Alloy steels or high-tensile steels are a low-carbon steel, or steels at the lower end of the medium-carbon range. Alloy steel has additional alloying ingredients in order to increase their strength, wear properties or specifically tensile strength.
These alloying ingredients include chromium, molybdenum, silicon, manganese, nickel and vanadium. Impurities such as phosphorus or sulphur have their maximum allowable content restricted.
4140/42 and 4130 Mechanical Tubing are medium carbon alloy grades, which are widely used for many general-purpose applications that require high tensile strength and toughness.
Alloy 4140 is widely used as an alternative to carbon steel where strength and fatigue are a concern. It is a general-purpose alloy used where substantial strength, toughness and hardness are required.
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