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MST Edelstahlrohr GmbH MST Edelstahlrohr GmbH
    • Basket
    • Log in
      • Shop
      • Products
        • Instrumentation tubes
          Hydraulic tubes
          High pressure tubes
          Cleaned tubes
          High temperature tubes
          Coiled tubes
          Pre insulated tubes
          Multi core tubes
          Control line tubes
          Capillary tubes
          Chromatography tubes
      • About us
        • About MST Edelstahlrohr
          Our history
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      • Industries
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          Merinox B.V.
          Merinox Ltd

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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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