Monel butt weld fittings are governed by ASTM B366 (material specification) and ASME B16.9 (dimensional specification). They are manufactured in grades like Monel 400 (UNS N04400) and Monel K500 (UNS N05500) to offer high strength and supreme resistance to marine and chemical corrosion. [1, 2, 3, 4] Material Standards & Grades • Specification: ASTM B366 / ASME SB366 • Monel 400 Grade: UNS N04400 (Werkstoff Nr. 2.4360) • Monel K500 Grade: UNS N05500 (Werkstoff Nr. 2.4375) [1, 5, 6, 7, 8] Dimensions & Design Standards • Factory-Made Fittings: ASME / ANSI B16.9 • Short Radius Bends: ASME B16.28 • Wrought Lightweight Fittings: MSS SP-43 • Butt Welding Ends: ASME B16.25 [5, 9] Size and Schedling Parameters • Seamless Sizes: 1/2 inch to 10 inch • Welded Sizes: 1/2 inch to 48 inch • Wall Thickness / Schedule: Sch 5S, Sch 10S, Sch 40, Sch 80, Sch XS, to Sch XXS [5, 6]

Submit Your Enquiry