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Incoloy 825 Hexagonal Bars – Corrosion-Resistant & High Durability
Incoloy 825 Hexagonal Bars are high-performance nickel-iron-chromium alloy bars engineered for superior corrosion resistance in aggressive environments. Enhanced with molybdenum, copper, and titanium, these hex bars offer outstanding durability, excellent mechanical strength, and long-term reliability in chemical processing, marine, oil & gas, and pollution control industries.
- Overview
- Specification
- Applications
- FAQs
- Recommended Products
Incoloy 825 hexagonal bars are manufactured from a versatile nickel-based alloy known for its exceptional resistance to both oxidizing and reducing corrosive environments. The addition of molybdenum and copper significantly improves resistance to sulfuric and phosphoric acids, while titanium stabilizes the alloy against intergranular corrosion.
The hexagonal shape provides improved grip during machining and assembly, making these bars ideal for producing fasteners, shafts, valve components, fittings, and other precision-engineered parts. With excellent resistance to pitting, crevice corrosion, and stress corrosion cracking, Incoloy 825 hexagonal bars are widely used in demanding industrial applications where reliability and longevity are critical.
Our Incoloy 825 hex bars are available in various sizes, lengths, and custom specifications to meet diverse project requirements while maintaining consistent quality and dimensional accuracy.
Key Features of Incoloy 825 Hexagonal Bars
Excellent Corrosion Resistance: Highly resistant to both oxidizing and reducing acids, such as sulfuric and phosphoric acid.
High Durability: Maintains mechanical strength under extreme environmental conditions.
Superior Pitting and Crevice Corrosion Resistance: Suitable for marine and chemical industries.
Outstanding Weldability and Fabricability: Easily formed and welded without compromising properties.
Thermal Stability: Performs well at high temperatures in harsh industrial environments.
| Element | Percentage (%) |
|---|---|
| Nickel (Ni) | 38.0-46.0 |
| Iron (Fe) | Balance |
| Chromium (Cr) | 19.5-23.5 |
| Molybdenum (Mo) | 2.5-3.5 |
| Copper (Cu) | 1.5-3.0 |
| Titanium (Ti) | 0.6-1.2 |
| Carbon (C) | 0.05 max |
Applications of Incoloy 825 Hexagonal Bars
Due to its exceptional corrosion resistance and mechanical properties, Incoloy 825 hexagonal bars are widely used in industries such as:
Chemical Processing: Used in heat exchangers, piping, and tanks handling corrosive chemicals.
Marine & Offshore Engineering: Ideal for seawater-exposed components, offshore platforms, and marine exhaust systems.
Oil & Gas Industry: Applied in downhole equipment, tubing, and pipelines exposed to aggressive environments.
Aerospace Industry: Found in jet engines, exhaust ducts, and high-temperature components.
Power Generation: Used in nuclear fuel reprocessing, acid production plants, and other high-temperature applications.
Manufacturing Process of Incoloy 825 Hexagonal Bars
Raw Material Selection: High-quality raw materials are chosen for optimal performance.
Melting & Refining: The alloy is melted in vacuum induction furnaces to ensure uniformity.
Hot Rolling & Cold Drawing: The bars are shaped into hexagonal profiles with precise dimensions.
Heat Treatment: Annealing enhances mechanical properties and corrosion resistance.
Surface Finishing: Includes pickling, polishing, and passivation for a smooth surface finish.
Quality Testing: Each batch undergoes rigorous mechanical and chemical testing to meet ASTM B425 and other industry standards.
FAQs:
Q1: What are Incoloy 825 hexagonal bars used for?
A: Incoloy 825 hexagonal bars are commonly used to manufacture fasteners, shafts, fittings, valve components, pump parts, and structural elements for chemical, marine, and oil & gas industries.
Q2: What makes Incoloy 825 resistant to corrosion?
A: The alloy contains nickel, chromium, molybdenum, and copper, which provide excellent resistance to oxidizing and reducing acids, pitting corrosion, crevice corrosion, and stress corrosion cracking.
Q3: Are Incoloy 825 hex bars suitable for marine environments?
A: Yes. Incoloy 825 offers excellent resistance to seawater corrosion and chloride-induced attack, making it ideal for marine and offshore applications.
Q4: Can Incoloy 825 hexagonal bars be welded?
A: Yes. The alloy can be welded using standard welding methods designed for nickel-based alloys while maintaining its corrosion-resistant properties.
Q5: What sizes are available?
A: We supply Incoloy 825 hexagonal bars in a wide range of diameters and lengths. Custom dimensions can be manufactured according to customer specifications.
