Search results
Results From The WOW.Com Content Network
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 ...
Metal Supermarkets supplies various metals, including various alloys, rolled metals, aluminium, brass, copper, steel, and tool steel, among others, in various shapes and grades such as bars, beams, sheets, and pipes, which can be cut to a size desired by the customer. Franchises can supply more uncommon metals for customers on request.
Wah Chang Corporation was an American manufacturing company in the metal or alloy industry based in Albany, Oregon in the United States. Since 2014, it has been a business unit of Allegheny Technologies and makes corrosion-resistant metals, such as hafnium, niobium, titanium, vanadium, and zirconium.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
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.
Reconstruction of Ötzi's copper axe (c. 3300 BCE). The Copper Age, also called the Eneolithic or the Chalcolithic Age, has been traditionally understood as a transitional period between the Neolithic and the Bronze Age, in which a gradual introduction of the metal (native copper) took place, while stone was still the main resource utilized.
Group 11, by modern IUPAC numbering, [1] is a group of chemical elements in the periodic table, consisting of copper (Cu), silver (Ag), gold (Au), and roentgenium (Rg), although no chemical experiments have yet been carried out to confirm that roentgenium behaves like the heavier homologue to gold.
Kloeckner Metals Corporation's core business is the sale of steel and non-ferrous metals. The North American subsidiary of Klöckner & Co SE , Kloeckner Metals Corporation is the fourth-largest service center company in North America with 50 locations in North America servicing 8,000 metalworking businesses in the United States , Puerto Rico ...