High Temperature Corrosion Resistance Incoloy 825 Rod For Chemical Processing

Incoloy 825 Rods: High-Temperature Corrosion Resistance for Chemical Processing

Incoloy 825 rods are high-performance nickel-iron-chromium alloys designed for exceptional resistance to a wide range of corrosive environments. These rods are particularly effective in applications involving sulfuric and phosphoric acids, seawater, and environments prone to stress corrosion cracking. With outstanding weldability and high-temperature stability, Incoloy 825 rods are ideal for industries such as chemical processing, nuclear fuel reprocessing, and pollution control.

Chemical Composition (ASTM B425 / ASME SB425)

Mechanical Properties

Physical Properties

• Density: 8.14 g/cm³

• Melting Range: 1370–1400°C (2500–2550°F)

• Electrical Resistivity: 1.13 µΩ·m at 20°C

• Thermal Conductivity: 12.3 W/m·K at 100°C

• Coefficient of Thermal Expansion: 14.1 µm/m•°C

• Modulus of Elasticity: 196 GPa​

Applications

Incoloy 825 rods are widely used in:​

• Chemical processing industries

• Pollution control equipment

• Oil and gas well piping

• Nuclear fuel reprocessing

• Acid production and pickling equipment

• Handling of radioactive wastes​

Frequently Asked Questions

1. What industries benefit from Incoloy 825 rods?

Incoloy 825 rods are ideal for industries such as chemical processing, pollution control, oil and gas, and nuclear fuel reprocessing due to their exceptional corrosion resistance and high-temperature stability.​

2. How does Incoloy 825 compare to other alloys?

Compared to other alloys, Incoloy 825 offers superior resistance to both reducing and oxidizing acids, stress-corrosion cracking, and localized attacks like pitting and crevice corrosion.​

3. What are the welding considerations for Incoloy 825 rods?

Incoloy 825 rods can be readily welded using shielded metal-arc processes with alloy welding electrode 135, gas shielded arc processes with alloy filler metal 65, and resistance welding processes. No post-weld heat treatment is required, and the corrosion resistance of the deposited weld metal is equivalent to that of the parent metal.​

Standards & Specifications

• UNS: N08825

• W.Nr: 2.4858

• ASTM: B425

• ASME: SB425

• BS: 3076 NA16

• ISO: 15156-3

• NACE: MR0175​

Chemical Processing incoloy 825

Corrosion Resistance incoloy 825

690MPa uns n08825

High Temperature Corrosion Resistance Incoloy 825 Rod For Chemical Processing Images