Clean-up stock must be considered when ordering. Rectangles are made to the actual dimensions. The concentricity tolerance between the I.D. Tubes are sold with clean-up stock on the inside and outside diameters. Tubes are typically stocked in grade G2 gray iron or 65-45-12 Ductile, but most stocked sizes and any grade of O.D. Trepanned tubes are stocked in 72' lengths, but can be produced in longer lengths upon request. tube will receive a tube which is 3.110' O.D. Wall thickness minimums are based on actual O.D.
Stock Allowances - Cast Iron Tubes (Gray, Ductile, or Ni-Resist) *** - Turned OD Tolerance is +.080'/-0' and Finish Size is 0.250' below turned OD
A 3.000” bar is guaranteed to finish at 3.000”. Stock allowance is a function of the bar diameter. Round bars are made with sufficient stock on the outside diameter to guarantee clean-up at the nominal dimensions.
