ASTM A105 Carbon Steel Forged Flange for High-Temperature and Pressure Applications ASTM A105 flanges are forged carbon steel flanges designed for high-temperature and high-pressure piping systems. They offer excellent strength, durability, and weldability, making them ideal for oil & gas, petrochemical, and power plant applications. For more info visit: https://www.pipingmaterial.sa/astm-a105-flange/