ASTM A53 Grade A & B Pipes: Specifications, Properties, and Applications
ASTM A53 is a standard specification for seamless and welded black and hot-dipped galvanized steel pipes used for mechanical and pressure applications, as well as ordinary uses in steam, water, gas, and air lines. ASTM A53 pipes are available in Grade A and Grade B, with Grade B being the most commonly used due to its higher strength.