Nickel Alloys Monel K500 Couplings

Nickel Alloys Monel K500 Couplings are small, cylindrical pipe fittings used primarily to join two pipe sections of the same nominal bore. Zeron Fasteners manufactures and supplies these precise high-strength fittings from the precipitation-hardenable nickel-copper alloy Monel K500 (UNS N05500). The product is engineered for high-pressure service, available in threaded or socket weld configurations, ensuring a strong, secure, and leak-proof joint. Monel K500 is distinguished by its superior strength and hardness over Monel 400, achieved through age-hardening. Crucially, the material adheres to NACE MR0175 standards for resistance to Sulfide Stress Corrosion Cracking (SSCC). The primary application of these Monel K500 Couplings is in threaded and socket weld piping systems within deep-well production, critical offshore platform piping, high-pressure chemical dosing lines, and marine installations where reliability under extreme stress and corrosive attack is mandatory.

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Monel K500 Couplings

Nickel Alloys Monel K500 Couplings Chemical Composition

Element Content (%)
Nickel (Ni) 63.0 min
Copper (Cu) 27.0–33.0
Aluminum (Al) 2.30–3.15
Iron (Fe) 2.0 max
Manganese (Mn) 1.5 max
Titanium (Ti) 0.35–0.85
Carbon (C) 0.25 max

Nickel Alloys Monel K500 Couplings Mechanical Properties

Property Value (Age-Hardened)
Tensile Strength (min) 1100 MPa (160 ksi)
Yield Strength (0.2% Offset min) 760 MPa (110 ksi)
Elongation in 4D (min) 20%
Hardness (Brinell typ.) 265-320 HB

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