N08825/Incoloy Alloy 825/NS142/NiCr21Mo/2.4858/NCF 825 Incoloy Alloy Bar For

Product Specification

N08825/Incoloy Alloy 825/NS142/NiCr21Mo/2.4858/NCF 825 Incoloy Alloy Bar For Power Generation

Incoloy 825 (N08825, 2.4858, NiCr21Mo) is a nickel-iron-chromium alloy with added molybdenum, copper, and titanium, offering excellent corrosion resistance in harsh environments. It is highly resistant to oxidizing and reducing acids, pitting, crevice corrosion, and stress corrosion cracking. Commonly used in chemical processing, marine, and nuclear industries, Incoloy 825 maintains strength and stability in extreme temperatures up to 540°C (1000°F). It is also weldable and easy to fabricate. The alloy’s high nickel content ensures resistance to chloride-induced stress corrosion cracking, while molybdenum enhances its protection against localized corrosion. Available in bars, rods, and other forms, Incoloy 825 is widely used in heat exchangers, piping, and marine applications requiring superior corrosion resistance.

Trade Code

Incoloy 825 (N08825 / NS142 / NiCr21Mo / 2.4858 / NCF 825) is a nickel-iron-chromium alloy with significant additions of molybdenum, copper, and titanium. It is designed for excellent corrosion resistance, particularly in aggressive environments.

Key Features of Incoloy 825 Bar:

• Excellent Corrosion Resistance

Resistant to general corrosion, pitting, and crevice corrosion in both oxidizing and reducing environments.

Excellent resistance to sulfuric and phosphoric acids.

Performs well in chloride-containing environments, preventing stress corrosion cracking.

• High-Temperature Strength

Maintains mechanical strength at elevated temperatures up to around 540°C (1000°F).

Suitable for applications in heat exchangers, chemical processing, and nuclear fuel reprocessing.

• Good Mechanical Properties

High tensile strength and toughness.

Maintains ductility and impact resistance even in harsh conditions.

• Weldability & Fabrication

Easily welded using standard welding techniques (GTAW, GMAW, SMAW).

Can be hot and cold worked without significant loss of properties.

• Chemical Composition Balance

Nickel (38-46%) ensures corrosion resistance and enhances stress corrosion cracking resistance.

Chromium (~19.5-23.5%) improves oxidation and pitting resistance.

Molybdenum (~2.5-3.5%) and Copper (~1.5-3%) enhance resistance to reducing acids.

Titanium (0.6-1.2%) stabilizes the alloy against sensitization.

Incoloy Alloy 825 (also known as N08825, NS142, NiCr21Mo, 2.4858, and NCF 825) is a nickel-iron-chromium alloy with significant additions of molybdenum, copper, and titanium. It offers excellent resistance to corrosion, oxidation, and high-temperature environments, making it ideal for a variety of industrial applications.

Applications of Incoloy 825 Bar:

1. Chemical Processing Industry

• Used in sulfuric, phosphoric, and nitric acid environments
• Heat exchangers, evaporators, and chemical storage tanks
• Piping and reactor vessels in corrosive environments

2. Marine and Offshore Engineering

• Seawater-cooled heat exchangers and piping
• Subsea equipment exposed to harsh saltwater conditions
• Marine exhaust systems and desalination plants

3. Oil & Gas Industry

• Downhole and wellhead components
• Gas processing and sour gas handling equipment
• Heat exchangers in offshore drilling operations

4. Power Generation

• Nuclear waste handling and storage
• Heat recovery steam generators (HRSGs)
• Superheater and reheater tubing

5. Aerospace and Defense

• Jet engine components exposed to high temperatures
• Heat exchangers and fuel system components
• Exhaust ducts and afterburner parts

6. Pollution Control & Environmental Protection

• Scrubbers and piping for flue gas desulfurization (FGD) systems
• Waste treatment equipment exposed to acidic and corrosive environments
• Stack liners and chimney flue components

7. Food Processing and Pharmaceuticals

• Heat exchangers and storage tanks for acidic food products
• Sterilization and processing equipment requiring corrosion resistance