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MIL-DTL-46177 is an older, now-replaced standard for a high hardness steel RHA. [4] It specifies a harder steel that is nearly identical to AR500 in terms of tensile and yield strength. [5] The Brinell hardness of AR500 is in the 477-534 range. MIL-DTL-46100E specifies a steel of identical hardness. [3]
Lamellar armour is a type of body armour made from small rectangular plates (scales or lamellae) of iron, steel, leather , bone, or bronze laced into horizontal rows. Lamellar armour was used over a wide range of time periods in Central Asia , Eastern Asia (especially in China , Japan , Korea , Mongolia , and Tibet ), Western Asia , and Eastern ...
Bronze muscle cuirass, Italy, c. 350–300 BC. Partial plate armour, made out of bronze, which protected the chest and the lower limbs, was used by the ancient Greeks, as early as the late Bronze Age. The Dendra panoply protected the entire torso on both sides and included shoulder and neck protections.
A bronze is an alloy of copper and other metals, most often tin, but also aluminium and silicon. Aluminium bronzes are alloys of copper and aluminium. The content of aluminium ranges mostly between 5% and 11%.
Bronze and brass are both copper alloys that are solid solution strengthened. Bronze is the result of adding about 12% tin to copper while brass is the result of adding about 34% zinc to copper. Both of these alloys are being utilized in coins production, ship hardware, and art.
Krupp armour was a type of steel naval armour used in the construction of capital ships starting shortly before the end of the nineteenth century. It was developed by Germany's Krupp Arms Works in 1893 and quickly replaced Harvey armour as the primary method of protecting naval ships, before itself being supplanted by the improved Krupp ...
It is also known as the strength-to-weight ratio or strength/weight ratio or strength-to-mass ratio. In fiber or textile applications, tenacity is the usual measure of specific strength. The SI unit for specific strength is Pa ⋅ m 3 / kg , or N ⋅m/kg, which is dimensionally equivalent to m 2 /s 2 , though the latter form is rarely used.
Coat covered with gold-decorated scales of the pangolin. India, Rajasthan, early 19th century Dacian scale armour on Trajan's column. Scale armour is an early form of armour consisting of many individual small armour scales (plates) of various shapes attached to each other and to a backing of cloth or leather in overlapping rows. [1]