SMST-Tubes_Urea_Plants_Brochure_2009.pdf - Advanced Tube...

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Advanced Tube Technology for Urea Plants
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Table of contents SMST-Tubes history and product range 3 Processes and materials used for urea plants 4 Bimetallic tubes 5 Corrosion and testing methods 6 Welding working practices 8 Proven manufacturing and quality processes 9 SMST-Tubes supply 10
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QUALITY IN ROUND TERMS. 3 SMST-Tubes history and product range Our group integrates the tradition of three seamless stainless steel worlds (Mannesmann, Dalmine and Vallourec). Resulting in “DMV Stainless” from this international merger in 1994, DMV became a part of Salzgitter group in 2003 and adjusted its name to Salzgitter Mannesmann Stainless Tubes in 2008. With an international network of plants and offices, we are a global top player in our markets and a consistently reliable business partner, ensuring quick and customer focused answers to changing market requirements. Our customers profit from one of the most comprehensive product ranges in our business: · from small instrumentation tubing to large pipe sizes with outside diameters from 6 to 250 mm (from 0.24 up to 9.84 inches) and with wall thicknesses from 0.5 up to 50 mm (from 0.02 up to 1.97 inches) · in materials from standard austenitic stainless, duplex and super-duplex steels to highly sophisticated nickel-based alloys – this variety offers highest corrosion resistance, heat resistance and/or high-temperature, high-strength materials. Seamless stainless steel and nickel-based alloy tubes and pipes are our everyday passion and our history at Salzgitter Mannesmann Stainless Tubes. As early as 1885 Reinhard and Max Mannesmann invented a rolling process for the production of seamless steel tubes in Remscheid, Germany. In the 1890‘s they developed it futher until it reached marketability: the production method they invented was the pilger process, which still is widely in use today. We combine high quality products for critical environments with efficient and reliable services: our customers thus enjoy a supportive personal account management. Ongoing cycles of investment ensure that we work according to the latest technical standards. This gives us the trustworthi- ness to equip the so called “critical spots” of customers ́ plants, products and processes with the special qualities of our tubes and pipes. Typically, these “critical” service conditions are defined e.g. by · high temperatures · high pressure · aggressive media (acids or basic)
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Processes and materials used for urea plants Materials used for urea plants Urea’s share in the world-wide production of nitrogen-based fertilizers is around 40 %. The best known production processes include those developed by Snamprogetti, Stamicarbon, Toyo Engineering and Urea Casale. In the process, liquid ammonia and gaseous carbon dioxide are converted in a reactor under pressure (150 - 200 bar) at high temperature (180 - 190°C) to ammonium carbamate, urea and water.
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  • Winter '16
  • DR Zaheer
  • Stainless steel, urea plants, Salzgitter Mannesmann Stainless Tubes

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