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British Ten Pence Coin
The United Kingdom, British decimal ten pence coin (often shortened to 10p in writing and speech) is a denomination of Coins of the United Kingdom, sterling coinage worth one-tenth of a pound sterling, pound. Its obverse has featured the profile of Queen Elizabeth II since the coin's introduction in 1968, to replace the Florin (British coin), florin (two shilling) coin in preparation for Decimal Day, decimalisation in 1971. It remained the same size as the florin coin (which also remained legal tender) until a smaller version was introduced 30 September 1992, with the older coins being withdrawn on 30 June 1993. Four different portraits of the Queen have been used on the coin; the latest design by Jody Clark was introduced in 2015. The second and current reverse, featuring a segment of the Royal coat of arms of the United Kingdom, Royal Shield, was introduced in 2008. The ten pence coin was originally minted from cupro-nickel (75% Copper, Cu, 25% Nickel, Ni), but since 2012 it has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cupro-nickel
Cupronickel or copper-nickel (CuNi) is an alloy of copper that contains nickel and strengthening elements, such as iron and manganese. The copper content typically varies from 60 to 90 percent. (Monel is a nickel-copper alloy that contains a minimum of 52 percent nickel.) Despite its high copper content, cupronickel is silver in colour. Cupronickel is highly resistant to corrosion by saline water, salt water, and is therefore used for piping, heat exchangers and condensers in seawater systems, as well as for marine hardware. It is sometimes used for the propellers, crankshaft, propeller shafts, and hull (watercraft), hulls of high-quality boats. Other uses include military equipment and chemical, petrochemical, and electrical industries. Another common 20th-century use of cupronickel was silver-coloured coins. For this use, the typical alloy has 3:1 copper to nickel ratio, with very small amounts of manganese. In the past, true silver coins were debasement, debased with cupronicke ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
