Nickel Alloy 625 Capillary Tubes Wst. 2.4856 UNS N06625 :-

Specification:  ASTM B 444
EN 10216-5/EN ISO 1127
NACE MR0175
Maximum expose temperature: 980°C /1800°F

Alloy 625 is an nickel-chromium-molybdenum alloy with an addiction of niobium used for its high strength, excellent fabric ability and outstanding corrosion resistance. With the addition of molybdenum acts with the niobium to stiffen the alloy matrix, providing a high strength without a strengthening heat-treatment. This combination of chemical elements also is responsible for superior resistance to a wide range of corrosive environments of unusual severity as well as to high-temperature effects such as oxidation and carburization.  

Characteristics:

  •     Excellent strengths and stress-corrosion cracking resistance to chloride ions
  •     Seawater pitting and crevice corrosion resistant
  •     High creep-rupture strength  
  •     High temperature resistance up to  980°C/1800°F
  •     Non magnetic   

Market applications:

  •    Control and instrumentation tubes
  •    Chemical processing 
  •    Oil refineries  
  •    Oil & gas
  •    Aircraft and aerospace
  •    Seawater equipment   

Technical details

Technical composition (%) Fe Cr Ni Mo Mn Si P C S Ti Nb Al
625 min - 20.0 58.0 8.0 - - - - - - 3.15 -
max 5.0 - - 10.0 0.50 0.50 0.015 0.100 0.015 0.40 4.15 0.40


Mechanical Properties 625
Tensile strenght (mpa, min) 827
Yield strength (0.2% offset mpa, min) 414
Elongation (%, min) 30
Density / weight (g / cm3 / kg) 8.44

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