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Monel-R 405

MONEL R 405 is a Nickel-Copper alloy that is resistant to salt and caustic solutions, as well as sea water and steam at high temperatures.

MONEL R405 is a nickel-copper alloy that resists corrosion in a wide range of environments. MONEL R405 is known for its moderate to high strength and good overall corrosion resistance. MONEL R405 has a wide range of uses. It can withstand brackish or seawater running at a high rate.

When hydrochloric and hydrofluoric acids are de-aerated, it is extremely resistant to them. At room temperature, MONEL R405 is somewhat magnetic. The chemical, oil, and marine sectors employ MONEL R405 extensively.

Chemical Requirements :

- Ni Cu Fe S Mn C Si
Max - 34.0 2.5 0.060 2.0 0.3 0.5
Min 63.0 28.0 0.025

Mechanical Property :

Ultimate Tensile Yield Strength (0.2% OS) Elong. in 2 in. or 50mm or 4D, min., % R/A Hardness
Cold Worked/SR
Min 85 KSi 50 KSi 15
Min 585 MPa 345 KPa
Hot Worked/SR
Min 75 KSi 35 KSi 30
Min 517 MPa 241 MPa


  • 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.
Work Process

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