Monel400 Nickel-Copper Alloy Plate - Comprehensive Technical Manual

I. Performance characteristics

1. Excellent corrosion resistance

(1) Excellent performance in seawater, acidic media (such as sulfuric acid, hydrofluoric acid) and alkaline environments, with a corrosion rate of less than 0.025mm/a.

(2) Outstanding resistance to stress corrosion cracking, especially suitable for high stress environments containing chlorides.

2. Excellent mechanical properties

(1) Tensile strength ≥450MPa, yield strength ≥170MPa, elongation ≥30%, with both high strength and toughness.

(2) Good thermal stability, wide operating temperature range (-200℃ to 600℃), thermal expansion coefficient of 13.9×10^-6/°C.

3. Good processing performance

(1) Can be formed by cold/hot processing, supports TIG, MIG and other welding processes, but attention should be paid to preheating to avoid thermal cracks.

(2) Cutting processing requires the use of carbide tools and low-speed processes.

II. Main Applications

(1) Marine Engineering

Used for seawater pumps, valves, pipes and ship accessories, resistant to long-term seawater corrosion.

(2) Chemical and Petroleum

Manufacturing reactors, heat exchangers and downhole tools, resistant to corrosive gases such as hydrogen sulfide and carbon dioxide.

(3) Aerospace

Applied to engine components and fuel systems, meeting high strength and high temperature resistance requirements.

(4) Electricity and Nuclear Energy

Ideal material for nuclear power plant steam generator tubes and condensers, combining radiation resistance and high thermal conductivity.