Incoloy 825 / Alloy 825 / 2.4858 / KhN40MDTYu
Incoloy 825 is distinguished by a complex structural composition dominated by nickel, chromium and iron. Grade 825 alloys are characterized by high resistance to corrosion in high concentration acidic environments and local corrosion, which provokes damage to the grain, causing a decrease in ductility and strength.
The steel grader classifies the material as a super alloy, confirming its high performance properties. They are provided by an optimal combination of different metals that make up the steel, where:
– Nickel prevents cracking, being resistant to ion-chloride destruction.
– Chromium provides resistance to oxidizing agents, including nitrate and nitrate ones.
– Molybdenum resists crevice electrical corrosion.
– Titanium prevents intergranular corrosion damage.
– Nickel, copper and molybdenum also contribute to resistance to sulfuric and phosphoric acid.
Incoloy 825 alloys are in high demand in the production of equipment for the oil, gas, chemical, and oil refining industries.
Alloy 825 chemistry
Mechanical properties of the alloy Incoloy 825
Yield strength (0.2% deviation)