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Incoloy 825 Round Bars Incoloy 825 Round Bars Incoloy 825 Round Bars Incoloy 825 Round Bars Incoloy 825 Round Bars

Incoloy 825 Round Bars

1250.0 INR/Piece
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Product Details:

  • Length 1 meter to 6 meters (custom cut available)
  • Technique Hot Rolled/Cold Drawn
  • Standard ASTM B425, ASME SB425
  • Specific Use Pressure vessels, Heat exchangers, Marine exhaust systems, Sour gas handling, Pollution-control equipment
  • Type Round Bar
  • Tolerance h9/h11 or as specified
  • Diameter 6mm to 350mm
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Incoloy 825 Round Bars Price And Quantity

  • 1250.0 INR/Piece
  • 1 Piece

Incoloy 825 Round Bars Product Specifications

  • Bright, Polished, Black
  • Annealed, Peeled, Centerless Ground
  • Incoloy 825
  • Chemical processing, Oil and gas, Power generation, Pollution control, Pickling tank heaters, Acid production plants
  • UNS N08825, W.Nr. 2.4858
  • 6mm to 350mm
  • h9/h11 or as specified
  • Round Bar
  • Pressure vessels, Heat exchangers, Marine exhaust systems, Sour gas handling, Pollution-control equipment
  • ASTM B425, ASME SB425
  • Hot Rolled/Cold Drawn
  • 1 meter to 6 meters (custom cut available)
  • Bundled, Wrapped with plastic, Wooden boxes
  • Brinell 170 max
  • Smooth, Free of surface defects
  • 300 MPa min
  • 30% min in 50mm
  • 1370C - 1400C
  • 8.14 g/cm3
  • Excellent resistance to oxidizing and reducing acids
  • Rounds, Hex, Square, Rectangular, Billet, Forged Bar
  • 690 MPa min

Product Description

Material Summary

Incoloy 825 (UNS N08825 / W.Nr. 2.4858) is a highly versatile nickel-iron-chromium superalloy optimized for performance in aggressively corrosive, chemical, and aqueous environments. While frequently marketed under the "Inconel" moniker by commercial distributors, it belongs technically to the Incoloy family due to its substantial iron content ($>22.0%$).

Unlike the Alloy 800 series which prioritizes high-temperature creep strength, Alloy 825 introduces key additions of molybdenum, copper, and titanium to provide specialized resistance to severe chemical reduction, pitting, and intergranular attacks.

Chemical Matrix & Metallurgical Stabilization

The deliberate balancing of elements gives UNS N08825 round bars unique corrosion-resistant dynamics:

  • Nickel (38.0% 46.0%): Provides a resilient baseline that protects components against chloride-ion stress corrosion cracking (SCC) and ensures an exceptionally stable austenitic microstructure.

  • Molybdenum (2.5% 3.5%) & Copper (1.5% 3.0%): Work in combination with nickel to resist aggressive reducing acids, specifically delivering top-tier resilience when exposed to sulfuric, phosphoric, and organic processing acids.

  • Chromium (19.5% 23.5%): Shields the material from oxidizing conditions, nitrates, and highly corrosive organic salts.

  • Titanium (0.6% 1.2%): Acts as a stabilizing agent during high-temperature thermal exposure or welding. Titanium binds with carbon to form titanium carbides, preventing chromium carbide precipitation at the grain boundaries, which fully eliminates the risk of intergranular corrosion (sensitization).

Key Mechanical & Technical Properties

  • Tensile Strength: $ge 550 text{ MPa}$ ($80 text{ ksi}$)

  • Yield Strength (0.2% Offset): $ge 220 text{ MPa}$ ($32 text{ ksi}$)

  • Elongation at Break: $ge 30%$

  • Density: $8.14 text{ g/cm}^3$

  • Melting Range: $1370^circtext{C} - 1400^circtext{C}$ ($2500^circtext{F} - 2550^circtext{F}$)

  • Compliance Standards: Extensively sourced to meet strict NACE MR0175 / ISO 15156 compliance criteria for critical downhole and sour gas configurations.

Sourcing Forms & Industry Variations

Industrial stockists supply these round bars across an array of manufacturing dimensional ranges (typically from 3mm up to 500mm diameters) and finishes:

  • For harsh processing conditions demanding deep certification, hot-forged and precision-machined bars like the Inconel 825 Round Bar feature polished surfaces, compliance with ASTM B425 / ASME SB425, and strict NACE MR 0175 certification for nuclear and oil & gas setups.

  • Primary Applications

    • Oil & Gas Industry: Downhole equipment components, sour gas processing wellheads, valve internals, and high-strength fasteners.

    • Chemical Processing: Agitator shafts, heat exchanger tubes, and processing systems utilizing sulfuric, nitric, or phosphoric acids.

    • Marine Engineering: Propeller shafts, marine hardware, and exhaust systems subject to high-salinity seawater exposure.

    • Nuclear Processing: Fuel element dissolving systems and highly monitored radioactive waste handling hardware.



Outstanding Corrosion Resistance

Incoloy 825 bars excel in resisting both oxidizing and reducing acids, making them ideal for applications in harsh environments such as chemical processing, pollution control, and acid production. Their chemical composition ensures reliable performance and longevity even under severe conditions.


Versatile Forms and Applications

These round bars come in various profiles, including hex, square, rectangular, and billet. They are fabricated via hot rolling or cold drawing, with post-processing options such as annealing and centerless grinding. Their adaptability supports use in pressure vessels, heat exchangers, and marine exhaust systems.


Stringent Manufacturing and Quality Standards

Every Incoloy 825 round bar adheres to international standards ASTM B425/ASME SB425 and strict tolerance criteria (h9/h11). The surface is kept smooth and free from defects, while packaging methods-bundled, plastic-wrapped, or wooden boxes-ensure safe transport and storage.

FAQ's of Incoloy 825 Round Bars:


Q: How are Incoloy 825 Round Bars processed to ensure quality and surface finish?

A: Incoloy 825 Round Bars are produced using hot rolling or cold drawing techniques, followed by treatments like annealing, peeling, and centerless grinding. This multi-step process yields a smooth, defect-free surface, improving the material's durability and aesthetic finish.

Q: What benefits does Incoloy 825 provide in chemical and marine environments?

A: Thanks to its outstanding resistance to oxidizing and reducing acids, as well as chloride-induced stress corrosion, Incoloy 825 offers exceptional durability in chemical processing, acid production plants, and marine exhaust systems, reducing maintenance and replacement costs.

Q: Where are Incoloy 825 Round Bars commonly applied?

A: These bars are extensively utilized in industries such as oil and gas, power generation, pollution control equipment, pickling tank heaters, and sour gas handling, due to their resistance to corrosion and ability to withstand high pressure and temperature environments.

Q: What is the available size range and can these round bars be custom cut?

A: Incoloy 825 Round Bars come in diameters ranging from 6mm to 350mm and lengths between 1 and 6 meters. Custom cut lengths are available to meet specific project requirements.

Q: When should Incoloy 825 Round Bars be chosen over other nickel alloys?

A: Select Incoloy 825 Round Bars when the application demands superior corrosion resistance, especially in environments containing sulfuric, phosphoric, or nitric acids, or when handling sour gas and high-temperature conditions in industrial processes.

Q: How are the bars packaged for safe delivery?

A: To prevent damage and contamination, Incoloy 825 Round Bars are bundled, wrapped in plastic, or packed in sturdy wooden boxes before shipping, ensuring they arrive in pristine condition.

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