mechanical engineering

Type and composition	Condition	Tensile MN/m2	Product	Use
Pure copper 99.95%Cu	O	220	Sheet, strip wire	High conductivity electrical applications
	H	350
98.85%cu	O	220	All wrought forms	Chemical plant. Deep drawn, spun articles
	H	360
99.25%cu +0.5%As	O	220	All wrought forms	Retains strength at high temperatures. Heat exchangers, steam pipes
	H	360
Brasses 9O%Cu, 10%Zn-gilding metal	O	280	Sheet, strip and wire	Imitation jewellery, decorative work
	H	510
7o%cU, 30%Zn-Cartridge brass	O	325	Sheet, strip	High ductility for deep drawing
	H	700
65%Cu, 35%Zn- standard brass	O	340	Sheet, strip and extrusions	General cold working alloy
	H	700
60%Cu, 40%Zn- Muntz metal	M	375	Hot rolled plate and extrusions	Condenser and heat exchanger plates
59%Cu, 35%Zn, 2%Mn, 2%A1, 2%Fe	M	600	Cast and hot worked forms	Ships screws, rudders
58%Cu, 39%Zn, 3%Pb free cutting	M	440	Extrusions	High speed machine parts
Bronzes 95.5%Cu, 3%Sn, 1.5Zn	O	325	Strip	Coinage
	H	725
5.5%Sn, O.l%Zn, Cu	O	360	Sheet, strip and wire	Springs, steam turbine blades
	H	700
10%Sn, 0.03-0.25P, Cu- phosphor bronze	M	280	Castings	Bushes, bearings and springs
10%Sn, O.S%P, Cu	M	280	Castings	General-purpose castings and bearings
10%Sn, 2%Zn, Cu-Admiralty gunmetal	M	300	Castings	Pressure-tight castings, pump,valve bodies
Aluminium bronze 95?'ocU, 5%AI	O	400	Strip and tubing	Imitation jewellery, condenser tubes
	H	770
10Y0A1, 2.5%Fe, 2-5%Ni, Cu	M	700	Hot worked and cast products	High-strength castings and forgings
Cupronickel 75%cu, 25%Ni	O	360	Strip	British 'silver' coinage
	H	600
70%Cu, 30%Ni	O	375	Sheet and tubing	Condenser tubes, good corrosion resistance
	H	650
29%cu, 68%Ni, 1.25%Fe,1.25%Mn	O	550	All forms	Chemical plant, good corrosion resistance
	H	725
Nickel-silver 55%Cu, 27%Zn, l8%Ni	O	375	Sheet and strip	Decorative use and cutlery
	H	650
Ber y llium-copper 1.75-2.5%Be, 0.5% co, c u	WP	1300	Sheet, strip, wire, forgings	Non-spark tools, springs

0 =annealed, M =as manufactured, H =fully work hardened, WP=solution heat treated and precipitation hardened.