Incoloy 25-6mo

Incoloy Alloy 25-6MO (UNS N08926) – Composition, Properties, and Uses

In today’s world, materials used in manufacturing industries play a vital role in the product’s performance. Regarding high-performance materials, Incoloy 25-6mo is one of the best choices. It is a superalloy with excellent corrosion resistance, high strength, and excellent stability at high temperatures. It is often used in marine, oil and gas, chemical, and nuclear industries. This blog post will give you a detailed overview of Incoloy 25-6mo’s composition, physical and mechanical properties, uses, and heat treatment.

Incoloy 25-6MO Composition

Incoloy 25-6mo is a nickel-based superalloy that contains 25% chromium, 6% molybdenum, 1.5% iron, 1.5% manganese, 0.45% carbon, and 0.15% silicon. It is also known as Alloy 625, a registered trademark of Special Metals Corporation.

Element Content (%)
Iron, Fe 47.3
Nickel, Ni 24-26
Chromium, Cr 19-21
Molybdenum, Mo 6-7
Manganese, Mn ≤2
Others Remainder

Incoloy 25-6MO Physical Properties

Incoloy 25-6mo has a density of 8.3 g/cm³ and a melting point of 1350°C. It has excellent resistance to corrosion, oxidation, and pitting. It also has good weldability and can be easily formed into different shapes.

Properties Metric Imperial
Density 8.03 gm/cm3 0.290 lb/in3

Incoloy 25-6MO Mechanical Properties

Incoloy 25-6mo has an ultimate tensile strength of 1034 MPa, a yield strength of 483 MPa, a modulus of elasticity of 204 GPa, and a Poisson’s ratio of 0.3. It is known for its exceptional strength, creep resistance, and toughness.

Properties Metric Imperial
Tensile strength(annealed) 689 MPa 100 ksi
Yield strength(annealed) 331 MPa 48 ksi
Elongation at Break( in 2 in 50 mm) ≥42% ≥42%
Hardness, Rockwell B 86 86
Modulus of Elasticity 188 GPa 27300 ksi
Poissons Ratio 0.33 0.33

Incoloy 25-6MO Uses

Incoloy 25-6mo is used in many applications requiring high corrosion resistance and strength. It is mainly used in marine, oil and gas, chemical, and nuclear industries for various purposes, such as heat exchangers, valves, pumps, and turbine blades. It is also used in the aerospace industry for engine components, exhaust systems, and gas turbines.

Incoloy 25-6MO Hardness

Incoloy 25-6mo has a Brinell hardness of 203 and a Rockwell B hardness of 92. It is a high-strength alloy that retains its hardness and strength even at high temperatures.

Incoloy 25-6MO Heat Treatment

Incoloy 25-6mo can be heat-treated by annealing, solution treating, and precipitation hardening. Annealing involves heating the alloy to a specific temperature and cooling it slowly. Solution treating consists in heating the alloy to a specific temperature, quenching it in water, and then ageing it. Precipitation hardening involves heating the alloy to a specific temperature, quenching it in water, and then ageing it at a lower temperature.

Conclusion:

Incoloy 25-6mo is a unique superalloy that offers excellent corrosion resistance, high strength, and stability at high temperatures. Its composition, physical and mechanical properties, uses, hardness and heat treatment make it an excellent choice for various applications. By understanding the properties of Incoloy 25-6mo, you can make informed decisions about using this alloy in your manufacturing processes and products. If you are looking for a reliable high-performance alloy, Incoloy 25-6mo is worth considering.

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