Nickel brass

Uses. Copper—nickel—iron alloys, UNS C 96200 (90 10 copper nickel) and UNS C 96400 (70 30 copper nickel), are used in corrosion-resistant marine (seawater) appHcations. UNS C 96400 is used for corrosion-resistant marine elbows, flanges, valves, and pumps. Leaded nickel—brass, UNS C 97300 (12% nickel-silver), is used for hardware fittings, valves, and statuary and ornamental castings. 

Nickel silvers These wrought alloys consist essentially of Cu, Zn and Ni, with Ni in the range 10-30%. Leaded nickel brasses are also used, usually where some machining is involved. 

Gilmour, B. and E. Worrall (1995), Paktong The trade in Chinese nickel brass to Europe, in Hook, D. R. and D. R. M. Gaimster (eds.), Trade and Discovery The Scientific Study of Artefacts from Post-Medieval Europe and Beyond, British Museum, London, pp. 279-282. 

Nickel barium titanium primrose priderite, formula and DCMA number, 7 347t Nickel-based alloys, properties of, 77 848t Nickel-base superalloys, 77 103 Nickel battery technology, 77 111 Nickel-beryllium alloys, 3 656-659 Nickel-boron deposition, 9 693-695, 708 Nickel brass, corrosion, 7 812 Nickel bromide, 77 110... 

Among the material properties of great importance and concern is design and choice of the material and its inherent resistance to corrosion. Significant and extensive experimental data on the corrosion rates of readily available metals and their alloys can be found in the literature.35,36 The relative corrosion resistance of some steels, nickel, brass, nickel-copper alloys and Al-Cu alloys in chosen atmosphere35 is shown in Table 1.13. 

Various alloys of nickel and copper are of great industrial importance. The two metals mix in all proportions, the nickel reducing the conductivity and increasing the hardness of the copper. The alloys are variously known as cupro-nickel, nickel bronze, and nickel brass, whilst certain of them have special names such as monel metal, Benedict metal, nickel or German silver, etc. 

Exothermic decomposition with maleic anhydride. Increases the explosive sensitivity of nitromethane. Corrodes many metals steel, 12% and 17% chrome steel, cast iron, monel, aluminum, nickel, brass, bronze, iconel, titanium. 

Today the majority of European coins are made of copper/nickel, but there are some nickel-free coins. Few coins are made of pure nickel. It was decided in 1997 that the Euro coinage shall consist of eight coins - six nickel free and two made of nickel-containing alloys (copper/nickel combined with nickel/ brass). 

Melting, Smelting, and Casting of Metals. Molded graphite has numerous e iplications in the processing of ferrous and non-ferrous metals and alloys such as copper, copper-nickel, brass, bronze, zinc, aluminum alloys, nickel and its alloys, precious metals, and grey and ductile irons.l°ll °l The wide variety of these applications is shown in the following partial list ... 

EMU, the European Monetary Union, decided to use eight denominations of coins, varying in size, color and thickness according to their values 1, 2, 5, 10, 20 and 50 cent coins and 1 and 2 euro coins. (One euro is divided into 100 cents.) The 1-, 2- and 5-cent coins are minted from copper-covered steel, while the 10-, 20- and 50-cent ones are minted from an alloy called Nordic Gold (89% Cu, 5% Al, 5% Zn, 1% Sn). The one- and two-euro coins have inner and outer rings made of nickel-brass and copper alloys. 

Adiabatically operated single scanning calorimeters were used for determinations of the specific heat capacities of copper and brass (Sykes, 1935) and of silver, nickel, brass, quartz, and quartz glass (Moser, 1936). Sykes calorimeter is shown schematically in Figure 7.35. 

Figure 3.5 British 2 coin showing an outer gold-coloured nickel-brass ring made from 76% copper, 20% zinc and 4% nickel and an inner silver-coloured cupro-nickel disc made from 75% copper and 25% nickel... 

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