- Featuring 316 stainless steel construction, this GRAINGER APPROVED coupling 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 Pipe Fitting Material / 316 Stainless Steel, Stainless Steel Material Grade / 316 Class / Class 3000 Fitting Side A Nominal Pipe Size / 1/2 in Fitting Side A Gender / Female Fitting Side A Type / NPT Fitting Side A Pipe Threading / 14 Fitting Side B Nominal Pipe Size / 1/2 in Fitting Side B Gender / Female Fitting Side B Type / NPT Fitting Side B Pipe Threading / 14 Max. Steam Pressure / 2500 psi @ 350 Degrees F Standards / ASME B16.11, ASTM A182