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Beryllium Copper

(english) An alloy of copper and 2-3% beryllium with optionally fractional percentages of nickel or cobalt. Alloys of this series show remarkable age-hardening properties and an ultimate hardness of about 400 Brinell (Rockwell C43). Because of such hardness and good electrical conductivity, beryllium-copper is used in electrical switches, springs, etc.

Section Modulus:

(english) A property of a cross sectional shape, which depends on shape, and orientation. Section modulus is usually denoted S, and S = I/c, where I = moment of inertia about an axis through the centroid, and c is the distance from the centroid to the extreme edge of the section.

Secured landfill

(Environmental Engineering) A landfill which has containment measures such as liners and a leachate collection system so that materials placed in the landfill will not migrate into the surrounding soil, air and water.

Vapor Pressure

(Concrete Engineering) The pressure exerted by a vapor that is calculated based upon relative humidity and temperature. The higher the humidity and higher temperature, in degrees Fahrenheit, the greater the vapor pressure exerted.

Z-Mill

(english) The full name for z-mill is Sendzimir mill. A Z-mill operates with a very small diameter work roll, normally about 2 inches, backed up by a number of rolls in a pyramid-shaped stack. This roll set up allows you to exert extremely high forces through the work roll and yet keep the work roll from extreme flexing. The take-up roll on the Z-Mill also exerts a tension on the coil as it comes through the mill. The combination of high pressure and tension makes the mill capable of rolling material thin and flat.

Adsorption Water

(Concrete Engineering) Water held on surfaces in a material by either physical and/or chemical forces.

Requirements engineering

(Software Engineering) the activities required to elicit, elaborate, negotiate, specify, and validate system or software requirements

Babbitt

(english) An antifriction metal alloy used for bearing inserts;made of tin,antimony,lead and copper.

Bake Hardenable Steel

(english) A cold-rolled, low-carbon sheet steel used for automotive body panel applications. Because of the steel’s special processing, it has good stamping and strength characteristics and after paint is baked on, improved dent resistance.

Abrasion-Resistant Steels

(english) A family of steel products developed for those applications involved in sliding and/or impact abrasion.

Total solids

(Environmental Engineering) (TS) is the amount of organic and inorganic matter which is contained in a water.

AFS Tests

(english) A number of standard tests determined by American Foundrymen's Society to evaluate molding and core sands.

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