carbon steel flange 1.size:1/2"~60" 2.standard:DIN,ANSI,JIS,GB 3.material:Carbon steel carbon steel flange Our company supply various types of flanges. Size1/2"~60" (DN15-DN2000) Wall thicknesssch5-sch160,xs,xxs. Materialcarbon steel:ASTM A234 WPB,WPC,ASTMA420WPL9 WPL3,WPL6,WPHY42/46/52/60/65/70stainless steel:A403WP304/304L,A304WP 316/316L,WP321,WP347,WPS31254 alloy steel:ASTM A234 WP, WP11,WP12 ...