Carbon Steel IBR Pipes

Carbon Steel IBR Pipes & Tubes.The steel shall be killed steel, with the primary meltingprocess being open-hearth, basic-oxygen, or electric-furnace,possibly combined with separate degassing or refining. Ifsecondary melting, using electroslag remelting or vacuum-arcremelting is subsequently employed, the heat shall be defined as all of the ingots remelted from a single primary heat.Approved under the India Boiler Regulation Act along with the form 3A/3D.ASTM A 106 Gr. B , IBRLT Seamless Pipe , ASTM A 333 Gr.6Carbon Steel Seamless Boiler Tube IBR BS 3059Part II / CDS / 360, BS / 3059/ Part II / HFS / 360ASTM A 210 Din 17175 St 35.8Heat Exchanger Tube ASTM A 179API Line Pipes API 5L Gr. B / PSL Gr x 52ERW Boiler Tubes IBR BS 3059 / Part I – 320Size Range : 6 mm NB To 24' NBThickness : SCH 40, SCH 80, SCH 160, SCH XXSlength : 6 mtr & Double random Length4.2 Steel cast in ingots or strand cast is permissible. Whensteels of different grades are sequentially strand cast, identification of the resultant transition material is required.  The producer shall remove the transition material by any established procedure that positively separates the grades.4.3 For pipe NPS 11⁄2 and under, it shall be permissible tofurnish hot finished or cold drawn. 4.4 Unless otherwise specified, pipe NPS 2 and over shall be furnished hot finished. When agreed upon between the manufacturerand the purchaser, it is permissible to furnish colddrawnpipe.Hot-finished pipe need not be heat treated. Cold-drawnpipe shall be heat treated after the final cold draw pass at atemperature of 1200°F (650°C) or higher. Weight—The weight of any length of pipe shall notvary more than 10 % over and 3.5 % under that specified.Unless otherwise agreed upon between the manufacturer and the purchaser, pipe in NPS 4 and smaller may be weighed in convenient lots; pipe larger than NPS 4 shall be weighed separately.Diameter—The tolerances for diameter shall be inaccordance with the following: Except for pipe ordered as special outside diametertolerance pipe or as inside diameter tolerance pipe, variationsin outside diameter shall not exceed those prescribed in Table 5.For pipe over 10 in. (254 mm) OD ordered as specialoutside diameter tolerance pipe, the outside diameter shall not vary more than 1 % over or 1 % under the specified outside diameter.For pipe over 10 in. (254 mm) ID ordered as insidediameter tolerance pipe, the inside diameter shall not varymore than 1 % over or 1 % under the specified inside diameter.Thickness—The minimum wall thickness at any pointshall not be more than 12.5 % under the nominal wall thickness specified.