DN450 (18" NB) ASA1500 RF BOSSED SLIP ON FLANGE SS 304

Flange outside diameter: 914.4mm (O)
Flange thickness: 162.0mm (C)
Pitch Circle Diameter (PCD): 774.7mm (K)
Raised Face Height: 6.3mm (RF)
Bolt Holes: 16 off 73.1mm diameter
Bore Diameter: 461.7mm (B)
Material: Stainless Steel
Grade: 304
Standards: ASME B16.5
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Slip on Flange, Weld on, Stainless Steel, Raised Faced, ASA 1500LB, SOB