American Heat-Resistant Steel Grades
Heat-resistant steel is a type of alloy steel characterized by its resistance to high temperatures and its ability to maintain strength and hardness at elevated temperatures. Heat-resistant steels are used in a variety of industries, including automotive, aircraft, defense, and energy. Heat-resistant steels have different grades to meet various needs and conditions. In the United States, the most common grades of heat-resistant steels are specified by the American Society of Testing and Materials (ASTM). These grades are usually indicated by a code starting with the letter “A” followed by two digits.
ASTM A53 is a low-carbon steel alloy containing manganese, phosphorus, sulfur, and silicon. This type of steel is often used in structural applications, including handrails, stairways, and fencing, as well as oil and gas pipelines.
ASTM A325 is a high-strength, low-alloy steel commonly used in structural applications, such as bolts, nuts, and fasteners. This grade of heat-resistant steel is often used in the manufacture of heavy construction equipment, including bulldozers, loaders, and front-end graders.
ASTM A387 is a chromium-molybdenum-based alloy steel used in a variety of applications that must withstand high temperatures. This grade of steel is often used in power plants and oil refineries, where it is exposed to high temperatures and pressure.
ASTM A572 is a high-strength low-alloy steel that has been normalized and treated with molten salts. This grade of steel is usually used in industrial boilers and pressure vessels.
ASTM A514 is a heat-treated quenched and tempered steel that has excellent strength and ductility. This grade of heat-resistant steel is often used in the construction and mining industries, where it is required to protect machinery from high temperatures and pressure.
ASTM A516 is a carbon steel alloy used in a variety of applications. This grade of steel is often used in pressure vessels and boilers due to its excellent strength and corrosion resistance.
ASTM A633 is a high-strength low-alloy steel that is quenched and tempered for improved strength and ductility. This grade of heat-resistant steel is commonly used in construction and agriculture.
ASTM A662 is a medium-carbon, low-alloy steel often used in truck and trailer frames, wheel hubs, and other components. This grade of steel has excellent weldability and is commonly used in automobile parts and aircraft components.
ASTM A841 is a high-strength, low-alloy steel often found in welding materials. This grade of steel is often used in structural and heavy equipment applications that require a high level of toughness and wear resistance.
ASTM A1043 is a cold-formed, weldable steel that is often used in automotive and shipbuilding applications. This type of steel is highly corrosion-resistant and is commonly used in components such as bracketry and conduit.
Heat-resistant steel is a valuable and reliable material that enables the construction of components that can withstand rigorous environments. Its different grades allow for the best selection for a particular application. The ASTM grades help to ensure that the desired properties of the steel are present and that the material can perform properly.
