Forged carbon steel flange SIZE: 1/2" - 48" DIMENSIONS: ASME B16.9/B16.28 PN:150Lb,300Lb,900Lb,1500Lb etc. Forged carbon steel flangeSIZE: 1/2" - 48" DIMENSIONS: ASME B16.9/B16.28PN:150Lb,300Lb,900Lb,1500Lb etc. Material:carbon steel for high temperature,alloy steel etc, Forged carbon steel flange,ISO,API,PED certificate