Inconel 625 is a nickel-chromium-based superalloy that is highly regarded for its exceptional resistance to high-temperature oxidation and corrosion. It contains significant amounts of nickel (Ni), chromium (Cr), molybdenum (Mo), and iron (Fe), which make it one of the most durable and heat-resistant alloys available. Inconel 625 is widely used in industries where high stress, extreme temperatures, and corrosive environments are a factor.


Chemical Composition (Typical Range):

✅ Nickel (Ni): 58.0% – 63.0%

✅ Chromium (Cr): 20.0% – 23.0%

✅ Molybdenum (Mo): 8.0% – 10.0%

✅ Iron (Fe): 5.0% – 10.0%

✅ Niobium (Nb): 3.15% – 4.15%

✅ Tungsten (W): ≤ 1.0%

✅ Manganese (Mn): ≤ 1.0%

✅ Silicon (Si): ≤ 0.5%

✅ Carbon (C): ≤ 0.10%

✅ Sulfur (S): ≤ 0.015%

✅ Phosphorus (P): ≤ 0.015%

Key Features:

✅ Excellent High-Temperature Strength: Capable of maintaining its strength and structural integrity even at temperatures up to 1,000°C (1,800°F).

✅ Superior Corrosion Resistance: Exceptional in corrosive environments, particularly in seawater, sulfuric acid, and oxidizing acids.

✅ Oxidation and Scaling Resistance: Great resistance to oxidation and scaling at elevated temperatures, making it ideal for aerospace, marine, and power generation industries.

✅ Good Weldability: Despite its complex composition, Inconel 625 is known for its easy weldability, making it a popular choice for difficult-to-weld materials.

✅ Fatigue and Thermal-Cycling Resistance: Well-suited for applications involving high fatigue stress and thermal cycling.

✅ Non-Magnetic: Generally non-magnetic, even in high-stress applications.

Applications:

✅ Aerospace Industry: Used in jet engines, exhaust systems, and turbine components due to its resistance to extreme heat.

✅ Marine Industry: Found in marine exhaust systems, shipbuilding, and subsea oil & gas equipment where corrosion resistance is crucial.

✅ Power Generation: Often used in nuclear reactors, gas turbines, and heat exchangers for extreme high-temperature environments.

✅ Chemical Processing: Used in chemical reactors, valves, and piping that require corrosion resistance in harsh environments.

✅ Industrial Gas Turbines: Critical in industrial turbines that operate at high temperatures and high pressures.

Scrap Forms Available:

📌 Sheet Scrap, Turnings, Shavings, Plates, Pipes, and Miscellaneous Inconel Scrap