- Featuring 316 stainless steel construction, this GRAINGER APPROVED cap fitting has a higher nickel content, as well as molybdenum, for better corrosion resistance.- Compatible with Schedule 80 stainless steel pipe- For use in air, water, and natural gas applications Nominal Pipe Size / 3/4 in Pipe Fitting Material / 316 Stainless Steel, Stainless Steel Material Grade / 316 Fitting Connection Type / Female NPT Max. Steam Pressure / 2500 psi @ 350 Degrees F Standards / Material Conforms To ASTM-A-182, Threads Conform To ANSI/ASME B1.20.1 meets ASME B16.11