Do you know about different types of P9 and ASTM A335 P91 pipes?
The ASME SA335 grade P91 pipe manufacturing process begins with a cold drawing or hot finishing, followed by heat treatment. The heat treatment process starts with normalizing the pipe at 1050 °C, followed by cooling by air at 200 °C and tempering at 760 °C. You can choose among different super duplex pipe suppliers. The ASTM a335 P91 alloy steel pipe is well suited to shape, bending, flanging, and fusion welding due to the manufacturing process.