Nickel Alloy Monel 400

General Characteristics

Alloy 400 is MONEL nickel-copper is a solid-solution alloy that can be hardened only by cold working. It has high strength and toughness over a wide temperature range and excellent resistance to many corrosive environments. Alloy 400 is widely used in many fields, especially marine and chemical processing. Typical applications are valves and pumps; pump and propeller shafts; marine fixtures and fasteners; electrical and electronic components; springs; chemical processing equipment; gasoline and fresh water tanks; crude petroleum stills, process vessels and piping; boiler feed-water heaters and other heat exchangers; and deaerating heaters.

Typical Chemical Composition

Physical Properties

^{(*)            These values also apply to MONEL alloy R-405, the free-machining version of MONEL alloy 400.} 

^{(**)           Annealed material.}

Mechanical Properties

Specifications

• AMS – 4730, 4731, QQ-N-281
• ASTM – B164
• ASME – SB164