Pipe, Application Air, Natural Gas, Non-Potable Water, Oil, Steam, Finish/Coating Black, Fitting Compatibility Class 300, Gravity Flow No, Inside Diameter 1 1/4 in, Manufacture Location Globally Sourced, Material Steel, Maximum Operating Pressure 2730 psi @ 650 Degrees F, Maximum Operating Temperature 600 Degrees F, Maximum Steam Pressure 2730 psi @ 650 Degrees F, Metal Pipe Construction Seamless, Minimum Operating Temperature -20 Degrees F, Nominal Pipe Size 1 1/4 in