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Product Overview
Introduction To Incoloy 825 / Alloy 825 / UNS N08825
MOKSH TUBES & FITTINGS LLP is a supplier, exporter, importer and stockist of a variety of INCOLOY 825 products such as Pipes & Tubes, Pipe Fittings, Flanges, Fasteners, Sheets & Plates, Coils, Wires, Round Bars, Flat Bars, Angles, Channels, Welding rods, Wire Mesh, and other Custom and Hard to Find INCOLOY 825 Products.
INCOLOY 825 is a nickel iron chromium alloy with additions of molybdenum, copper, and titanium. The alloy offers exceptional resistance to reducing and oxidizing acids, stress corrosion cracking, pitting, and crevice corrosion. Its unique composition makes it highly suitable for aggressive environments, including those containing sulfuric, phosphoric, and nitric acids. Additionally, the titanium stabilization provides resistance to intergranular corrosion after exposure to sensitization temperatures. With excellent mechanical properties across a wide temperature range, INCOLOY 825 is a go to alloy for critical industries where corrosion performance and strength are key.
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INCOLOY® 825 Specifications (UNS N08825)
| Category | Details |
|---|---|
| Grade | INCOLOY® 825 / UNS N08825 |
| Type | Nickel-Iron-Chromium Alloy |
| Typical Chemical Composition | Ni 38–46%, Fe 39.5–45%, Cr 19.5–23.5%, Mo 2.5–3.5%, Cu 1.5–3.0%, C ≤ 0.05%, Mn ≤ 2.0%, Si ≤ 1.0% |
| Conditions | Annealed, Hot Rolled, Cold Drawn, Solution Treated |
| Heat Treatment | Annealing, Stress Relieving, Solution Treatment |
| Testing | Tensile, Hardness, Chemical, Corrosion, NDT on request |
| Certification | EN 10204 3.1 / 3.2 (Mill Test Certificate available) |
Chemical Composition of INCOLOY® 825
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | 38.0 – 46.0 |
| Chromium (Cr) | 19.5 – 23.5 |
| Iron (Fe) | Balance |
| Molybdenum (Mo) | 2.5 – 3.5 |
| Copper (Cu) | 1.5 – 3.0 |
| Titanium (Ti) | 0.6 – 1.2 |
| Manganese (Mn) | 1.0 max |
| Silicon (Si) | 0.5 max |
| Carbon (C) | 0.05 max |
| Aluminum (Al) | 0.2 max |
| Sulfur (S) | 0.03 max |
Technical Composition of INCOLOY® 825
Physical Properties of INCOLOY® 825
| Property | Imperial Units | Metric Units |
|---|---|---|
| Density | 0.294 lb/in³ | 8.14 g/cm³ |
| Melting Range | 2500–2550 °F | 1370–1400 °C |
| Specific Heat | 0.105 Btu/lb·°F | 440 J/kg·°C |
| Curie Temperature | –320 °F | –196 °C |
| Magnetic Permeability | 1.005 | — |
Heat Treatment of INCOLOY® 825
| Heat Treatment Process | Temperature Range | Cooling / Procedure |
|---|---|---|
| Annealing | 1020–1120°C | Air or furnace cool |
| Solution Treatment | 980–1020°C | Water quench |
| Stress Relieving | 620–730°C | Hold 1–2 hours, air cool |
Note: INCOLOY® 825 is typically used in annealed or solution-treated condition for optimum corrosion resistance.
International Standards & Equivalent Grades
| Standard | Equivalent Grade |
|---|---|
| ASTM / ASME | B429, B446 |
| EN | 2.4858 |
| UNS | N08825 |
| DIN | 2.4858 |
| JIS | SNCM 825 |
Products in Incoloy 825
INCOLOY 825 , (UNS N08825 / W.Nr. 2.4858) is a trusted material in the world of corrosion resistant alloys. Known for its excellent performance in aggressive environments—especially those containing acids this nickel iron chromium alloy is commonly found in oil and gas operations, chemical processing, pollution control, and nuclear fuel reprocessing.
This alloy meets several recognized industry standards, including:
Uses and Advantages
Outstanding resistance to sulfuric, phosphoric, nitric, and organic acids
Excellent resistance to pitting, crevice corrosion, and stress corrosion cracking
High mechanical strength and reliable performance under thermal stress
Excellent weldability and formability for ease of fabrication
Suitable for both oxidizing and reducing environments in critical industries
Applications of INCOLOY 825
INCOLOY 825 is extensively used in industries where superior corrosion resistance and mechanical reliability are required. Its ability to resist acidic and chloride laden environments makes it ideal for the following applications:
Chemical Processing Industry
Used in heat exchangers, evaporators, tanks, and piping systems handling acidic and chloride rich fluids.
Pollution Control and Flue Gas Systems
Ideal for scrubbers, stack liners, ducts, and other components exposed to harsh chemical fumes and gases.
Oil & Gas Sector
Used in downhole equipment, piping systems, and components exposed to sour gas and offshore environments.
Marine and Offshore Applications
Perfect for seawater cooling systems, marine exhaust systems, and desalination plants.
Acid Production & StorageAerospace & Defense
Reliable in sulfuric and phosphoric acid environments including piping, tanks, and heat exchangers.
Nuclear and Power Generation
Deployed in nuclear fuel reprocessing, heat exchangers, and high-temperature service components.
Wastewater Treatment
Ideal for systems exposed to acidic waste, chemical cleaning solutions, and aggressive effluents.
INCOLOY 825’s unique combination of corrosion resistance, strength, and workability ensures optimal performance in mission critical applications.
WHY CHOOSE US?
INCOLOY® 825 Price per kg in India
Typical Range: ₹950 – ₹1,500 per kg
(Price varies by product form, size, OD, thickness, and condition)
Contact us for exact quotation based on size and quantity.
FAQ's
What is Incoloy 825 and what makes it unique?
Incoloy 825 (UNS N08825 / W.Nr. 2.4858) is a nickel-iron-chromium alloy with added molybdenum, copper, and titanium, designed for exceptional corrosion resistance in both oxidizing and reducing environments. Its titanium stabilization provides excellent protection against intergranular corrosion after exposure to sensitization temperatures, making it highly reliable in aggressive conditions such as sulfuric, phosphoric, and nitric acids.
What are the key properties of Incoloy 825?
Incoloy 825 is known for its outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking in chloride bearing environments. It offers excellent mechanical strength, high ductility, and reliable performance across a wide temperature range. With superior resistance to sulfuric, phosphoric, and nitric acids, this alloy delivers long term durability in harsh chemical and marine conditions, while also offering excellent weldability and formability.
Where is Incoloy 825 commonly used?
Incoloy 825 is widely used in industries where corrosion resistance and mechanical stability are crucial. Its applications include chemical processing equipment, heat exchangers, evaporators, tanks, and piping systems handling acidic solutions. It is also used in oil and gas exploration, pollution control systems, marine and offshore structures, nuclear fuel reprocessing, power generation, and wastewater treatment plants where aggressive chemical exposure is a concern.
What product forms are available in Incoloy 825?
MOKSH TUBES & FITTINGS LLP manufactures, supplies, and exports Incoloy 825 in a wide range of forms, including seamless and welded pipes, tubes, sheets, plates, coils, bars, wire mesh, welding rods, flanges, fasteners, pipe fittings, and custom fabricated components. Each product conforms to international standards and specifications, ensuring superior quality and reliability for critical service conditions.
Why choose MOKSH TUBES & FITTINGS LLP for Incoloy 825 materials?
MOKSH TUBES & FITTINGS LLP is a trusted global supplier of Incoloy 825 products, offering premium quality materials backed by ISO and ASTM standards. With extensive expertise in nickel alloys, a strong supplier network, and a commitment to timely delivery, the company ensures tailored solutions for diverse industrial needs. Their dedication to quality, dependability, and customer satisfaction makes them the preferred choice for industries requiring high-performance corrosion resistant alloys.
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