Inconel® 625 (Alloy 625) Wire UNS N06625

Inconel 625 is a non-magnetic, corrosion and oxidation resistant, nickel-chromium alloy.

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Inconel 625 Shaped, Flat, Square, Round, Fine Wire, Plated and Un-plated AMS 5599, AMS 5666, AMS 5837, AMS 5979, ASTM B443

Inconel 625 Alloy Wire Description

Inconel 625 is a non-magnetic, corrosion and oxidation resistant, nickel-chromium alloy. This material can be used because of its high strength, excellent uniform corrosion resistance, resistance to stress cracking and excellent pitting resistance in 500°-600°F (260-316°C) water. Its outstanding strength and toughness in the temperature range from cryogenic to 2000°F (1093°C) are derived primarily from the solid solution effects of the refractory metals columbium and molybdenum in a nickel-chromium matrix. The alloy has excellent fatigue strength and stress corrosion cracking to chloride ions.

Inconel 625 Applications

Heat exchanger header bars
Wire rope for mooring cables,
Metal seals
Chemical processing components

Chemistry Typical

Nickel: 58.00 min
Chromium: 20.0-23.0
Iron: 5 max
Molybdenum: 8.0-10.0
Columbium + Tantalum: 3.15-4.15
Manganese: 0.50 max
Carbon: 0.10 max
Silicon: 0.50 max
Phosphorus: 0.015 max
Sulfur: 0.015 max
Aluminum: 0.40 max
Titanium: 0.40 max
Cobalt: 1.00 max

Physical Properties

Density: 0.305 lbs/in³, 8.44 g/cm³

Mean Coefficient of Thermal Expansion: in/in/°F (m/m/°C)
68-400°F (20-204°C): 7.3 x 10 (13.1)
68-600°F (20-315°C): 7.5 x 10 (13.5)
68-800°F (20-427°C): 7.7 x 10-6 (13.9)

Magnetic Permeability H= 200 Oersteds: Annealed: 1.0006

Modulus of Elasticity: KSI (MPa) in Tension
30.2 x 10³ (208 x 10³)

Melting Range, °F 2350-2460 (°C1290-1350)

Mechanical Properties at Room Temperature

Annealed Typical

Ultimate Tensile Strength: 120 KSI min (827 MPa min)
Yield Strength: (0.2% offset) 60 KSI min (414 MPa min)
Elongation: 30% min ( gauges > 0.040inched

Properties Tempered

Alloy 625 can be cold rolled to achieve the temper properties required by specific customers and/or manufacturing requirements. Contact Ulbrich Wire for details.

Additional Properties of Inconel 625

Inconel is a Corrosion Resistant Alloy

Refer to NACE (National Association of Corrosion Engineers) for recommendations

Standard Wire Finishes

Extra Clean: (XC) Extra clean is also referred to as “bright annealed” or “bright annealed and cold rolled”

Grease (round wire only): Drawn in a heavy grease produces an “Ultra bright” finish for decorative applications

Soap (round wire only): Soap is used as a lubricant in the drawing process and is not removed. It acts as a lubricant during customer part forming operation.

A soap finish is available in tempered products.
Plated: Many plating options are available.
*Special finishes are available: Contact Ulbrich Wire Sales with special finish and plating requests.


Continuous Coils
Cut to lengths
Precision cutting

Heat Treatment

Alloy625 cannot be hardened heat treating

Welding Inconel 625

For best results refer to: SSINA’s “Welding of Stainless Steels and Other Joining Methods”
*Inconel®625 is a registered trademark of the Special Metals Corp

Limitation of Liability and Disclaimer of Warranty: In no event will Ulbrich Stainless Steels and Special Metals, Inc., be liable for any damages arising from the use of the information included in this document or that it is suitable for the ‘applications’ noted. We believe the information and data provided to be accurate to the best of our knowledge but, all data is considered typical values only. It is intended for reference and general information and not recommended for specification, design or engineering purposes. Ulbrich assumes no implied or express warranty in regard to the creation or accuracy of the data provided in this document.

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