Key for plating codes

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1 Key for plating codes Zinc plating, and Hot dip galvanizing Substrate Zinc process Passivation Sealer Fe = iron Zn 1 = optional Zn 2,Zn 3,Zn 5, Zn 6,Zn 7 A 1 = blue ( SC1 ) D 1 = optional (transparent) Zn = zamac Zn 2 = alkaline cyanide free A 2 = yellow ( SC1 ) Zn 3 =acid A 3 = black ( SC1 ) Zn 4 =zinc flakes A 4 = thick film iridescent 5 Zn 5 = zinc/iron alloy A 5 = blue ( SC3 ) Zn 6 = zinc/nickel alloy A 6 = yellow ( SC3 ) Topcoat Zn 7 = cyanide A 7 =black ( SC3 ) D 20 = silver Zn 10 = hot dip galvanizing A 9 = yellow ( SC5 ) A 10 =black ( SC5 ) Note: SC1 = Service Condition 1, SC3 = Service Condition 3, SC5 = Service Condtion 5 Nickel plating / Chrome plating Thickness of Cr min 0,1µm max 0,6µm Substrate Cu Coating Ni Coating Cr Coating Posttreatment Fe = iron Cu 1 = optional Ni 1 = bright nickel Cr 1 = optional bright chromium G 1 = corrosion inhibitor for Fe,optional Zn = zamac Cu 2 = acid copper Ni 2 = semibright nickel Cu = copper Cu 3 = cyanide copper Ni 3 = satin nickel CuZn =brass Ni 4 =black nickel

2 Powder coating Substrate Pretreatment Powder quality Fe = Iron E 1 = iron phosphate 0,5g/m2 L 1 = epoxy Zn = Zinc E 2 = zinc phosphate 1,0g/m2 L 2 = mix epoxy-polyester Al = Aluminium E 3 = zinc-manganeese 1,0g/m2 L 3 = polyester Electrodip lacquer Substrate Pretreatment ED-lacquer Fe = Iron E 1 = iron phosphate 0,5g/m2 M 1 = optional Zn = Zinc E 2 = zinc phosphate 1,0g/m2 Al = Aluminium E 3 = zinc-manganeese 1,0g/m2 Liquid lacquer Substrate Pretreatment Liquid lacquer Fe = Iron E 1 = iron phosphate 0,5g/m2 T 1 = optional Zn = Zinc E 2 = zinc phosphate 1,0g/m2 Al = Aluminium E 3 = zinc-manganeese 1,0g/m2 Anodizing Substrate Anodizing (Al) Al = Aluminum Al 1 = Nature anodizing

3 Brass plating Substrate Cu coating Ni coating Brass coating Fe = iron Cu 1 = optional Ni 1 = bright nickel CuZn 1 = optional Zn = zamac Cu 2 = acid copper Ni 2 = semibright nickel Al = aluminium Cu 3 = cyanide copper Ni 3 = satin nickel Cu = copper Antique treatment Substrate Metal coating Antique appearance Fe = iron Cu 1 = copper plating optional An 1 = antique dark Zn = zamac Sn 1 = tin plating optional An 2 = antique brass Al = aluminium CuSn 1 = bronze plating optional An 3 = antique copper CuZn = brass CuZn 1 = brass plating optional An 4 = antique grey Ni 2 = semibright Nickel Ni 1 = bright nickel Zn 1 = zinc plating optional

4 Explanation how a plating code is built-up. Plating code for zincplating on iron. Fe / Zn 1 5 A 3 D 1 Symbols and number indicate the type of sealer Symbols and number indicate the type of passivate: A 3 = Black Passivation for Service Condition 1. Number that indicate the minimum thickness, in μ, of zinc coating. Type of zinc process (e.g. alkaline zinc, acid zinc) The chemical symbol for Zinc, Zn The chemical symbol for the basis material: Fe (iron or steel), followed by an oblique stroke. Fe/

5 Plating code for Ni/ Cr plating on iron. Fe / Ni 1 15 Cr 2 Type of Chrome process (e.g Cr3+, sulphate type, cloride type) The chemical symbol for Chrome, Cr Number that indicate the minimum thickness on the measure point, in μ, of Ni coating. The chemical symbol for Nickel, Ni Type of Ni-process ( e.g Bright Nickel, Satinnickel) The chemical symbol for the basis material: Fe (iron or steel), followed by an oblique stroke. Fe/

6 Plating code for Cu/ Ni plating on iron. Fe / Cu 1 3 Ni 1 3 (8) Number that indicate the minimum total thickness on the measure point, in µ, of the Cu and Ni coating. If the Ni-layer is 3µm then the Cu-layer must at least be 5µm. Number that indicate the minimum thickness on the measure point, in μ, of Ni coating. Type of Ni-process The chemical symbol for the basis material: Fe (iron or steel), followed by an oblique stroke. Fe/ The chemical symbol for Nickel, Ni Number that indicate the minimum thickness on the measure point, in μ, of Cu coating. Type of Cu-process. The chemical symbol for Copper, Cu

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