Product Name: High Pressure WN Flanges
Type: Weld Neck Flange
Design Standard: ANSI/ASME B16.5
Material: Forged Stainless Steel ASTM A182 F316/F316L
Size: 10 Inch, DN250
Pressure Rating: Class 2500 LB, PN420
Wall Thickness: SCH 160
Sealing Face: RTJ
Special Requirement: Sour Service, NACE MR0175 Compliance
Source: https://www.landeeflange.com/high-pressure-wn-flanges-f316-f316l-10-inch-cl2500-rtj.html