Nickel Alloy 400 Capillary Tubes Wst. 2.4360 UNS N04400:-

Specification:  ASTM A 213/ASME SA 213
EN 10216-5/EN 10305/ISO 15156-3
NACE MR0175/PED 97/23 EC
Maximum service temperature: 430°C / 800°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 wide used in marine applications and other nox-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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