Product Name: Carbon Steel Blind Flange
Type: Blind Flange with Testing Hole
Size: 60 Inches, DN1500
Pressure: Class 300 LB, PN50
Design Standard: ASME B16.47 Series A
Material: ASTM A105N, Forged Carbon Steel
Sealing Face: Raised Face (RF)

Source: https://www.landeeflange.com/carbon-steel-blind-flange-asme-b16-47-a-a105n-60-in-cl300.html