Carbon Steel API Adapter Flange 1.Size:1/2" to 64" 2.Pressure:Class150 to ... to PN64 3.Carbon steel,Stainless steel Carbon Steel API Adapter Flange1), Name:Flange2), Sizes: 1/2"- 64",15mm - 1600mm3), ... Ratings: JIS 5K, 10K, 16K and 20K.We can provide flange as following: SIZESTANDARDSERIESPRESSURE11/2”—64”ASTM ANSI B16.5, ASA ... , blind etc.Class150,300,600,900,1500 Carbon Steel API Adapter Flange