Products

Monel 400 - 2.4360

Wst. 2.4360

UNS N04400

Trademarks: Monel 400

Stock program: 3 – 25 mm OD / 1/16” – 1.1/2” OD

Specification: ASTM B 163/ASME SB 163 / ASTM B 165/ASME SB 165 / EN 10216-5/EN ISO 1127 / NACE MR0175/PED 97/23 EC

Maximum expose temperature: 425°C / 772°F


Alloy 400 is a nickel-copper alloy (approx. 67% Ni – 23% Cu) that is resistant to seawater and steam at high temperatures as well as to salt and caustic solutions. It is a solid-solution alloy that can be hardened only by cold working. It’s widely used in marine applications and other non-oxidizing chloride solutions. This nickel alloy is particularly resistant to hydrochloric and hydrofluoric acids when they are de-aerated. As would be expected from its high copper content, alloy 400 is rapidly attacked by nitric acid and ammonia systems.


Characteristics

  • Resistance to seawater and steam at high temperatures
  • Excellent resistance to many corrosive environments
  • High strength and toughness over a wide temperature range
  • Particularly resistant to stress corrosion cracking
  • High resistance to alkalis and alkaline salt

Market applications:

  • Marine engineering
  • Chemical and hydrocarbon processing equipment
  • Steam generators
  • Heat exchanges
  • Control lines

Technical details

Technical composition (%) Fe Ni Mn Cu Si C S
400 min   -   63   -   28   -   -   -
  max   2.5   70   2.0   40   0.5   0.3   0.024
Mechanical properties 400
Tensile strenght (mpa, min)   480
Yield strength (0.2% offset mpa, min)   195
Elongation (%, min)   40
Density / weight (g / cm3 / kg)   8.83

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