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Bath Annealing:

Immersion in a liquid bath, such as molten lead or fused salts, held at an assigned temperature.

Beryllium Copper:

An alloy of copper and 2%-3% beryllium with nickel or cobalt, which shows remarkable age-hardening properties and good electrical conductivity; often used in electrical switches and springs.

Blast Furnace:

A vertical shaft-type smelting furnace in which a hot air blast is used for producing pig iron.

Bloom:

Semi-finished products, hot rolled from ingots.

Blooming-Mill:

A mill used to reduce ingots to blooms, billets, slabs, sheet-bar, etc.

Brass:

A copper-zinc alloy yellow in color; known as “High Brass” or “Two-to-One Brass.”

Brazing:

Joining metals by fusion of nonferrous alloys that have melting points above 800°F but lower than those of the metals being joined.

Bright Annealed Wire:

Steel wire bright drawn and annealed in controlled nonoxidizing atmosphere furnace.

Bright Annealing:

A process of annealing usually carried out in a controlled furnace atmosphere so that surface oxidation is reduced to a minimum and the surface remains relatively bright.

Brinell Hardness Test:

A common standard method of measuring the hardness of certain metals by which the smooth surface of the metal is subjected to indentation by a hardened steel ball under pressure or load. The diameter of the resulting indentation is measured by a special microscope.

Brittleness:

A tendency to fracture without appreciable deformation.

Bronze:

An alloy of copper and tin.

Burr:

A thin ridge or roughness left by a cutting operation such as in metal slitting, shearing, blanking or sawing.

Butt Welding:

Joining two edges or ends by placing one against the other and welding them.