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Term
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Definition
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| Reciprocal Switch |
Within switching districts, railroads often make agreements with each other to switch material to each other, either at no charge or at a reduced rate. When this is done, scrap moving, first on one railroad line into a switching district for delivery to a consumer on a second railroad line, can be switched over at a lower or no additional cost. |
| Reclamation |
Broadly covers the removal and grading of metallic material from an admixture of metallic and nonmetallic substances. |
| Reconsign - Divert - Diversion |
These terms are often incorrectly used but specifically they mean, and should be used to describe, the change in destination of a railroad car already on the way toward an original destination and now changed en route to another new destination. We will sometimes use one of these words when instead we mean "change instructions" meaning that a car has not moved yet but we want it to go to a different place than originally advised. |
| Recoveries |
The percent of the alloy added that stays in the steel. |
| Reducing Agent |
Either natural gas or coal can be used to remove the oxygen from iron ore in order to produce a scrap substitute. In gas-based processes, the iron ore is heated in a vessel as reformed natural gas passes through. In coal-based processes, iron ore is combined with gasified or ground coal and heated. The oxygen in the ore combines with carbon and hydrogen in the gas or coal, producing reduced, or metallic, iron. |
| Reduction(1) |
As opposed to an outright rejection, a car accepted by a consumer as a lesser grade than shipped may be accepted at a reduction in price, and possibly also be classified as a reduction in grade as well.
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| Reduction(2) |
Removing the oxygen from a compound (usually endothermic). |
| Reefer |
A refrigeration boxcar. |
| Refractory |
A ceramic material than can resist great heat and is therefore suitable for lining furnaces. Fireclay, dolomite, magnesite and silica are examples. |
| Refractory Brick |
Heat-resistant brick. Because its melting point is well above the operating temperatures of the process, refractory bricks line most steelmaking vessels that come in contact with molten metal, like the walls of the blast furnace, sides of the ladles, and inside of the BOF and EAF.
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