This is in stark contrast to iron oxide (red rust) that forms on plain carbon steel products. The reason for the stain-less nature of stainless steel is due to the formation of a thin, adherent and passive (nonreactive) film of nickel & chromium oxides that forms a barrier to prevent further surface corrosion of the product. In general, stainless steel is broken down into three main groups based upon the alloying elements and compositions as follows: 1) Austenitic Grades (all 200 & 300-series), 2) Ferritic Grades (part of the 400-series, low carbon alloys) and 3) Martensitic Grades (part of the 400-series, higher carbon alloys). Many alloys of stainless steel include substantial nickel to further enhance the corrosion resistance. Stainless steel or corrosion-resistant steel (CRES) is defined as a steel alloy with a minimum of 11% chromium content by weight. Passivation of Stainless Steel Properties APT provides passivation across various sectors including the medical, dental, aerospace, power transmission/distribution, heavy equipment and petrol chemical industries.
APT provides both competitive high-volume commercial stainless steel passivation as well as precision medical passivation of titanium and other medical-grade alloys including cobalt chromium, MP35N and 316LVM, utilizing ultrasonic systems for demanding applications within the medical and dental industries. Advanced Plating Technologies, a Milwaukee, Wisconsin company, is an industry leading provider of passivation of stainless steel to ASTM A967, AMS 2700 and QQ-P-35 specifications, employing both citric and nitric acid methods. Passivation of stainless steel is a process that removes free iron from the surface of a stainless component and at the same time promotes the formation of a thin, dense oxide protective barrier. Passivation of Stainless Steel – ASTM A967, AMS 2700 & QQ-P-35 Submit a Quote Request or Sales Inquiry.Selective Plating Services (Electroplating and Electroless Plating).Plate to Gauge or Plate to Dimension Services.Copper Plating of Bullets and Projectiles.Black Nickel Plating (Electrolytic) Services.Electroless Nickel Plating Process vs Electrolytic Nickel Plating Process.
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