Monel R-405 Suppliers - Nickel Alloy R405 , UNS N04405

MONEL r405 is a nickel-copper alloy with excellent corrosion resistance in a wide variety of media.

Material r-405 is characterized by good general corrosion resistance and moderate to high strength. It has excellent resistance to rapidly flowing brackish water or seawater. This material is particularly resistant to hydrochloric and hydrofluoric acids when they are de-aerated. Nickel Alloy R405 is slightly magnetic at room temperature. Monel R405 Alloy is widely used in the chemical, oil and marine industries.

 

Characteristics of Monel R405 

• Corrosion resistance in an extensive range of marine and chemical environments. From pure water to nonoxidizing mineral acids, salts and alkalis.
• MONEL R405 is more resistant to nickel under reducing conditions and more resistant than copper under oxidizing conditions, it does show however better resistance to reducing media than oxidizing.
• Good mechanical properties from subzero temperatures up to about 480C.
• Good resistance to sulfuric and hydrofluoric acids. Aeration however will result in increased corrosion rates. May be used to handle hydrochloric acid, but the presence of oxidizing salts will greatly accelerate corrosive attack.
• Resistance to neutral, alkaline and acid salts is shown, but poor resistance is found with oxidizing acid salts such as ferric chloride.
• Excellent resistance to chloride ion stress corrosion cracking.

*Due to sulfur addition for free machining, welding is not possible for MONEL R405.
 

Chemical Requirements of Nickel Alloy R405  

Mechanical Properties of Monel R-405 

Similar Specifications and Standards of Nickel Alloy N04405 

• AMS 4674
• ASTM B164 CLASS B
• ASTM F467
• ASTM F468
• QQ N281

Fabrication and Heat treatment of Monel Alloy R405 

Machinability

Monel(r) R-405 has good machinability.

Forming

Monel(r) R-405 has excellent formability.

Welding

Monel(r) R-405 can be welded using standard welding techniques.

Heat Treatment

Monel(r) R-405 does not react to heat treatment.

Forging

Forging of Monel(r) R-405 is not recommended due to the presence of the intentional sulfur content.

Hot Working

Monel(r) R-405 should not be hot worked.

Cold Working

Monel(r) R-405 can be easily cold worked.

Annealing

Monel(r) R-405 is annealed at 927°C (1700°F) followed by air cooling.

Hardening

Monel(r) R-405 can be hardened only by cold working.

Applications of Monel R405 

• Feed water and steam generator tubing.
• Brine heaters, sea water scrubbers in tanker inert gas systems.
• Sulfuric acid and hydrofluoric acid alkylation plants.
• Pickling bat heating coils.
• Heat exchangers in a variety of industries.
• Transfer piping from oil refinery crude columns.
• Plant for the refining of uranium and isotope separation in the production of nuclear fuel.
• Pumps and valves used in the manufacture of perchlorethylene, chlorinated plastics.
• Monoethanolamine (MEA) reboiling tube.
• Cladding for the upper areas of oil refinery crude columns.
• Propeller and pump shafts.
   

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