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Electropolishing For 2205 Duplex Stainless Steel

Electropolishing For 2205 Duplex Stainless Steel

SAF 2205, also known as Sandvik SAF 2205, is a Sandvik-owned trademark for a 22Cr duplex. Duplex 2205 is a two-phase, ferritic, austenitic 22% chromium, 3% molybdenum, 5 to 6% nickel alloyed stainless steel. The reason why this metal works well by being electropolished is because it chemically removes parties at a microscopic level, making the steel impervious to rusting over time, since it transforms it into a pure metal.

Looking for reliable passivation or electropolishing service for your 2205 Duplex Stainless Steel surfaces, pieces and
parts? Celco Inc has been setting the world standard since 1986 for a wide range of chemical cleaning for metals.

Contact us with questions or call (620) 842-3701

Duplex 2205 Stainless Steel, austenitic and ferritic, is used in applications that require strength and good corrosion resistance. S31803 was endorsed in year 1996 whereas it underwent number of changes that led to discovery of UNS S32205 which is more widely used. Possible alternatives for SAF 2205 are 904L Stainless Steel, UR52N+, 6%Mo and 316L.

We Do Electropolishing & Passivation on 2205 For The Following Industries

  • Transport, storage and chemical processing
  • Processing equipment
  • High chloride and marine environments
  • Oil and gas exploration
  • Paper machines, liquor tanks, pulp and paper digesters

Celco’s Youtube Electropolishing Video

Benefits Of Our Electropolishing Process

The greatest benefits of this advanced finishing method include:

  • Removing microscopic burrs and leveling on the surface of machined parts.
  • Leveling the peaks and valleys that are common on metal surfaces.
  • Creating a smooth surface to reduce friction and drag.
  • Relieving stress on the surface of the component.
  • Leaving a bright, mirror-like finish on most metal alloys.
  • Providing a more easily sterilized surface.

View Some Of Our Electropolishing Work

You can see pictures of our work on some 2205 Duplex steel parts and others using the electropolishing process below and to view our whole image gallery click here.


If you are not sure if the stainless steel you need treated is 2205 Duplex or some other type, please call us. Contact us with questions or call (620) 842-3701


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