... PN6-PN40 carbon steel forged flangesize:DN15-DN2000material:cs&sspressure:5k,10k,16k,20k,30k,150# to 2500#,PN6-PN40carbon steel forged flange 1.Size ... AS2129,GOST-128204.Types:plate,slip-on,threaded,socket weld,blind flange5.Process:free forging, plate cutting, heat treat, ... check or Third Party inspection11.Carbon Steel:A105,SS400,SF440,RST37.2,S235,C22.812.Stainless Steel:F304,F304L,F316,F316L,316Ti ...