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An American cast-iron Dutch oven, 1896. In Asia, particularly China, India, Korea and Japan, there is a long history of cooking with cast-iron vessels. The first mention of a cast-iron kettle in English appeared in 679 or 680, though this wasn't the first use of metal vessels for cooking.
A UNS number only defines a specific chemical composition, it does not provided full material specification. Requirements such as material properties (yield strength, ultimate strength, hardness, etc.), heat treatment, form (rolled, cast, forged, flanges, tubes, bars, etc.), purpose (high temperature, boilers and pressure vessels, etc.) and testing methods are all specified in the material or ...
The "black" in "blacksmith" refers to the black firescale [citation needed], a layer of oxides that forms on the surface of the metal during heating.The origin of smith is the Old English word smið meaning "blacksmith", originating from the Proto-Germanic *smiþaz meaning "skilled worker".
This page was last edited on 6 July 2016, at 02:05 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply ...
Dye penetrant inspection (DP), also called liquid penetrate inspection (LPI) or penetrant testing (PT), is a widely applied and low-cost inspection method used to check surface-breaking defects in all non-porous materials (metals, plastics, or ceramics).
A slack tub is usually a large container full of water used by a blacksmith to quench hot metal. The slack tub is principally used to cool parts of the work during forging (to protect them, or keep the metal in one area from "spreading" for example, nearby hammer blows); to harden the steel; to tend a coal or charcoal forge; and simply to cool ...
The SAE steel grades system is a standard alloy numbering system (SAE J1086 – Numbering Metals and Alloys) for steel grades maintained by SAE International.. In the 1930s and 1940s, the American Iron and Steel Institute (AISI) and SAE were both involved in efforts to standardize such a numbering system for steels.
3. Adequate draft should be provided; a good guideline is at least 3° for aluminum and 5° to 7° for steel 4. Generous fillets and radii should be used 5. Ribs should be low and wide 6. The various sections should be balanced to avoid extreme difference in metal flow 7. Full advantage should be taken of fiver flow lines 8.