are used where ease in machining is the criterion

contain carbon in free form

require least cutting force

do not exist

copper, zinc and iron

iron, nickel and copper

iron, lead and tin

iron, aluminium and magnesium

63 to 67% nickel and 30% copper

88% copper, 10% tin and rest zinc

alloy of tin, lead and cadmium

iron scrap and zinc

white metal

solder admiralty

fusible metal

phosphor bronze

modulus of elasticity is fairly low

wear resistance is very good

fatigue strength is not high

creep strength limits its use to fairly low temperatures