PetropipeFZE is one of the best carbon steel forged flanges supplier. We deliver various variety of flanges such as ASTM A105, LF2 , LF3 and LF6." We are one of the pioneer distributors and dealer of ASTM A105, LF2, LF3 and LF6 CARBON STEEL FORGED FLANGES, where a low inter pass temperature should be maintained. In general, preparation for welding should be similar to ASTM A105 Carbon Steel Forged Pipe Flanges and should include proper cleaning and handling. https://petropipefze.com/carbon-steel-forged-flanges/