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Hardness comparison. A variety of hardness -testing methods are available, including the Vickers, Brinell, Rockwell, Meyer and Leeb tests. Although it is impossible in many cases to give an exact conversion, it is possible to give an approximate material-specific comparison table for steels.
The USRA Light Santa Fe was a USRA standard class of steam locomotive designed under the control of the United States Railroad Administration, the nationalized railroad system in the United States during World War I. These locomotives were of 2-10-2 wheel arrangement in the Whyte notation, or 1′E1′ in UIC classification; this arrangement ...
The "10" is the ball diameter in millimeters. The "3000" is the force in kilograms force. The hardness may also be shown as XXX HB YYD 2. The XXX is the force to apply (in kgf) on a material of type YY (5 for aluminum alloys, 10 for copper alloys, 30 for steels). Thus a typical steel hardness could be written: 250 HB 30D 2. It could be a ...
Most of the area will be uninhabitable for weeks or months. Category 5 hurricane (major): 157 mph or higher Catastrophic damage will occur: A high percentage of framed homes will be destroyed ...
However, BirdLife International's Handbook of the Birds of the World (HBW) treats it as a subspecies of the rufous-vented ground cuckoo (N. geoffroyi), and the SACC is seeking a proposal to possibly reevaluate their treatment. [3] [2] [4] [1] This article follows the majority treatment as a species. It is monotypic. [2]
History and design. The Chesapeake and Ohio tested an Erie Railroad Berkshire locomotive, then stretched the design by adding one more driving axle, creating the 2-10-4. The T-1s were equipped with a trailing truck booster that exerted 15,275 pounds of tractive effort. They could pull the same train as a 2-8-8-2 H-7 and do it faster.
Pennsylvania Railroad class J1. Water cap. 124 scrapped, 6435 rumored to still extant but not confirmed. The PRR J1 was a class of 2-10-4 "Texas" type steam locomotives built between 1942 and 1944. The J1 had over 95,000 pounds-force (422.6 kN) of tractive effort, plus an additional 15,000 lbf (66.7 kN) if the booster engine was used.
It had a parallel boiler and round-topped firebox.While the 2-8-0 had a narrow firebox, the 2-10-0 had a wide firebox placed above the driving wheels. This arrangement was common in the United States (e.g. the USRA 0-8-0) but unusual in Britain, where wide fireboxes were usually used only where there was a trailing bogie, e.g. in 4-4-2 and 4-6-2 types.