DN450 PN10 RF BOSSED SLIP ON FLANGE CS S235JR

Flange outside diameter: 615mm (D)
Flange inside diameter: 462.0mm (B1)
Flange thickness (C2): 36mm
Pitch Circle Diameter (PCD): 565mm (K)
Hub height: 63mm (H1)
Neck diameter: 502mm (N2)
Raised Face Diameter: 532mm (d1)
Height of Raised Face: 4mm (f1)
Bolt Holes: 20 off 26mm diameter (L)
Material: Mild Steel
Grade: S235 JR
Standards: EN1092-1
Flange Face: Raised Face
Certification Available: 2.1 BS EN 10204 Material Certification

Alternative terminology:
Bossed Slip on Flange, Weld on, Mild Steel, Carbon Steel, Raised Faced, SOB