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a Japanese exotic, high-end steel made by Hitachi. The "Blue" refers to, not the color of the steel itself, but the color of the paper in which the raw steel comes wrapped. Aogami/Blue-Num-1 A steel with higher tensile strength and sharpening ability than blue-2. Aogami/Blue-Num-2 A steel with higher toughness and wear resistance than blue-1.
The blue appearance of the oxide film is also used as an indication of temperature when tempering carbon steel after hardening, indicating a state of temper suitable for springs. Bluing is also used in seasoning carbon steel cookware, to render it relatively rust-proof and non-stick.
Engineer's blue is prepared by mixing Prussian blue with a non-drying oily material (for example, grease).The coloured oil is rubbed onto a reference surface, and the workpiece is then rubbed against the coloured reference; the transfer (by contact) of the pigment indicates the position of high spots on the workpiece or conversely highlight low points. [1]
Blue Stahli, a Detroit, Michigan-based electronic rock project (Stahl is a Germanic root word for steel) Arpeggio of Blue Steel, a 2014 manga and anime series; Marking blue, a dye used in metalworking to aid in marking out rough parts for further machining; Engineer's blue, for the purposes of layout or flattening, respectively, which is also ...
Steel blue is a shade of blue color that resembles blue steel, i.e., steel which has been subjected to bluing for protection from rust. It is one of the less vibrant shades of blue, and is usually identified as a blue-gray color. The first recorded use of steel blue as a color name in English was in 1817. [2] Blue steel
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Mill scale is a complex oxide that contains around 70% iron with traces of nonferrous metals and alkaline compounds. Reduced iron powder may be obtained by conversion of mill scale into a single highest oxide i.e. hematite (Fe 2 O 3) followed by reduction with hydrogen.
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