Boiler quality plates, also known as boiler grade plates, are mild steel plates with chemical composition and mechanical properties that allow them to withstand high temperatures and pressure. Boiler plates are used in a variety of high temperature applications, including steam boilers, mild steel boilers, pressure vessels, pen stock pipes, and LPG bullets.

Boiler quality plates, also known as pressure vessel plates, are manufactured to produce supreme quality carbon steel plates for use in welded pressure vessels where notch toughness is critical. Because it meets the fine austenitic grain size requirements, the steel is killed and can be normalised. Boiler Quality plates are available in a variety of grades with varying tensile strengths, which explains why the specification is so popular. Because boilers and pressure vessels transport high-pressure and high-temperature fluids while also holding low-temperature fluids, the steel plates must have properties such as high strength, toughness, ductility, and corrosion resistance.