Product Name: Stainless Steel WN Flanges
Type: Weld Neck Flange
Design Standard: ASME B16.5
Material: ASTM A182 F44, Stainless Steel
Size: 12 Inches, DN300
Pressure: Class 150 LB, PN20
Wall Thickness: SCH 10S
Source: https://www.landeeflange.com/stainless-steel-wn-flanges-astm-a182-f44-12-inches-150-lb.html