Schedule Tube is the denomination given to the result rounded to ten calculated by the formula: SCH=P / S where P is the pressure of work of the tube and S is the tension (pressure) corresponding to 60 percent of the limit of the tube material at 20 Graus C. Therefore, for the same external diameter of a conduction pipe, the greater or greater the thickness of the wall in relation to its diameter. The Schedule defines, therefore, the wall thickness of the conduction tube. The tubes of the ASTM and NBR 5590 standards follow the dimensions according to the standard defined in the ANSI B 36.10 standard.
The Schedule Pipes have limits and tolerances of chemical composition and mechanical properties specified by standards NBR 5590, API, ASTM A-106, A-53, A-333 and A-335.
GNEE Pipes supplies Schedule Pipes with or without seams, Black or Galvanized Conduit Pipes, in bars or in some cases cut to the requested compressions, also Schedule 10, SCH 20, SCH 30, STD, SCH 40, SCH 60, XS, SCH 80, SCH 100, SCH 120, SCH 140 and SCH 160 and XXS.
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