ENVIRONMENTALLY FRIENDLY STEEL SHEET FOR CONTAINER MATERIAL, PROCESS FOR PRODUCING THE SAME, AND ENVIRONMENTALLY FRIENDLY LAMINATED STEEL SHEET FOR CONTAINER MATERIAL AND PRECOATED STEEL SHEET FOR CONTAINER MATERIAL EACH PRODUCED FROM THAT STEEL SHEET
Laminated steel sheet for a container material with a small environmental load container material and coating pre-coated steel sheet for a container material characterized by comprising steel sheet having on it a tin layer or iron-tin alloy layer which has on it a tin oxide layer of a thickness meas...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | Laminated steel sheet for a container material with a small environmental load container material and coating pre-coated steel sheet for a container material characterized by comprising steel sheet having on it a tin layer or iron-tin alloy layer which has on it a tin oxide layer of a thickness measured by an electric stripping method of 0 mC/cm 2 to 3.5 mC/cm 2 and has further formed on that a foundation layer including a zirconium compound not including fluorine or nitrate nitrogen, having an amount of coating converted to zirconium of 1 mg/m 2 to 30 mg/m 2 , and having an amount of sulfuric acid radicals (SO 4 2- ) of 0 mg/m 2 to 7 mg/m 2 . |
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