Product Name: Duplex Steel Weld Neck Flange
Standard: ASME B16.5
Material: Duplex Stainless Steel ASTM A182 F51
Size: 6 Inch, DN150
Pressure Rating: Class 600 LB, PN100
Face Type: Raised Face
Source: https://www.landeeflange.com/duplex-steel-wn-flange-asme-b16-5-f51-6-inch-cl600-rf.html