ALLOY 400 is a single-phase solid solution nickel-copper alloy with excellent corrosion resistance in a wide range of media. 

• Corrosion resistant in a wide range of marine and chemical environments 
• Not susceptible to chloride stress corrosion cracking. 
• Good mechanical properties from freezing to approximately 550°C (1020°F) •Approved for pressure vessels with wall temperatures of –10 to 425°C (14 to 800°F) as specified by VdTÜV-Werkstoffblatt (Material Data Sheet) 263 and up to 900°F (480°C) as specified by ASME Boiler and Pressure Vessel Code 
• Good fabricability and weldability