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Per-kilogram prices of some synthetic radioisotopes range to trillions of dollars. ... ( mg / kg ) Price [7] Year Source Notes USD/kg USD/L [c] 1: H: Hydrogen ...
The raw material (the metal sheet) has become so costly that craftsmen cannot afford to buy in bulk. The rate of brass in 1986 was around Rs. 40/- per kg. This has risen to about Rs.250/- per kg without the considerable increase in the labor cost of the craftsmen.
Bronze is an alloy consisting primarily of copper, ... In India, bronze sculptures from the Kushana ... The tone ring is a heavy (usually 3 lb; 1.4 kg) folded or ...
One of the largest bullion coins in the world was the 10,000-dollar Australian Gold Nugget coin minted in Australia, which consists of a full kilogram of 99.9% pure gold. In 2012, the Perth Mint produced a 1-tonne coin of 99.99% pure gold with a face value of $ 1 million AUD, making it the largest minted coin in the world with a gold value of ...
Because of the low availability relative to demand, rhenium is among the most expensive industrial metals, with an average price exceeding US$6,000 per kilogram, as of mid-2009. It first traded in 1928 at US$10,000 per kilogram of metal, but traded at US$250 per Troy ounce in mid-2010. [82] It traded in July 2010, at about US$4,000–4,500/kg. [83]
Gunmetal ingot is a related alloy in which the zinc is replaced by 2% lead; this makes the alloy easier to cast but it has less strength. [2]Modified gunmetal contains lead in addition to the zinc; it is typically composed of 86% copper, 9.5% tin, 2.5% lead, and 2% zinc.
Cannon made of bell metal at Malik-e-Maidan, Bijapur, India. Bell metal or bell bronze is an alloy used for making bells and related instruments, such as cymbals.It is a form of bronze with a higher tin content than most other bronzes, usually in approximately a 4:1 ratio of copper to tin (typically, 78% copper, 22% tin by mass).
Bidriware is a metal handicraft from the city of Bidar in Karnataka, India. It was developed in the 14th century C.E. during the rule of the Bahmani Sultans. [1] The term "bidriware" originates from the township of Bidar, which is still the chief center of production. [2] The metal used is white brass that is blackened and inlaid with silver. [2]