Process for producing chromium-containing steel sheet...

Details Process for producing chromium-containing steel sheet... Process for producing chromium-containing steel sheet...

C - Chemistry, Metallurgy

23

C

117/158, 117/94,

C23C 2/02 (2006.01) C23C 2/12 (2006.01) C23C 28/02 (2006.01)

Patent

CA 2019141

ABSTRACT OF THE DISCLOSURE A method of producing a chromium-containing steel sheet hot- dip plated with aluminum. A steel sheet containing not less than about 3 wt % of chromium is pre-plated at each side thereof with an iron-phosphorous alloy so that a pre-plating layer of the iron- phosphorous alloy about 0.05 to 3.0 µm thick is formed on each side of the steel sheet. The steel sheet is heated and then subjected to an aluminum hot-dip plating by being dipped in a bath of molten aluminum or a molten aluminum alloy. An undercoat nickel plating layer may be formed on the steel sheet in advance of pre-plating with the iron-phosphorous alloy.

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