Carbon steel flange, that is, the body material is carbon steel plate or end flange connection. The flanges containing carbon steel are called carbon steel flanges. Common materials are cast carbon steel grades WCB, forgings A105, or Q235b, A3, 10#, #20 steel, 16 manganese, #45 steel, Q345B, etc. Besides carbon steel flanges, we also supply stainless steel flanges