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Corrosion resistance of UNS Alloy 625 steel

Alloy 625 steel shows excellent corrosion resistance in many media. Excellent resistance to pitting, crevice corrosion, intergranular corrosion and erosion in chloride media.

Alloy 625 steel has good resistance to inorganic acid corrosion, such as nitric acid, phosphoric acid, sulfuric acid, hydrochloric acid, etc. It also has resistance to alkali and organic acid corrosion in oxidizing and reducing environments. Effective resistance to chloride ion reduction stress corrosion cracking. There is almost no corrosion in seawater and industrial gas environments, and alloy 625 steel has high corrosion resistance to seawater and salt solutions, also at high temperatures. No sensitivity during welding.

UNS Alloy 625 steel is resistant to carbonization and oxidation in static or cyclic environments, and resistant to corrosion by chlorine-containing gases.

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