Inconel 625 Couplings (UNS N06625, WNR 2.4856)

Inconel 625 Couplings are small, critical components designed to connect two pieces of pipe or tubing. Manufactured from the versatile nickel-chromium-molybdenum alloy 625, they provide outstanding high-temperature strength and superior protection against a wide range of corrosive media, including highly oxidizing and severe non-oxidizing acids. These Alloy 625 couplings are extensively used in demanding applications such as chemical processing, oil and gas exploration (especially sour gas environments), and marine applications due to their excellent resistance to chloride-ion stress-corrosion cracking and pitting. Zeron Fastners ensures the supply of precision-engineered couplings, available in both full and half configurations and in socket weld or threaded types, guaranteeing reliable and leak-proof connections for critical infrastructure.

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Inconel 625 Couplings

Inconel 625 Couplings Chemical Composition

Element Composition (%)
Nickel (Ni) $\ge 58.0$
Chromium (Cr) $20.0 - 23.0$
Molybdenum (Mo) $8.0 - 10.0$
Niobium + Tantalum (Nb + Ta) $3.15 - 4.15$
Iron (Fe) ≤ 5.0$
Carbon (C) ≤ 0.10$
Manganese (Mn) ≤ 0.50$
Silicon (Si) ≤ 0.50$
Sulfur (S) ≤ 0.015$
Aluminum (Al) ≤ 0.40$

Inconel 625 Couplings Mechanical Properties

Property Minimum Value (Annealed)
Tensile Strength $827 MPa / 120 KSI
Yield Strength (0.2% Offset) $414 MPa / 60 KSI
Elongation (in 2 in.) $30%
Hardness (Brinell) $250 \text{ max}$
Modulus of Elasticity $205 \text{ GPa} / 29.8 \times 10^6 \text{ psi}$

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