Home / Catalog / Two-Piece Flanges to fit Tube Stub Ends and Angle Rings Two-Piece Flanges to fit Tube Stub Ends and Angle Rings Sizes to fit both tube stub ends and tube angle ends Available in: T-316L Stainless Steel tube backing rings T-304L Stainless Steel tube backing rings Class 75 and Class 150 Thicknesses Available Carbon Steel – coated for corrosion protection Coatings Include: Electro-Zinc Plate E-Coat Epoxy Class 75 Marzolf Two-Piece Flanges to fit OD Tube Stub Ends and OD Tube Angle Rings: Carbon Steel, Stainless Steel (80) Class 150 Marzolf Two-Piece Flanges to fit OD Tube Angle Rings: Carbon Steel, Stainless Steel (40) Request Information