Alloy 20

Alloy 20 UNS N08020 is a nickel alloy used in power generation, food processing and pharmaceutical applications for its resistance to sulfuric acid.

We supply to ASTM B473 N08020 A (annealed condition) and all our material is of European origin.  Werkstoffe number is 2.4660.

Our stock range extends from 1/2” (25.4 mm) dia to 5” (127 mm) dia round bar.

Fully certified material, additional testing available

UK, US and European origin unless otherwise stated

Same day quote, next day dispatch

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Alloy 20 Chemical Properties

 NiCrMoFeCuCb/Nb + TaMnSiPSC-
Min32.0019.002.00Bal3.008 x C%-----%

Alloy 20 Mechanical Data

Tensile StrengthYield Strength (0.2% offset) minElongation in 2" or 4DReduction in Area
KSI minMPa minKSI minMPa min% min%

For more technical information download our Alloy 20 information sheet here


This alloy is a popular choice for a wide variety of industrial applications, including chemical and food processing, pharmaceuticals, solvents and explosives manufacture.

End uses include:

  • heat exchangers
  • mixing tanks
  • metal cleaning
  • process piping and pickling equipment
  • valves
  • manufacture of rubber and plastics
  • SO2 scrubbers

“Our philosophy: customer service first, second & third – quick response to requests for quote, same day / next day service on UK deliveries, long term relationships, and generally making the extra effort – all to earn our motto of “Global Reach, Personal Touch”

Mike Andrews

Proud associates