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Investigation on Applications of Light Gauge Stainless Steel Tubes as Gas Pipeline

Author: FanYongHui
Tutor: GaoXueNong
School: South China University of Technology
Course: Chemical Engineering
Keywords: LGSSP-light Gauge Stainless Pipes corrosion resistant Gas Pipeline Appliances
CLC: TU996.7
Type: Master's thesis
Year: 2013
Downloads: 36
Quote: 0
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Abstract


Because of high quality, high strength and good ductility, steel pipe is widely used in gasengineering. The good toughness improves the capacity of absorbing vibration load, and makewelding and threading connection become more easier. According to manufacturing craft,there are two types of steel pipe: seamless steel pipe and welded steel pipe. The welded steelpipe is also called seamed steel pipe. There are3main types of welded steel pipe:low-pressure liquid delivery welded steel pipe, spiral seam welded pipe and straight seamsteel pipe with steel plate.“seamless steel tubes for liquid service（GB/T8163）” is therequired standard in gas engineering. However, welded steel pipes with easily corrosion, highmaintenance cost, and short product life, are limited being used in gas pipeline constructionwork.Stainless steel, with great feature of corrosion resistance, toughness, long product life,safety and hygiene, is widely used in construction work of water supply and drinking waterpipeline. Alone with the increase of gas pipeline product life and successful experience ofwater supply construction work, there are some new rules about usage of stainless steel pipe.In “Code for design of city gas engineering”(GB50028-2006), copper pipe, stainless steel,aluminum-plastic composite pipe and connection hose are suitable for indoor gas pipeline. In“City Gas indoor construction and quality approval standard”(CJJ94-2009), it gives a clearinstruction of indoor gas pipeline’s equipment and installation. Light gauge stainless pipes islisted as an official material for indoor gas pipeline. This is a full recognition for light gaugestainless steel tube in gas engineering work. Seamless steel pipe and galvanized steel pipe arealready widely used at gas network in the country. Attempt of using light gauge stainlesspipes has started.Through a comprehensive analysis the corrosion characteristics and connection methodsof metal tube, stainless steel tube, LGSSP(light gauge stainless steel pipe) and indoor gas pipe,within the experiences of the under building&in-use the LGSSP in gas pipeline work, thesubject of the dissertation is to study a feasibility and scenario of light gauge stainless steelpipe usage in practical gas pipeline construction work.

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CLC: > Industrial Technology > Building Science > Municipal Engineering > City gas supply > Gas pipelines and equipment
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