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Incoloy 825 Alloy | Corrosion-Resistance

Material Grade: Incoloy 825 (UNS N08825, W.Nr. 2.4858)

Density: 8.14 g/cm³

Tensile Strength: ≥ 550 MPa

Yield Strength (0.2% offset): ≥ 220 MPa

Elongation: ≥ 30%

Melting Range: 1370–1400°C

Working Temperature Range: Up to 540°C

Standard: ASTM B424 / B564 / B425 / B366

Origin: China

Supply Form: Rod, bar, sheet, plate, pipe, fitting, and customized parts

Product Description

Incoloy 825 Alloy

Incoloy 825 is a nickel-iron-chromium alloy with additions of molybdenum, copper, and titanium, designed to provide exceptional resistance to various forms of corrosion. This alloy performs remarkably well in both oxidizing and reducing environments, making it a reliable choice for chemical processing, marine engineering, and pollution control systems. With excellent mechanical properties and high resistance to stress-corrosion cracking, Incoloy 825 ensures long-term durability in harsh industrial conditions.

Features

  • Outstanding Corrosion Resistance: Excellent performance against sulfuric acid, phosphoric acid, nitric acid, and alkalis.

  • Superior Stress-Corrosion Cracking Resistance: Maintains mechanical integrity even under high stress and corrosive conditions.

  • Good Fabricability and Weldability: Easily formed and welded using conventional processes without compromising corrosion resistance.

  • Stable Mechanical Properties: Retains strength and ductility across a wide temperature range.

  • Excellent Resistance to Oxidation and Pitting: Suitable for chloride-bearing and acidic environments.

Applications

  • Chemical Processing Industry: Used in acid production, heat exchangers, and reaction vessels.

  • Marine Engineering: Ideal for seawater-cooled heat exchangers, pipelines, and offshore platforms.

  • Pollution Control Systems: Resists corrosion in flue gas scrubbers and wastewater treatment equipment.

  • Oil & Gas Industry: Suitable for sour gas service and seawater injection systems.

  • Nuclear Power Plants: Used for fuel reprocessing and waste treatment components.

Advantages

  • Excellent corrosion resistance in both oxidizing and reducing conditions.

  • Long service life with minimal maintenance requirements.

  • High mechanical strength and thermal stability.

  • Excellent resistance to intergranular corrosion and pitting.

  • Trusted material for aggressive industrial environments.

Summary

The Incoloy 825 Alloy combines outstanding corrosion resistance with superior mechanical strength, making it ideal for demanding applications in chemical, marine, and oil industries. Its balanced nickel-iron-chromium composition with molybdenum and copper ensures exceptional durability and reliability in corrosive and high-stress environments.

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