Iron nickel based alloy (Ni 38-46%) with added molybdenum, copper (1.5-3.0%), and titanium stabilization elements.
Performance
Has strong resistance to reducing acids such as sulfuric acid and phosphoric acid; Extremely stable in mixed acidic media containing hydrogen fluoride, chloride ions, and hydrogen sulfide.
Applications
Reductive Acid Star: The addition of copper element makes its corrosion resistance far superior to conventional stainless steel and 625 alloy in sulfuric acid and phosphoric acid environments.
Stress corrosion resistance and pitting corrosion: It can effectively prevent stress corrosion cracking and localized corrosion in complex acidic media such as oil and gas extraction (such as oil well pipes, valves), acid washing equipment, and offshore platforms.
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