What is stainless steel?What are their properties?

  These steels have corrosion and heat resistant applications. A 3-digit numbering system that is used to identify them. The last 2 numbers have no special meaning, but the first indicates the group to which it belongs as follows:

  CHARACTERISTICS OF STAINLESS STEEL

  1.Corrosion resistance and high ductility

  2.They have high chromium content

  3.They develop the passivation process

  They are the stainless steels to Chromium-Nickel (3xx series) and Chromium-Nickel-Manganese (2xx series), which are austenitic; They are essentially non-magnetic in annealing condition and do not harden by heat treatment, only by cold deformation. Resistant to impact and corrosion.

  They are mainly steels with only between 11.5 and 18% Chrome. They are magnetic, have good toughness, great resistance to corrosion in the treated state.

  This group of stainless steels with only Chrome have approximately 14 to 27% Chrome. They cannot be hardened by heat treatment, only moderately by cold deformation. They are magnetic and can be worked cold and hot.

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