Metal Finishing Guide Book


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548 BCMa BCEd B Nonmetals Titanium ��� BC b a,b b a BE a,b BCb CM B ��� B BC E ��� Cb Cb CbMa Autocatalytic Nickel B BC M B C B BC ��� C C CM Zinc B BC BM ��� BC B BC B BC BC BCM Cadmium B B BM B B B B B B B BM Gold B B BM ��� B B B B B B BM Palladium B B BM ��� B B B B B B BM Rhodium Silver B BC BM ��� BC B BC B BC BCEd BCM Tin B BC BM ��� BC B BC B BC BC BCM Lead B BC BCM BC BC B BC B BC BC BCM B = Beta backscatter; C = Coulometric; E = Eddy current; and M = Magnetic. a Method is sensitive to permeability variations of the coating. b Method is sensitive to variations in the phosphorus content of the coating. c Method is sensitive to alloy composition. d Method is sensitive to conductivity variations of the coating. Reprinted with permission from the ASTM Annual Book of Standards. ASTM B 569. Copyright ASTM, W. Conshocken, PA 19428-2959. BM a M CM M Glass sealing nickelcobalt-iron alloys UNS No. K94610 a C B Silver B BC BMa C B Nickel BMa BCM BC B Aluminum and alloys ��� Ma C Zinc and alloys Magnesium and alloys C CMa C only on brass and Cu-Be Copper and alloys a C CMa CEd Nonmagnetic stainless steels CM CMa CM Magnetic steel (including corrosionresisting steel) Nickel Copper Substrate Chromium Table I. Applicability of Coating Thickness Measuring Methods c c Bc BcCc BCM a Bc BC c Bc B Cc c Bc BcCc BcCc BcCcM TinLead Alloys BE ��� BM BE BE E E BE BE BE BM Nonmetals ��� ��� ��� E ��� ��� E ��� E E M Vitreous and Porcelain Enamels

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