We're Alloy 625 suppliers - A nickel-chromium-molybdenum-niobium grade, commonly referred to as Inconel® 625, offers outstanding corrosion resistance and superb weldability.
Alloy 625, also known as Inconel® 625 (a registered trademark of Special Metals Corporation), is a nickel-chromium-molybdenum-niobium alloy designed for use in extreme environments that demand exceptional corrosion resistance, high strength, and superior weldability.
Thanks to its high nickel content, Alloy 625 is virtually immune to chloride-induced stress corrosion cracking, making it ideal for use in marine, offshore, chemical, and high-temperature applications. The addition of niobium enhances strength through solid-solution hardening, eliminating the need for post-weld heat treatment.
NeoNickel supplies certified grades including 625 LCF® and ATI 625 HP®, offering enhanced fatigue resistance and deep drawing capabilities.
% | Cr | Ni | Mo | Co | Nb+Ta | Al | Ti | C | Fe | Mn | Si | P | S |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Min | 20 | - | 8 | - | 3.15 | - | - | - | - | - | - | - | - |
Max | 23 | Balance | 10 | 1 | 4.15 | 0.4 | 0.4 | 0.1 | 5.0 | 0.5 | 0.5 | 0.015 | 0.015 |
Designed for high performance across variable and elevated temperatures.
Mechanical & Physical Properties | 21°C | 204 °C | 316 °C | 427 °C | 538 °C | 649 °C | 760 °C | 871 °C |
---|---|---|---|---|---|---|---|---|
Ultimate Tensile Strength /Mpa | 992.9 | 923.9 | 910.1 | 910.1 | 896.3 | 820.5 | 537.8 | 275.8 |
0.2% Yield Strength /MPa | 579.2 | 455.1 | 434.4 | 420.6 | 420.6 | 413.7 | 406.8 | 268.9 |
Elongation % | 44 | 45 | 42.5 | 45 | 48 | 34 | 59 | 117 |
Coefficient of Thermal Expansion µm/m⁰C | - | 13.1 | 13.3 | 13.7 | 14 | 14.8 | 15.3 | 15.8 |
Thermal Conductivity /kcal/(hr.m.°C) | 8.5 | 10.7 | 12.2 | 13.5 | 15 | 16.4 | 17.9 | 19.6 |
Modulus of Elasticity/ MPa | 2.07 | 1.93 | 1.93 | 1.86 | 1.79 | 1.65 | 1.59 | - |
Alloy 625 is trusted across industries for its exceptional resistance to corrosion, heat, and mechanical stress, making it ideal for critical components in challenging environments.
Chemical Processing Industry
Aerospace & Defense
Marine & Offshore
Power & Energy
Environmental & Industrial
Alloy 625 offers a robust combination of long-term corrosion resistance, mechanical durability, and fabrication versatility, making it an ideal material solution for demanding environments across marine, energy, aerospace, and chemical sectors.
Alloy 625 is a trusted choice for industries requiring proven long-term durability, corrosion resistance, and design flexibility. For application support or a tailored quote, contact our team of materials specialists today.
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