Pipe Application Air Natural Gas Non-Potable Water Propane Steam Finish/Coating Galvanized Fitting Compatibility Class 150 Gravity Flow No Inside Diameter 2 1/2 in Material Stainless Steel Material Grade 304 Maximum Operating Pressure 1582 psi @ 650 Degrees F Maximum Operating Temperature 600 Degrees F Maximum Steam Pressure 838 psi @ 650 Degrees F Metal Pipe Construction Welded Minimum Operating Temperature -20 Degrees F Nominal Pipe Size 2 1/2 in Outside Diameter 2 7/8 in