Inconel 625 Round Bar Diameter 10 - 350mm In 6m Length UNS N06625 Alloy Rod

Inconel 625 Round Bar Diameter 10 - 350mm in 6m Length UNS N06625 Alloy Rod

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Description of Inconel 625 Round Bar

Inconel 625 is a nickel-chromium-molybdenum superalloy known for its exceptional strength, corrosion resistance, and high-temperature stability. The round bars made from Inconel 625 are widely used in demanding industries such as aerospace, chemical processing, and marine engineering due to their excellent mechanical properties and resistance to oxidation and pitting.

Key Parameters & Specifications of Inconel 625 Round Bar

• Material Composition (Typical %):

  • Nickel (Ni): ≥ 58%

  • Chromium (Cr): 20-23%

  • Molybdenum (Mo): 8-10%

  • Niobium (Nb): 3.15-4.15%

  • Iron (Fe): ≤ 5%

  • Carbon (C): ≤ 0.10%

  • Manganese (Mn): ≤ 0.50%

  • Silicon (Si): ≤ 0.50%

  • Aluminum (Al): ≤ 0.40%

  • Titanium (Ti): ≤ 0.40%

• Mechanical Properties:

  • Tensile Strength: ≥ 830 MPa (120 ksi)

  • Yield Strength (0.2% offset): ≥ 415 MPa (60 ksi)

  • Elongation: ≥ 30%

  • Hardness: ≤ 90 HRB (Rockwell B)

• Thermal Properties:

  • Melting Range: 1290-1350°C (2350-2460°F)

  • Operating Temperature: Up to 980°C (1800°F) in oxidizing environments

Standards & Equivalent Grades of Inconel 625 Round Bar

• International Standards:

  • ASTM B446 – Standard specification for Inconel 625 seamless and welded round bars

  • AMS 5666 – Aerospace material standard for bars, forgings, and rings

  • UNS N06625 – Unified Numbering System designation

  • EN 2.4856 – European standard equivalent

• Equivalent Grades:

  • Werkstoff Nr. 2.4856 (Germany)

  • NCF 625 (Japan)

  • Alloy 625 (Common trade name)

Advantages & Features of Inconel 625 Round Bar

1. Exceptional Corrosion Resistance – Resists pitting, crevice corrosion, and stress corrosion cracking (SCC) in harsh environments, including seawater and acidic media.

2. High Strength & Toughness – Maintains mechanical properties at both cryogenic and elevated temperatures.

3. Oxidation Resistance – Performs well in high-temperature oxidizing atmospheres.

4. Fabrication Flexibility – Can be welded, machined, and formed using standard techniques.

5. Long Service Life – Ideal for critical applications requiring durability and reliability.

Applications of Inconel 625 Round Bar

Inconel 625 round bars are used in industries requiring high-performance materials, including:

• Aerospace: Jet engine components, exhaust systems, turbine blades.

• Chemical Processing: Reactors, heat exchangers, piping systems.

• Marine Engineering: Propeller blades, submarine components, seawater equipment.

• Oil & Gas: Downhole tools, valves, pumps in sour (H₂S) environments.

• Nuclear Industry: Reactor core components, fuel reprocessing systems.

• Power Generation: Gas turbines, heat-resistant ducting.

Conclusion

Inconel 625 round bars offer a unique combination of strength, corrosion resistance, and thermal stability, making them indispensable in extreme environments. Their compliance with international standards and availability in various dimensions ensure broad applicability across multiple high-tech industries.

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