Glossary |
Boiler and boiler tube industry terms and their definitions.
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| Decarburization | "The loss of carbon forms the surface of an iron-base alloy as the result of heating in an environment which removes the carbon. In medium or high carbon steels, decarburization leads to a pronounced lowering of the fatigue limit." |
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| Density | "The mass per unit volume of a substance, usually expressed in the tubing industry in pounds per cubic inch." |
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| Dimensions | "O.D.- Outside Diameter. Specified in inches and fractions of an inch, or inches and decimals of an inch." |
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| Dimensions | I.D.- Inside Diameter. Specified in the same units as O.D. |
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| Ductility | "The ability of a tube to deform plastically. Frequently, elongation during tensile testing is used as a measurement of this property." |
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| Dye Penetrant Inspection | Non-destructive test employing dye or fluorescent chemical and sometimes black light to detect surface defects. |
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