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MIL-DTL-46100E specifies a steel of identical hardness. [3] MIL-DTL-32332 specifies ultra-hard steel, with Brinell hardness in excess of 570. [3] A Chinese publication lists 30MnCrNiMo "685" steel as the material used in Chinese rolled armor plates, with a Brinell Hardness of HBW 444-514 (thin) / 429-495 (thick).
Somewhat more ductile than the average for any similar armor, even Krupp's post-World War I "Wotan weich" armor, STS could be used as structural steel, whereas traditional armor plate was entirely deadweight. STS was expensive, but the United States could afford to use it, lavishly, and did so on virtually every class of warship constructed ...
The use of steel plates sewn into flak jackets dates to World War II, and was replaced by more modern materials such as fibre-reinforced plastic, since the mid-20th century. Mail armour is a layer of protective clothing worn most commonly from the 9th to the 13th century, though it would continue to be worn under plate armour until the 15th ...
The heavy armor consists of around 200 steel plates, each around 8 millimeters thick, that wrap around the exterior of the Patriot's control unit, where the crew sits to operate the system. The ...
Harvey armor was a type of steel armor developed in the early 1890s in which the front surfaces of the plates were case hardened. The method for doing this was known as the Harvey process, and was invented by the American engineer Hayward Augustus Harvey. The Harvey United Steel Company was a steel cartel whose chairman was Albert Vickers.
Main Office of Lukens Steel. Lukens Steel Company, located in Coatesville, Pennsylvania, is the oldest iron mill in commission within the United States.. In 1995, it was one of the three largest producers of plate steel and the largest domestic manufacturer of alloy-plate.
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