrogrand Steel Pipe Co.,ltd can supply high quality product and services to satisfy customers demands.We have been implementing an effective Quality Control and Assurance System.We have a long-term plan to keep, control and improve quality continually. 
