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It was soon replaced with gilding metal to reduce metal fouling in the bore. Currently, cupronickel and nickel silver remain the basic material for silver-plated cutlery. It is commonly used for mechanical and electrical equipment, medical equipment, zippers, jewelry items, and both for strings for instruments in the violin family, and for ...
Electrical, valves, pumps, oilfield tools, aerospace landing gears, robotic welding, mold making [3] Cold-rolled 104 110 5 B81 (Rockwell) Free-cutting brass Cu 62.0, Zn 35.5, Pb 2.5 Cold-drawn 44 70 18 B80 (Rockwell) Screws, nuts, gears, keys Nickel silver (ASTM B122) Cu 65.0, Zn 17.0, Ni 18.0 Annealed 25 58 40 70 Hardware Cold-rolled 70 85 4 170
The Unified Numbering System for Metals and Alloys (UNS) is an alloy designation system widely accepted in North America. Each UNS number relates to a specific metal or alloy and defines its specific chemical composition , or in some cases a specific mechanical or physical property .
14-4CrMo, manufactured by Latrobe Specialty Metals. A wear-resistant, martensitic stainless tool steel that exhibits better corrosion resistance than 440C stainless steel. 2Cr13, belongs to 420 grade series, very basic. EN 1.4021 / DIN X20Cr13, widely used in economic cutting tools, 50HRC max after heat treatment.
16th century cupellation furnaces (per Agricola). Cupellation is a refining process in metallurgy in which ores or alloyed metals are treated under very high temperatures and subjected to controlled operations to separate noble metals, like gold and silver, from base metals, like lead, copper, zinc, arsenic, antimony, or bismuth, present in the ore.
Moderate-strength, tough. Excellent plasticity in molten state. Gap-filling. Excellent strength and ductility during cooling, which is an advantage over silver brazes when joining materials with dissimilar thermal expansion. For carbides, stainless steels, tool steels, and nickel alloys. Used for joining carbide tool tips to steel holders.
Calx – calcium oxide; was also used to refer to other metal oxides. Chalcanthum – the residue produced by strongly roasting blue vitriol (copper sulfate); it is composed mostly of cupric oxide. Chalk – a rock composed of porous biogenic calcium carbonate. CaCO 3; Chrome green – chromic oxide and cobalt oxide.
Osisko Metals Incorporated (French: Métaux Osisko Incorporée) is a Canadian mining corporation.It currently holds two historical past-producing mines — the Pine Point Mine in the Northwest Territories and the Gaspé Copper mine in Quebec — with the intent to turn them into operating mines.