Monel 400 (UNS N04400 )

*Similar Grade

*Product Forms

Pipe, Tube, Sheet, Strip, Plate, Round Bar, Flat Bar, Forgings, Hexagon, Wire

*Brief

Monel 400 is a single phase, solid-solution nickel-copper alloy that offers superior resistance to many corrosive environments over temperatures ranging from sub-zero to 800°F. This alloy is only hardenable through cold working, rather than heat treatment. The Curie Temperature of this alloy lies in the ambient temperature range and is affected by variations in the alloy’s chemical composition. Caution is advised in applications where strong nonmagnetic characteristics are desired. The ratio of copper to nickel in Monel 400 is almost identical to that found in the ore the metal is derived from. This alloy was first patented over 100 years ago, and it continues to be one of the most commonly used corrosion resistant alloys commercially produced.

*Chemical Composition,%

*Typical Physical & Mechanical Property(Annealed)

*Specification

*Feature

1. Resistant to seawater and steam at high temperatures

2. Excellent resistance to rapidly flowing brackish water or seawater

3. Excellent resistance to stress corrosion cracking in most freshwaters

4. Particularly resistant to hydrochloric and hydrofluoric acids when they are de-aerated

5. Offers some resistance to hydrochloric and sulfuric acids at modest temperatures and concentrations, but is seldom the     material of choice for these acids

6. Excellent resistance to neutral and alkaline salt

7. Resistance to chloride induced stress corrosion cracking

8. Good mechanical properties from sub-zero temperatures up to 1020°F

9. High resistance to alkalis

*Application

1. Marine engineering

2. Chemical and hydrocarbon processing equipment

3. Gasoline and freshwater tanks

4. Crude petroleum stills

5. De-aerating heaters

6. Boiler feed water heaters and other heat exchangers

7. Valves, pumps, shafts, fittings, and fasteners

8. Industrial heat exchangers

9. Chlorinated solvents

10. Crude oil distillation towers