PART 7 — PLUMBINGUpdated for the 2024 Ontario Building Code

7.2.6.12.Stainless Steel Pipe Flanges

(1) Stainless steel pipe flanges shall conform to ASME B16.5, “Pipe Flanges and Flanged Fittings: NPS ½ through NPS 24 Metric/Inch Standard,” and (a) ASTM A182 / A182M, “Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service,” or (c) ANSI/AWWA C228, “Stainless-Steel Pipe Flanges For Water Service – Sizes 2 in. through 72 in. (50 mm through 1,800 mm).” (2) Stainless steel pipe flanges shall be made of a material that matches the grade of the pipe material used.

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Code text is reproduced for reference from the Ontario Building Code (O. Reg. 163/24, 2024 Building Code Compendium). This page is provided for general information and is not an official copy. Always verify requirements against the official Ontario Building Code and confirm with your local building department.