Stainless steel combines desirable mechanical properties with proven corrosion resistance. Stainless steel mechanical polishing is often chosen for applications within harsh environments. Published data is available to verify the performance of specific alloys within specific environments. Despite being used within appropriate environments, stainless steels may and do fail by corrosion.
All stainless steels are iron-based alloys (minimum 50% iron) and have at least 10.5% chromium. The chromium content is the key to stainless steel's basic corrosion resistance. When the chromium is exposed to oxygen, it spontaneously forms a passive oxide layer. This passive oxide layer is very thin, yet it prevents further diffusion of oxygen into the base material and thus prevents corrosion. Stainless steel electropolishing can be used to improve the corrosion resistance of stainless steel by enhancing the thickness and the properties of this passive oxide film. Further details can be found in our discussion of electropolishing stainless steel and other metals.
The corrosion resistance of stainless steel may also be improved by passivating the surface.
Harrison Electropolishing can mechanically polish stainless steels and certify a finish as low as 4 Ra micro-inch.
Harrison Electropolishing can oxygen clean and chemical clean a wide range of stainless steel components.
Contact us to explore our range of services for your stainless steel components.
INDUSTRY STANDARDS
ASTM B912
ASME BPW
ASTM A967
ASTM A380
QQ-P-35C
NiDi No. 9012
SAE AMS 2700E
