ASTM A537 is a specification for pressure vessel-grade carbon steel plates that are heat-treated and are primarily used in the construction of welded pressure vessels in moderate to lower temperature service. The A537 steel plates are available in three different classes: Class 1, Class 2, and Class 3. Each class has different chemical composition and mechanical properties to suit specific temperature and pressure requirements.
These plates are typically used in applications where improved notch toughness is required, such as in the oil and gas industry, chemical processing, and power generation. The A537 carbon steel plates exhibit high strength, good weldability, and excellent impact resistance, making them suitable for various pressure vessel applications.