- Millimeter tubing specs. D. PER AWWA C906 the working pressure rating equals the pressure class, with an allowance included in the WPR for pressure surge. 4 MPa (74 900 psi). Stainless Steel Tubing Instrumentation-grade seamless stainless-steel tubing is available in fractional, metric, and imperial sizes. Access our downloadable pipe schedule chart for accurate dimensions. 1 standards and thermocouple-cleaned per ASTM A632-S3 How to describe steel pipe dimensions and size correctly? The article tells you the meaning of Pipe Schedule (like sch40, 80), NPS, WGT (LB/FT). STEEL TUBING DIMENSIONS & WEIGHT PER FOOT. AND GUAGE, OR NOMINAL THICKNESS. Each series is manufactured to international standards and features a full line of individual components, so that you can assemble the configuration that best meets the needs of your application. Our tubing dimensions are indicated as outer diameter by wall thickness. 1vt ypo84 ryzwfqd idwvb opms ubyaqe 5xz3 xi8k 7q atch