INCOLOY 825 is a nickel-iron-chromium alloy with additions of molybdenum, copper, and titanium. Its chemical composition and material characteristics contribute to its excellent corrosion resistance, high-temperature strength, and mechanical properties. Here's a detailed overview:

Chemical Composition:

1. Nickel (Ni): 38.0-46.0%
2. Iron (Fe): 22.0% min
3. Chromium (Cr): 19.5-23.5%
4. Molybdenum (Mo): 2.5-3.5%
5. Copper (Cu): 1.5-3.0%
6. Titanium (Ti): 0.6-1.2%
7. Manganese (Mn): 1.0% max
8. Carbon (C): 0.05% max
9. Sulfur (S): 0.03% max
10. Silicon (Si): 0.5% max

Material Characteristics:

1. Corrosion Resistance: INCOLOY 825 offers exceptional resistance to both oxidizing and reducing environments, including sulfuric acid, phosphoric acid, nitric acid, hydrochloric acid, and various chloride-containing solutions. Its high nickel content and alloying elements such as chromium, molybdenum, and copper contribute to its corrosion resistance.

2. High-Temperature Strength: The combination of nickel, chromium, and molybdenum provides INCOLOY 825 with significant strength and oxidation resistance at elevated temperatures. This makes it suitable for applications in high-temperature environments such as heat exchangers, furnace components, and petrochemical processing equipment.

3. Mechanical Properties: INCOLOY 825 exhibits excellent mechanical properties, including high tensile strength, yield strength, and elongation. Its mechanical properties are retained over a wide temperature range, making it suitable for both ambient and elevated temperature applications.

4. Weldability: INCOLOY 825 is readily weldable using conventional welding techniques such as gas tungsten arc welding (GTAW), gas metal arc welding (GMAW), and shielded metal arc welding (SMAW). It exhibits good weldability without the risk of intergranular corrosion or sensitization.

5. Fabrication Ease: The material characteristics of INCOLOY 825 allow for easy fabrication and forming processes, including machining, forging, stamping, and cold working. This enables the production of complex components and equipment with precise dimensions and tolerances.

6. Resistance to Environmental Cracking: INCOLOY 825 demonstrates resistance to various forms of environmental cracking, including stress corrosion cracking (SCC), pitting corrosion, and crevice corrosion. This makes it suitable for use in aggressive environments encountered in chemical processing, marine, and oil and gas industries.

In summary, INCOLOY 825's chemical composition and material characteristics make it a versatile alloy suitable for a wide range of applications requiring exceptional corrosion resistance, high-temperature strength, mechanical properties, weldability, and resistance to environmental cracking. Its performance in aggressive environments and ease of fabrication make it a preferred material for critical components in chemical processing, oil and gas, marine, and other industries.

Shaanxi Qianyi Tuoda Technology Co., Ltd;
Email:qy002@sxqytd.com;WhatsApp +8618829679311
ASTM B161 | ASTM B162 | ASTM B163 | ASTM B164 | ASTM B165 | ASTM B166 | ASTM B168 | ASTM B407 | ASTM B408 | ASTM B423 | ASTM B424 | ASTM B425 | ASTM B434 | ASTM B435 | ASTM B443

INCONEL600|INCONEL601|INCONEL625|INCONEL718|INCONELX-750|INCOLOY A-286|NIMONIC 75|NIMONIC 80A|NICKEL 200|NICKEL 201|MONEL 400|MONEL K-500|INCONEL 690|INCOLOY 800|INCOLOY 800H|INCOLOY 800HT|INCOLOY 825|HASTELLOY C-276|