Alloy steel is a class of steel that, in addition to carbon, is alloyed with other elements including manganese, nickel, chromium, molybdenum, vanadium, silicon, and boron. Less common elements include aluminum, cobalt, copper, cerium, niobium, titanium, tungsten, tin, zinc, lead, and zirconium.
Common grades will include 4130, 4140, and 4340, and some less common grades include Grade B7, Grade B16, 8630, 9310, and Maraging Steel.
By comparison to carbon steels, alloy steels can exhibit increased strength, ductility and toughness. The disadvantages, however, are that alloy steels usually have lower machinability, weldability and formability.
Low alloy steels are used in a wide range of industries due to their extreme strength, machinability, cost-effectiveness and availability. They are found in military vehicles, construction equipment, ships, pipelines, pressure vessels oil drilling platforms and in structural components. Examples typical in shipbuilding include HY80 and HY100.
Military specifications we are suited to supplying our customers include MIL-S-23284, MIL-S-24093, MIL-S-890, MIL-S-5000, and T9074 AS GIB.
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