This J.B. Smith swage nipple is designed specifically for oil-field applications - Swage nipple is traceable to the original mill test report - Model is steel stamped with the material specification, raw material code, and heat treatment Pipe Fitting Material / Carbon Steel Finish/Coating / Zinc Plated Class / Class XH For Pipe Schedule / 80 Fitting Side A Nominal Pipe Size / 3/4 in Fitting Side A Gender / Male Fitting Side A Type / NPT Fitting Side B Nominal Pipe Size / 1/2 in Fitting Side B Gender / Male Fitting Side B Type / NPT Color / Black Application / Natural Gas, Oil Standards / API 5B, API 5CT, ANSI B1.20.1, ASME B16.9, ASTM A234 WPB, ASTM A420 WPL6, ASTM B633, MSS SP-95, NACE MR-01-75