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AssigneeKawasaki Steel Corporation
InventorsTakeshi Yokota, Misako Tochihara, Susumu Satoh, Sadao Hasuno
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The present invention provides a stainless steel having superior corrosion resistance, antibacterial properties, and durability, the antibacterial properties being maintained after surface treatments commonly performed including, for example, polishing. In particular, the stainless steel contains not less than 10 percent by weight of chromium, 0.001 to 0.30 percent by weight of silver, or further contains 0.001 to 1.0 percent by weight of vanadium. In addition, not less than 0.0005 weight percent of a silver oxide, the amount thereof being not more than 1.1 times that of the silver, is dispersed in the stainless steel. In order to homogeneously disperse the silver oxide in the stainless steel, when continuous casting of molten steel is performed, the casting rate for the continuous casting is preferably 0.8 to 1.6 m/min. A method for manufacturing the stainless steel is also disclosed.
A stainless steel having antibacterial properties, comprising:
A method for manufacturing a stainless steel raw material having antibacterial properties, comprising the steps of:
A stainless steel selected from the group consisting of austenitic, ferritic and martinsitic stainless steel, said stainless steel having antibacterial properties comprising:
Dependencies are inferred from the claim text.