Stainless Steel Threaded Fittings
(1) Stainless steel threaded fittings shall be Schedule 40 or greater and shall conform to,
(a) ASTM A182 / A182M, “Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service”, or
(b) ASTM A351 / A351M, “Castings, Austenitic, for Pressure-Containing Parts”.
(2) Stainless steel threaded fittings shall be made of a material that matches the grade of the pipe material used.
Article 7.2.6.13 Ontario Regulation 332/12 Building Code, O. Reg. 332/12: BUILDING CODE (ontario.ca) © Queen’s Printer for Ontario, 2021.