PASSIVATION

Passivation of all grades of Stainless Steel is what imparts the material with its well-known corrosion resistance. We process all grades of Stainless to MIL, ASTM, and AMS specifications.

  • FERRITIC AND MARTENSITIC STAINLESS STEEL 400 SERIES, FREE MACHINING 300 SERIES – NITRIC 1
  • AUSTENITIC 300 SERIES – NITRIC 2
  • Nitric 1: 20 - 25% Nitric Acid, 2.5% Sodium Dichromate, 49 – 54 °C
  • Nitric 2: 20 - 45% Nitric Acid, 21 – 32 °C
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