Nickel Alloys Monel 400 Weld Neck Flanges

Nickel Alloys Monel 400 Weld Neck Flanges are highly specialized pipe flanges designed for use in the most severe service conditions, including high pressure, sub-zero, and elevated temperatures. Zeron Fasteners manufactures and supplies these premium high-strength flanges from the robust Monel 400 alloy (UNS N04400). The distinguishing feature of this product is its long tapered hub which is butt-welded to the pipe, providing a strong, stress-distributing joint that reduces stress concentration at the flange base. Monel 400 material is specifically chosen for its superior strength and exceptional resistance to corrosion by high-velocity seawater, hydrofluoric acid, and various caustic media. The primary application of these Monel 400 Weld Neck Flanges is in critical piping systems within offshore oil and gas platforms, heat exchange systems, chemical reactors, and anywhere leak-proof, high-integrity connections are absolutely necessary.

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Monel 400 Weld Neck Flanges

Nickel Alloys Monel 400 Weld Neck Flanges Chemical Composition

Element Content (%)
Nickel (Ni) 63.0 min
Copper (Cu) 28.0–34.0
Iron (Fe) 2.5 max
Manganese (Mn) 2.0 max
Silicon (Si) 0.5 max
Carbon (C) 0.3 max
Sulfur (S) 0.024 max

Nickel Alloys Monel 400 Weld Neck Flanges Mechanical Properties

Property Value
Tensile Strength (min) 550 MPa (80 ksi)
Yield Strength (0.2% Offset min) 240 MPa (35 ksi)
Elongation in 4D (min) 35%
Hardness (Brinell max) 175 HB

Nickel Alloys Monel 400 Weld Neck Flanges Products Feature

High Integrity Joint Corrosion Resistance Pressure Rating Radiography Compatible

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