Product Name: ASTM A182 F22 Weld Neck Flange
Standard: ASME B16.5
Material: Alloy Steel ASTM A182 F22
Size: 12 Inch, DN300
Pressure: Class 900 LB, PN150
Wall Thickness: SCH 40
Face: RTJ
Surface Treatment: Black Painting
Source: https://www.landeeflange.com/alloy-steel-weld-neck-flange-asme-b16-5-a182-f22-12-inch.html