Alloy 625 Bars (UNS N06625)

Maass Special Alloys supplies Alloy 625 bars as rolled and forged bar upon request. Also known as Inconel 625, UNS N06625 or EN 2.4856, this nickel-chromium-molybdenum-niobium alloy combines high strength with strong resistance to corrosion and elevated-temperature service. The supply range runs from small diameters up to 600 mm.

High-quality Alloy 625 bars

Certified nickel alloy bar supply for severe service.

High strength

Strong mechanical performance without hardening.

Corrosion resistance

Reliable in aggressive media.

Nickel alloy 625

Ni-Cr-Mo-Nb alloy grade.

Rolled & forged

Available as rolled or forged bar.

Certified supply

EN 10204 3.1 or 3.2.

Alloy 625 bar specifications and certification

Responsive Specification Table
Property Value
Material Alloy 625 / Inconel 625
UNS N06625
EN / WNR 2.4856
Product forms Rolled bar and forged bar
Delivery time Approx. 1 - 2 weeks

Alloy 625 bar can be supplied on request in rolled or forged form. The total supply scope runs from small diameters up to 600 mm. Larger sections are generally handled through a forged bar route, while rolled bar availability depends on the required diameter, specification and mill availability.

Certified supply & additional information

  • EN 10204 / 3.1 certified
  • ASTM / ASME specifications available where applicable
  • Material supplied in compliance with applicable international specifications
  • Random lengths or cut-to-length supply
  • Heat number traceability

Upon request

  • Additional testing
  • EN 10204 / 3.2 certification
  • Third-party inspection

Chemical composition

Alloy 625 / UNS N06625 is a nickel-chromium-molybdenum alloy strengthened by niobium and tantalum. Its composition is designed to combine high strength with resistance to pitting, crevice corrosion and a broad range of corrosive environments.

Below chemical composition limits are provided for quick reference. Final compliance is confirmed by the Mill Test Certificate and the applicable order specification.

Responsive Chemical Composition Table
Element Limit (%)
Nickel (Ni) 58.0 min.
Chromium (Cr) 20.0 – 23.0
Iron (Fe) 5.0 max.
Molybdenum (Mo) 8.0 – 10.0
Niobium + Tantalum (Nb+Ta) 3.15 – 4.15
Carbon (C) 0.10 max.
Manganese (Mn) 0.50 max.
Silicon (Si) 0.50 max.
Phosphorus (P) 0.015 max.
Sulfur (S) 0.015 max.
Aluminum (Al) 0.40 max.
Titanium (Ti) 0.40 max.
Cobalt (Co) 1.0 max.
Copper (Cu) 0.50 max.

Typical physical and mechanical properties of Alloy 625

The values below give a general indication of typical Alloy 625 bar properties. Actual values can vary depending on diameter, product form, heat treatment, supply condition and final order specification.
Responsive Properties Table
Property Unit Typical value
Density lb/in³ 0.305
Density g/cm³ approx. 8.44
Melting range °F 2350 – 2460
Melting range °C approx. 1290 – 1350
Specific heat at 70°F Btu/lb-°F 0.098
Mean thermal expansion at 200°F x10-6 in/in-°F 7.1
Thermal conductivity at 70°F Btu-in/ft²-h-°F 68
Modulus of elasticity at 70°F 10³ ksi 30.1
Poisson’s ratio at 70°F - 0.278
Tensile strength ksi 100 – 120
Yield strength ksi 40 – 60
Elongation % 30

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sales@maass-special-alloys.com

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