ASTM A108-13 is a standard specification for carbon and alloy steel bars for machining. This specification covers cold-finished bars of various grades, including carbon steel, alloy steel, and stainless steel, that are intended for use in machining applications. The mechanical properties and chemical composition of the A108-13 steel grade make it suitable for a wide range of applications.
The chemical composition of A108-13 steel grade is determined by the maximum limits of carbon, manganese, phosphorus, sulfur, and silicon present in the steel. The carbon content determines the hardness and strength of the steel, while the manganese content improves its hardenability and strength. Phosphorus and sulfur are impurities that can negatively affect the steel’s mechanical properties, so their maximum limits are specified to ensure the desired properties. Silicon is added to improve the steel’s strength and toughness.
The mechanical properties of A108-13 steel grade are determined through testing and evaluation of various parameters, including tensile strength, yield strength, elongation, reduction in area, and hardness. These properties are important for determining the steel’s ability to resist deformation, withstand stress, and perform in specific applications.
The A108-13 steel grade has a wide range of applications due to its desirable properties. It is commonly used in the manufacturing of shafts, pins, gears, couplings, and other machine parts that require high strength, wear resistance, and machinability. The steel’s versatility allows it to be used in various industries, such as automotive, aerospace, construction, and manufacturing.
In summary, A108-13 steel grade is a versatile and widely used steel specification that offers excellent mechanical properties and chemical composition for machining applications. Its properties make it suitable for a variety of industries and applications where high strength, wear resistance, and machinability are essential.