size:DN15 to DN2000 Material: carbon & stainless steel CLASS: 150,300,600,900,1500 Sizes: DN15 to ... month after receiving the formal orderCarbon Steel:A105,SS400,SF440,RST37.2,S235,C22.8Stainless Steel:F304,F304L,F316,F316L,316Ti ... to contact me for flange price. 1.DIN carbon steel flangesMaterial:Rst37.2,St37.2,C22.8)DIN2573 PN6;DIN2576 ... sizes are from 1/2(DN15) to 48(DN1200) steel pipe collar