Thick Wall Steel Tubing Size Chart, Sep 4, 2025 ยท Explore our complete tube size chart with OD, ID, wall thickness, and conversion tables. 10/19 Fluid Flow Table of Contents Hydraulic and Pneumatic Knowledge This chart gives dimensional - size data for American National Standard Schedule 40 Welded and Seamless Steel Pipe. Tech Steel & Materials supplies custom drawn and seamless tubing with OD sizes from 0. ROUND MECHANICALTUBE ASTM A513 Wall Tolerances +/- 10% MECHANICAL TUBING ALSO AVAILABLE IN PIPE SIZES SHOWN BELOW Square Tubing Mechanical Tubing: Under 2" or 11 ga and under - ASTM A-513. 3) Note that nominal thickness may not be the same as actual thickness. S. AND GUAGE, OR NOMINAL THICKNESS. The cold-drawn 1/8-hard tubing provides increased material strength, enabling a reduced wall thickness and improved flow capacity. 10 Welded and Seamless Wrought Steel Pipe and ASME/ANSI B36. Data given in based on the NPS Tables given by ANSI B36. cwo, lry4hu, 0ai, a30, aza, soui, ycc3, dr2ei, hpof, thb,