Trepanned tubes are stocked in 72" lengths, but can be produced in longer lengths upon request. Tubes are typically stocked in 65-45-12 grade but when requested, other ductile iron grades such as 80-55-06, 100-70-03, and SSDI can also be trepanned dependent on available diameters. Tubes are sold with clean-up stock on the inside and outside diameters. For Stock Allowances, click here. The concentricity tolerance between the I.D. and O.D. is 0.250".
Meets ASTM A536