Skip To Content

Stainless Steel Electropolishing Services

Stainless Steel Electropolishing or also known as chemical polishing is a controlled removal process that imparts a highly reflective finish on stainless steel alloys. This process removes free iron that is embedded into the surface from the manufacturing processes compared to normal passivation processes that can only remove surface contaminants. Electropolishing can also diminish scratches, burrs, sharp edges, heat tint, and oxide scale. During the Electropolishing process the RA ( surface roughness average ) can be reduced up to 50% depending on the material being used. Electropolishing improves the corrosion resistance of the stainless steel creating a ” super passivated surface ” far more superior than just passivation.

Do you have tight tolerances ? CEP can help with this by measuring the RA values before, and after controlling the removal rate to a minimum of .0002 avg.

We can process parts up to 44″L x 33″W x 27″H CEP can process to ASTM B912.

We service many different industries including Water Sanitation, Dairy, Ag, Medical, Aerospace, Power Transmission / Distribution, and Petrol Chemical Industries.

Stainless Steel Electropolishing Capabilities

Chemical Polishing

Removal of Base Material


Stainless Steel
Alloys 202, 302, 316, 317, 347

Plating Characteristics

Rust Resistant
Corrosion Resistant
Appearance Improvement




Testing Ability

Analytical (Baths)
Surface Roughness (RA value )
Ferroxyl Free Iron Testing

Electropolish Length


Electropolish Width


Electropolish Height

27 in

Part Weight

1 to 300 lb.

Additional Services


Production Volume

Prototype to Large Scale Production Volume Runs

Typical Lead Time

2 to 3 Days
Rush Services Available

Additional Information

Industry Focus

Metal Fabrication
Food Industry

Machine Shops
Automotive Suppliers

Intended Application

Sheet Metal


Industry Standards

ASTM A 967-05 Nitric II Passivation
ASTM 912B Electropolish

File Formats