| A Coatings |
(English) Coatings on hot-dipped galvanized steels processed to convert the coating completely to zinc-iron alloys; dull gray in appearance, have no spangle, and after proper preparation, are well suited for painting.
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| Abrasion-Resistant Steels |
(english) A family of steel products developed for those applications involved in sliding and/or impact abrasion. |
| ACTUATOR |
(english) A device for converting hydraulic energy into mechanical energy, i.e., a motor or cylinder. |
| Adapti Investment Casting Process |
(english) A lost wax process employing one of three methods; centrifugal, vacuum or gravity-pouring casting. |
| Aging 2 |
(english) A change in properties that occurs at ambient or moderately elevated temperatures after hot working or a heat treating operation (quench aging in ferrous alloys), or after a cold working operation (strain aging). The change in properties is often, but not always, due to a phase change (precipitation), but does not involve a change in chemical composition. In a metal or alloy, a change in properties that generally occurs slowly at room temperature and more rapidly at higher temperatures. |
| Base Box |
(english) Unit of area of 112 sheets of tin mil products (tin plate, tin free steel or black plate) 14 by 20 inches, or 31,360 square inches. Tin Plate is sold, and carried in finished inventory, on a weight per unit area rather than on a thickness basis. |
| Base Type |
(english) Tin Mill term; Thickness divided by .00011. Also weight in pounds of one Base Box of Tin plate. In finished inventory base weight is specified instead of decimal thickness. |
| Brinell Hardness Testing |
(english) Method of determining the hardness of materials; involves impressing a hardened ball of specified diameter into the material surface at a known pressure (10-mm ball, 500-kg load for aluminum alloys). The Brinell hardness number results from calculations involving the load and the spherical area of the ball impression. Direct-reading testing are generally used for routine inspection of forgings, and as a heat treat control function. |
| Flexibility: |
(english) Flexibility is the inverse of stiffness. When a force is applied to a structure, there is a displacement in the direction of the force; flexibility is the ratio of the displacement divided by the force. High flexibility means that a small load produces a large displacement. |
| Inertial Force: |
(english) A fictitious force used for convenience in visualizing the effects of forces on bodies in motion. For an accelerating body, the inertial force is considered as a body force whose resultant acts at the object's center of gravity in a direction opposite the acceleration. The magnitude of the force is the mass of the object times the magnitude of the acceleration. |
