In 2011 the Bank of Russia launched a commemorative coin in denominations of 25 rubles dedicated to the XXII Olympic Games 2014 in Sochi.
At present time the coin is minted at the St Petersburg Mint run of about 10 million pieces from tape of copper-nickel alloy, which produces the Kirov non-ferrous metals processing plant.
According to the Chief Engineer of Kirov non-ferrous metals processing plant Alexander Ryaposov, the order to tape of the alloy CN25 was received last year, and from March 2011, the plant started supplying industrial parties. This followed the finishing of tried and tested technology of the monetary alloy CN25, which development the plant started back in 2001, for the coinage of Indian rupees.
The peculiarity of the work was to reach an accuracy parameter of the thickness of the tape during rolling, due to particularly stringent requirements to comply with the weight of the coins, as well as a tape surface quality requirements, said Aleksandr Ryaposov. -Starting in March 2011, Kirov non-ferrous metals processing plant manufactured more than 330 tons of monetory tape, in full conformity with the specifications of the customer.
Since January 2012 Kirov non-ferrous metals processing plant continued supply of alloy CN25 for the Olympic coins. Its uniqueness lies in the fact that for the first time in circulation is launched a 25-ruble commemorative coin, made of base metal.