Provided herein is a plated steel sheet having a yield ratio, strength (tensile strength), elongation, hole expansibility, and CTS. A method for producing the plated steel sheet is also provided, among others. A steel sheet of a specific composition is provided that has a micro structure containing 70 to 90% of ferrite, 5 to 20% of martensite, 5% or less of retained austenite, 10% or less of bainite, and 5% or less of perlite by volume. The ferrite has an average crystal grain diameter of 20 m or less. The martensite has an average crystal grain diameter of 5 m or less. The retained austenite has an average crystal grain diameter of 5 m or less. The bainite has an average crystal grain diameter of 7 m or less. The steel sheet has a tensile strength of 590 MPa or more.

Provided is a high strength steel sheet and a manufacturing method therefor, and, more specifically, to a steel sheet and a manufacturing method therefor, the steel sheet having excellent thermal stability to have high yield ratio and high strength even after heat treatment at a relatively low temperature.

Provided is a high strength steel sheet and a manufacturing method therefor, and, more specifically, to a steel sheet and a manufacturing method therefor, the steel sheet having excellent thermal stability to have high yield ratio and high strength even after heat treatment at a relatively low temperature.

A ferritic stainless steel sheet is provided that has a chemical composition consisting of, in mass %, C: 0.001 to 0.020%, Si: 0.02 to 1.50%, Mn: 0.02 to 1.50%, P: 0.01 to 0.05%, S: 0.0001 to 0.01%, Cr: 10.0 to 25.0%, Ti: 0.01 to 0.30%, N: 0.001 to 0.030%, and optional elements, with the balance being Fe and unavoidable impurities, wherein: a grain size number is 6 or more; the ferritic stainless steel sheet satisfies the formulas [A+B12.0/t], [X+Y12.0/(t0.3)] and [(X+Y)(A+B)5.0] with respect to crystal orientation intensities of a ferrite phase obtained by X-ray diffraction; and the sheet thickness is 1.0 mm or more.

A ferritic stainless steel sheet is provided that has a chemical composition consisting of, in mass %, C: 0.001 to 0.020%, Si: 0.02 to 1.50%, Mn: 0.02 to 1.50%, P: 0.01 to 0.05%, S: 0.0001 to 0.01%, Cr: 10.0 to 25.0%, Ti: 0.01 to 0.30%, N: 0.001 to 0.030%, and optional elements, with the balance being Fe and unavoidable impurities, wherein: a grain size number is 6 or more; the ferritic stainless steel sheet satisfies the formulas [A+B12.0/t], [X+Y12.0/(t0.3)] and [(X+Y)(A+B)5.0] with respect to crystal orientation intensities of a ferrite phase obtained by X-ray diffraction; and the sheet thickness is 1.0 mm or more.

A method of preparing and decontaminating a substrate surface to remove contaminants including the steps of applying a first dry or fluid composition having a pH of 4 or less comprising an acidifier and an oxidizer, allowing the first composition to remain on the substrate surface for a predetermined period of time, and rinsing the first composition from the substrate surface with a second composition having a pH of 8 or more comprising an alkaline material liquid mixture formed utilizing activated carbon filtered potable water to achieve a neutral pH condition on the surface, and then applying a nanotubes coating on the surface.

Provided is a faucet fixture to which antifouling functionality is imparted without causing localized corrosion. The present invention is a faucet fixture comprising a metal base material and a plating layer partially formed on the surface of the metal base material. The metal base material contains at least one metal element species selected from the group consisting of copper, zinc, and tin. The plating layer contains at least one metal element species selected from the group consisting of chromium and nickel. An organic layer is further provided on the plating layer, with a passive layer present on the surface of the plating layer being interposed therebetween. The organic layer is bonded to the passive layer via the bonding of a metal element (M), which constitutes the passive layer, and a phosphorus atom (P) in at least one type of group (X) selected from the group consisting of phosphonate groups, phosphate groups, and phosphinate groups, with an oxygen atom (O) interposed therebetween (M-OP bond). Group X is bonded to a group R (wherein R is a hydrocarbon group, or a group comprising an atom other than carbon at one or two locations within a hydrocarbon group). The phosphorus atom concentration in the portion of the surface of the metal base material on which the plating layer is not formed is lower than the phosphorus atom concentration in the organic layer provided on the plating layer.

An ultrasonic cleaning equipment (1) according to the present invention includes a treatment tank (10) that stores a cleaning liquid that cleans an object to be cleaned and in which the object to be cleaned is immersed; an ultrasonic application mechanism (20) that applies ultrasonic waves to the cleaning liquid retained in an interior of the treatment tank; and a curved surface member (30) that is located in a range defined by an angle of inclination from a perpendicular direction in an end portion of a vibrating surface of the ultrasonic application mechanism to an outside with respect to the vibrating surface and that is held on a wall surface and/or a bottom surface of the treatment tank.

Ferritic stainless steel is characterized by including, by mass %: Cr: 12.0% to 16.0%; C: 0.020% or less; Si: 2.50% or less; Mn: 1.00% or less; P: 0.050% or less; S: 0.0030% or less; Al: 2.50% or less; N: 0.030% or less; Nb: 0.001% to 1.00%; one or more of B: 0.0200% or less, Sn: 0.20% or less, Ga: 0.0200% or less, Mg: 0.0200% or less, and Ca: 0.0100% or less; and a balance consisting of Fe and impurities, in which Expression (1) is satisfied.

10(B+Ga)+Sn+Mg+Ca >0.020 (1)

A method for manufacturing a grain-oriented electrical steel sheet according to an aspect of the present invention includes a step of obtaining a hot-rolled steel sheet by carrying out hot rolling on a slab containing a predetermined component composition with a remainder including Fe and impurities, a step of obtaining a hot-rolled annealed sheet by carrying out hot-rolled sheet annealing as necessary, a step of carrying out pickling to obtain a pickled sheet, a step of carrying out cold rolling to obtain a cold-rolled steel sheet, a step of carrying out primary recrystallization annealing, a step of applying an annealing separating agent including MgO to a surface and then carrying out final annealing to obtain a final-annealed sheet, and a step of applying an insulating coating and then carrying out flattening annealing.