fire clay


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Related to fire clay: Fire brick, refractory cement

fire clay,

clayclay,
common name for a number of fine-grained, earthy materials that become plastic when wet. Chemically, clays are hydrous aluminum silicates, ordinarily containing impurities, e.g., potassium, sodium, calcium, magnesium, or iron, in small amounts.
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 that has a high degree of resistance to heat. By the best standards it should have a fusion point higher than 1,600°C;. The term "fire clay" is commonly held to exclude kaolin and other refractory potter's clays. Fire clay should contain high percentages of silica and alumina, with as little as possible of such impurities as lime, magnesia, soda, and potash, which lower the fusion point of the clay. Fire clay often forms the bed layer of earth under seams of coal. Two types are recognized—flint clay, exceedingly hard, nonplastic, and resembling flint in appearance, occurring in the United States; and plastic fire clay. The principal uses of fire clay are in the manufacture of firebrick and of various accessory utensils, such as crucibles, saggers, retorts, and glass pots, used in the metalworking industries.

fire clay

Clay having a melting point above 1600 degrees centigrade, especially used for making fire bricks.

fire clay

a heat-resistant clay used in the making of firebricks, furnace linings, etc.
References in periodicals archive ?
As always, premoisten the cured layer of mortar and lay down a bed of fire clay mortar on top of the regular mortar.
Tenders are invited for Bhilai Steel Plant Intends To Procure 900 Mt Of Calcined Fire Clay Grog, Grain Size: 1-4Mm For The F.
Tenders are invited for Supply of gutter pipe 110mm PVC, Supplying 63mmPVC pipe, Supplying 50mm dia PVC scour pipe Supplying 50mm dia PVC over flow pipe to recharge pit, Supplying scour valve 50mm dia (PVC ) Supplying 63 mm PVC valve at down pipe, Supplying SDB tap, Fire clay Bricks etc.
Tenders are invited for Bhilai Steel Plant Intends To Procure 900 Tons Of Plastic Fire Clay (Lumps) Size 0-200Mm As Detailed In Our Ifb
Tenders are invited for Repairing And Relining With Fire Bricks And Fire Clay Of Oven For Casting Work In Foundry Shop, Shed No.
355 and internal castable refractory which is c-401 (ap green ks-4 product) along with fire clay high alumina brick c-27 (ap green kx-99bf) and insulating fire brick c-55.
Tenders are invited for High Duty Fire Clay Mortar To Specn.
Limited Tenders are invited for Fire Clay And Foundary Grade Bentonite Powder ( 2 Items)