Products Description
| Element | Content Range | Function |
|---|---|---|
| Nickel (Ni) | 42.0% - 46.0% | Endows the alloy with good corrosion resistance, especially excellent resistance to chloride ion stress corrosion cracking. |
| Chromium (Cr) | 19.5% - 22.5% | Forms a dense oxide film on the surface of the alloy, improving its oxidation resistance and corrosion resistance, and also helps to enhance the strength and hardness of the alloy. |
| Iron (Fe) | ≥22.0% | An important component of the alloy, helps to reduce costs and affects the performance of the alloy to a certain extent. |
| Molybdenum (Mo) | 2.5% - 3.5% | Significantly improves the corrosion resistance of the alloy in a reducing environment and enhances its resistance to pitting and crevice corrosion. |
| Copper (Cu) | 1.5% - 3.0% | Works in coordination with other elements to further improve the corrosion resistance and stress corrosion cracking resistance of the alloy. |
| Titanium (Ti) | 1.9% - 2.4% | Increases the strength of the alloy through precipitation hardening and also improves its welding performance. |
| Aluminum (Al) | 0.1% - 0.5% | Refines the grains in the alloy, improving its strength and toughness. |
Physical Properties
Density: Approximately 8.08 - 8.14 g/cm³.
Melting Point: Between 1311 - 1366℃.
Coefficient of Thermal Expansion: It has a moderate coefficient of thermal expansion, which can maintain good dimensional stability at different temperatures and reduce the stress and deformation caused by thermal expansion and contraction.
Electrical and Thermal Conductivity: It has good electrical and thermal conductivity, which can meet the heat transfer and electrical conduction requirements in some special working conditions.
Mechanical Properties
High Strength: After solution treatment and age hardening treatment, the Incoloy 925 alloy round plate has high tensile strength and yield strength. Generally, its tensile strength can reach above 965MPa, and the yield strength can reach above 758MPa.
Good Ductility: The elongation rate can generally reach more than 20%, which enables the alloy round plate to withstand a certain degree of deformation without cracking during processing and use.
High Hardness: It has a relatively high hardness, which can reach below HRC38, and has good wear resistance, making it suitable for some occasions requiring wear resistance.
Corrosion Resistance
Uniform Corrosion Resistance: In various corrosive media, such as acid, alkali, and salt solutions, the Incoloy 925 alloy round plate shows good uniform corrosion resistance. It can resist the erosion of corrosive media for a long time and maintain the integrity of the material.
Pitting and Crevice Corrosion Resistance: Due to the presence of elements such as molybdenum and chromium in the alloy, the passive film formed on the surface can effectively prevent the occurrence of pitting and crevice corrosion. Even in an environment containing corrosive ions such as chloride ions, it has excellent resistance.
Stress Corrosion Cracking Resistance: The high nickel content and reasonable combination of alloy components enable the alloy round plate to have strong stress corrosion cracking resistance when subjected to the combined action of tensile stress and corrosive media, greatly increasing its service life under harsh working conditions.
Processing and Forming Properties
Hot Working Properties: The Incoloy 925 alloy round plate has good plasticity at high temperatures and can be formed through hot working processes such as hot forging and hot rolling, and can be made into products of various sizes and shapes.
Cold Working Properties: It can also be cold worked, such as cold rolling and cold drawing. Through cold working, the strength and hardness of the alloy can be further improved, and a better surface quality can be obtained. However, during the cold working process, attention needs to be paid to controlling the processing parameters to avoid generating excessive processing stress.
Welding Properties: This alloy has good welding properties and can be welded using a variety of welding methods, such as tungsten inert gas welding and gas metal arc welding. The properties of the welded joint can meet the usage requirements.
Application Fields
Petroleum and Natural Gas Industry: It is often used to manufacture components of oil and gas drilling equipment, such as pipes, valves, flanges, packers, etc., and can work stably in an oil and gas environment containing corrosive media such as hydrogen sulfide and carbon dioxide.
Marine Engineering Field: Due to its excellent seawater corrosion resistance, it can be used to manufacture offshore drilling platforms, seawater cooling systems, ship components, etc., and can resist the erosion of seawater and various corrosive factors in the marine environment.
Chemical Industry: In chemical production, it can be used to manufacture equipment such as reaction vessels, heat exchangers, and pipelines, and can withstand the erosion of various corrosive media such as strong acids, strong alkalis, and salt solutions.
Aerospace Field: Because of its high-temperature strength and good corrosion resistance, it can be used to manufacture components of aerospace engines, aircraft structural components, etc., meeting the high-performance requirements of materials in the aerospace field.
Product Specifications and Supply Status
Specifications: The thickness of the Incoloy 925 alloy round plate usually ranges within a certain range, such as from a few millimeters to several tens of millimeters, and the diameter can also be customized according to customer requirements, generally ranging from a relatively small size to several meters.
Supply Status: It is usually supplied in the states of solution treatment, pickling, edge trimming, etc., to ensure that the round plate has good performance and surface quality.
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