cast iron

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cast iron

A hard, brittle, nonmalleable iron-carbon alloy, cast into shape, containing 2 to 4.5 percent carbon, 0.5 to 3 percent silicon, and lesser amounts of sulfur, manganese, and phosphorus.

cast iron

(Metallurgy) iron containing so much carbon (1.7 to 4.5 per cent) that it cannot be wrought and must be cast into shape
1. (Metallurgy) made of cast iron
2. rigid, strong, or unyielding: a cast-iron decision.
3. certain to be effective; absolutely reliable

cast′ i′ron

an alloy of iron, carbon, and other elements, cast as a soft and strong, or as a hard and brittle iron.


1. made of cast iron.
2. not subject to change or exception: a cast-iron rule.
3. hardy: a cast-iron stomach.

Cast Iron

An alloy of carbon and iron containing over 1.7 percent carbon. However, carbon contents exceeding about six percent are too weak and brittle to be of much use. Cast iron has a low tensile strength and is quite brittle, but can be cheaply produced in intricate shapes. It was widely used in making such things as mowing machine frames, heavy lugged wheels, and large gears with teeth not subjected to high stress. Because of its brittleness and hardness, little machining was done on cast iron parts.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.cast iron - an alloy of iron containing so much carbon that it is brittle and so cannot be wrought but must be shaped by casting
atomic number 26, Fe, iron - a heavy ductile magnetic metallic element; is silver-white in pure form but readily rusts; used in construction and tools and armament; plays a role in the transport of oxygen by the blood
alloy cast iron, alloy iron - cast iron containing alloying elements (usually nickel or chromium or copper or molybdenum) to increase the strength or facilitate heat treatment
pot metal - cast iron used for making cooking wares
pearlite - a lamellar mixture of cementite and ferrite formed during the cooling of austenite; a constituent of steel and cast iron
pig iron - crude iron tapped from a blast furnace
حَديدٌ مَصْبوبٌ على شَكلِ سَبائِك
öntött vasöntöttvas
dökme demir

cast iron

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cast iron



(kaːst) past tense past participle cast verb
1. to throw. The angler cast his line into the river; These facts cast new light on the matter; She cast him a look of hatred.
2. to get rid of; to take off. Some snakes cast their skins.
3. to shape (metal etc) by pouring into a mould. Metal is melted before it is cast.
4. to give a part in a play etc to. She was cast as Lady Macbeth.
5. to select the actors for (a film etc). The director is casting (the film) tomorrow.
6. to give (a vote). I cast my vote for the younger candidate.
1. a throw. At his third cast he caught a fish.
2. something made by moulding. The doctor put a plaster cast on his broken leg.
3. a mould. The hot metal is poured into a cast.
4. the complete set of actors in a play, opera etc. the whole cast of the play.
5. something that is ejected by certain animals, eg the earthworm. worm casts all over the grass.
ˈcastaway noun
a shipwrecked person.
casting vote
the deciding vote of the chairman of a meeting when the other votes are equally divided.
cast iron
unpurified iron melted and shaped in a mould.
ˈcast-iron adjective
1. made of cast iron. a cast-iron frying-pan.
2. very strong. cast-iron muscles.
ˈcast-off noun, adjective
(a piece of clothing etc) no longer needed. cast-off clothes; I don't want my sister's cast-offs.
cast off
1. to untie (the mooring lines of a boat).
2. (also cast aside) to reject as unwanted.
3. in knitting, to finish (the final row of stitches).
cast on
in knitting, to make the first row of stitches.