E.R.W. Galvanized Steel Pipes
GI Pipes/ Galvanized pipes are steel pipes covered with a protective coating of zinc that greatly reduces its tendency to corrode and extends its life expectant galvanized steel tubes are covered by a layer of zinc & are used for varied applications. These are available in various size and shapes based on the customer’s requirements. These tubes are natural corrosion resistant and hold functional durability, even in outdoor environments. Apart from preventing water corrosion, it is equally effective in dry, indoor environments. Electric Resistance Welded Pipe uses the high frequency induction heating (HFI) process to manufacture pipes ranging in nominal diameter from 219 mm (8,58 inch) to 610 mm (24 inch), and in wall thickness. In order to ensure completely smooth pipes, welds are scarfed both internally and externally. Immediate confirmations of welds are assured as pipes pass through a multi-probe ultrasonic inspection system located after the welding and scarfing stations. Following ultrasonic assessment, weld joints are induction heated to normalize the metallic structure of the weld. Normalizing also improves toughness of the steel in the region and significantly decreases the weld line corrosion effect. Prior to hydrostatic testing, pipes are sized to required tolerances before being cut to length and the ends bevelled. Weld seams is again ultrasonically tested. Pipes are inspected, weighed and can be varnished and marked prior to final inspection and dispatch, or transferred to the coating and lining plants for corrosion protection treatment. Uses & Applications These are pipes suitable for irrigation and water supply, plumbing, cold storage applications, scaffolding, antenna and telecom towers, water wells etc. GI pipes for various purposes depending upon the requirements of our customers. These pipes and tubes find diverse applications in the following sectors: Air and Water Line - Main water supply, Plumbing / Pumping, Chilled Water Line, Sewerage, Firefighting equipment, Waste water conveying, Cooling tower, Air duct, Chimney, Compressed Air line, Refrigerated line, in cold storage, Gas piping LPG cylinder supporting ring, Chemical transportation. It may be used in residential water supply lines, but not gas lines because natural gas causes the zinc to flake off and clog the system. It's not frequently used for water supply lines because the minerals in the water react with the galvanizing material and form scale, which builds up over time and will eventually clog the pipe. For industrial purpose it could be used in Industrial water lines/plant piping, Waste waterlines, Scaffoldings, Electrical Cable conduits, Gas/Natural gas pipe lines, Oil pipe lines, Cooling towers, LPG & other non-toxic gas pipelines, Cold storages, Vehicular chassis and frames, Idlers & belt conveyors Market Survey Steel pipes are primarily of two types, seamless and welded. Seamless pipes and tubes are used in both oil and non-oil sectors in a wide range of applications as line pipes, casing pipes, production tubings, drill pipes and the like. In the oil sector, API (American Petroleum Institute) standard pipes are preferred for line pipes and casing pipes. Oil sector absorbs nearly 60% of seamless pipes, while some 30% are consumed by bearings and boiler manufacturers. According to the London-based Iron and Steel Statistics Bureau (ISSB), steel tubes industry is poised for a 30% growth in the wake of a growing demand in the infrastructure construction sector, mainly in scaffolding in buildings. The sector has grown dramatically in the recent past at a record 20% growth owing to several infrastructure projects lined up by the government and the private sector. The use of steel rods and bars in stadia, railway stations, multiplexes and gas pipeline has been replaced with steel tubes, fuelling further growth potential for the tube industry. Salem plant (of Steel Authority of India) created awareness of stainless steel also in areas other than utensils. As a result, it found its way increasingly into processing industry, construction, railways and engineering industry. From 85%, the consumption of stainless steel by the utensil manufacturing sector dropped down to nearly 75%. As against the high level of stainless steel used for utensils in India, only 35% is used in the developed countries. India utilizes only about 12% of stainless steel in industrial applications as against 19% in developed countries. Out of total stainless steel produced, more than 70% of production is of SS 200 grade series, while SS 300 grade series constitutes just 15 to 20%. India also has good facilities for stainless steel long products like bars, wire rods and wires which have good prospects in Europe, USA and South East Asian region. Few Indian Major Players are as under: A N S Steel Tubes Ltd. Aravali (India) Ltd. Asrani Tubes Ltd. Bhawani Industries Ltd. Binjrajka Steel Tubes Ltd. Gemini Steel Tubes Ltd. J T L Infra Ltd. Maharashtra Seamless Ltd. Nav Bharat Tubes Ltd. Samana Steels Ltd. Surya Global Steel Tubes Ltd. Thapar Concast Ltd. Tube Investments Of India Ltd. Vallabh Steels Ltd.
