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      Super Austenitic Stainless Steel

         
             
      Common grades
                 

      304/L/H/LN, 316/L/H/LN/Ti/LMod, 310S/H, 317/L, 321/H,

      347H/HFG, N08904(904L), N08367, S31254(254SMo) and so on.

             
      Common standards

      ASTM A312(ASME SA312)Seamless and welded austenitic stainless steel pipe

      ASTM A213(ASME SA213) Boiler, superheater, and the heat exchanger with seamless ferritic and austenitic steel pipe

      GB/T 14976 Fluid conveying stainless steel seamless steel tube

      GB 13296   Boiler, stainless steel seamless steel tubes for heat exchanger

      GOST 9941   cold (warm) processing Corrosion resistant seamless steel tube

      EN 10216-5   Seamless steel pipe used in pressure - technical delivery conditions

      JIS G3459   Stainless steel tube, stainless steel industrial piping

           

      Austenitic stainless steel pipe has stable austenite structure at normal temperature,  the steel contains about 18% of Cr, more than 8% Ni, about 0.1% C, it possesses very high corrosion resistance, good cold workability and good toughness, plastic, welding and non-magnetic. It has been widely used in chemical, refining, boiler, food and other industries heat exchanger, non-magnetic condenser, evaporator, liquid transportation industry, etc.

      Compared to common austenitic stainless steel ,super austenitic stainless steel has a higher cleanliness uniformity, mechanical properties, more fine organization, better surface quality, more excellent resistance to harsh medium local corrosion resistance and better process  manufacturing performance, etc.,  It can be used in harsher working condition, stronger corrosive industrial environment, which can not be satisfied by ordinary  austenitic  stainless steel : petroleum chemical industry of butyl acetate acetic acid,  terephthalic acid ,polyvinyl chloride (PVC)and other media environment; The crude oil refining of crude oil desalting ,reduced pressure distillation environment ,the ultra supercritical boiler , superheater , rehearter, final reherater,etc

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