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25 février 2011 5 25 /02 /février /2011 12:02

Type 316 stainless is used on the exterior of both the Petronas Twin Towers and the Jin Mao Building, two of the world's tallest skyscrapers.

http://upload.wikimedia.org/wikipedia/commons/7/7f/316L_Stainless_Steel_Unpolished.jpg


http://www.stainless-steel-world.net/pdf/sswNNB_duplex_padova.pdf?resourceId=105

  • No. 0: Hot rolled, annealed, thicker plates
  • No. 1: Hot rolled, annealed and passivated
  • No. 2D: Cold rolled, annealed, pickled and passivated
  • No. 2B: Same as above with additional pass-through highly polished rollers
  • No. 2BA: Bright annealed (BA or 2R) same as above then bright annealed under oxygen-free atmospheric condition
  • No. 3: Coarse abrasive finish applied mechanically
  • No. 4: Brushed finish
  • No. 5: Satin finish
  • No. 6: Matte finish
  • No. 7: Reflective finish
  • No. 8: Mirror finish
  • No. 9: Bead blast finish
  • No. 10: Heat colored finish-wide range of electropolished and heat colored surfaces

 

Duplex Stainless Steel

Duplex stainless steels are called “duplex” because they have a two-phase microstructure consisting of grains of ferritic and austenitic stainless steel.

http://www.imoa.info/_files/images/fig_duplex.gif

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