Inconel 825 bars are nickel-iron-chromium-molybdenum-copper alloy bars that offer exceptional corrosion resistance in aggressive environments. The bars have a high nickel content, enhancing their strength, durability, and resistance to oxidation. Inconel 825 bars are one of the most preferred materials for use in chemical and petrochemical processing, pollution control, oil and gas extraction, and offshore and marine environments.
This blog post provides a comprehensive guide for Nickel Alloy 825 Bar, including their composition, physical and mechanical properties, uses, heat treatment, and corrosion resistance. If you want reliable and durable bars, keep reading to discover more about Inconel 825 bars.
Inconel 825 Bars Composition
Incoloy 825 Square bar blend various metals, including nickel, iron, chromium, and molybdenum, with small amounts of copper, titanium, and aluminium. The bars have a nickel content of 38-46%, iron content of 22%, and chromium content of 19-23%. The molybdenum content is approximately 2.5-3.5%, the copper content is 1.5-3%, and small amounts of titanium and aluminum are added for strength and durability.
| Grade | Ni | Cr | Fe | Mb | Ti | Cu | Mn | C | S | Al | Si |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Incoloy 825 | 38.0 – 46.0 | 19.5 – 23.5 | 22.0 min | 2.5 – 3.5 | 0.6 – 1.2 | 1.5 – 3.0 | 1.0 max | 0.05 max | 0.03 max | 0.2 max | 0.5 max |
Inconel 825 Bars Physical Properties
Nickel Alloy 825 Round bars have unique physical properties that suit high-temperature applications and corrosive environments. The bars have a density of 8.14 g/cm3, a melting point of 1400°C, and a thermal conductivity of 10.4 W/m.K. They also have a coefficient of thermal expansion of 13.3 µm/m.°C and a specific heat capacity of 440 J/kg.K.
Inconel 825 Bars Mechanical Properties
2.4858 Alloy 825 bars are known for their exceptional mechanical properties, including high strength, excellent toughness, and superior corrosion resistance. The bars have a tensile strength of 550-750 MPa, a yield strength of 220-570 MPa, and an elongation of 30-45%. The bars have a Brinell hardness of 160-210 HB, a Rockwell B hardness of 85-95, and a Vickers hardness of 170-200.
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
|---|---|---|---|---|
| 8.14 g/cm3 | 1400 °C (2550 °F) | Psi – 80,000 , MPa – 550 | Psi – 32,000 , MPa – 220 | 30 % |
Inconel 825 Bars Equivalent
| STANDARD | WERKSTOFF NR. | UNS | GOST | AFNOR | JIS | BS | EN | OR |
|---|---|---|---|---|---|---|---|---|
| Incoloy 825 | 2.4858 | N08825 | ЭП703 | NFE30C20DUM | NCF 825 | NA 16 | NiCr21Mo | XH38BT |
Inconel 825 Bars Uses
UNS N08825 Bright Bar are widely used in various applications that require strength, durability, and corrosion resistance. The bars are commonly used in chemical and petrochemical processing, pollution control, oil and gas extraction, offshore and marine environments, and heat exchangers and condensers. Inconel 825 Hex Bar are also used in marine propulsion systems, desalination plants, and nuclear power generation.
Inconel 825 Bars Corrosion Resistance and Heat Treatment
Incoloy 825 Square bar offer excellent resistance to various corrosive environments, including sulfuric acid, phosphoric acid, nitric acid, and seawater. The bars also exhibit good resistance to stress corrosion cracking and pitting corrosion. Inconel 825 bars can be heat-treated by annealing or solution heat treatment. Annealing involves heating the bars at 705-870°C for 1-2 hours, followed by air cooling. Solution heat treatment involves heating the bars at 1000-1100°C for 1-2 hours, followed by water quenching.
Conclusion:
2.4858 Alloy 825 bars are popular for applications requiring high strength, excellent toughness, and superior corrosion resistance. The bars comprise nickel, iron, chromium, and molybdenum, with small amounts of copper, titanium, and aluminium. They have exceptional physical and mechanical properties and are widely used in chemical and petrochemical processing, pollution control, oil and gas extraction, offshore and marine environments, and heat exchangers and condensers. UNS N08825 Bar offer excellent resistance to corrosion and can be heat-treated by annealing or solution heat treatment. They are durable and reliable and have proven to be highly effective in various high-temperature and corrosive environments. Whether in the chemical processing industry or the oil and gas sector, Inconel 825 bars are an ideal choice for your applications.
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