Skip to Content

Integraflow Store 

ANSI B16.5

Stainless Steel Bossed Slip-On Flanges – ANSI B16.5, 150lb to 1500lb

Integraflow supplies ANSI/ASME B16.5 stainless steel bossed slip-on flanges in 304 (1.4301) and 316/L (1.4404)grades, available in 150lb, 300lb, 600lb, 900lb, and 1500lb pressure ratings, sourced from European and Far Eastern mills, and provided with full BS EN 10204 3.1 certification, ideal for reliable welded flange connections in industrial, chemical, and high-pressure pipeline systems.

DN400 (16" NB) ASA150 RF BOSSED SLIP ON FLANGE SS 304
Flange outside diameter: 596.9mm (O)
Flange thickness: 36.5mm (C)
Flange hub height: 63.5mm (Y)
Pitch Circle Diameter (PCD): 539.7mm (K)
Raised Face Height: 1.5mm (RF)
Bolt Holes: 16 off 28.4mm diameter
Bore Diameter: 410.4mm (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 150LB, SOB
Contact us for pricing 0.0 GBP
DN400 (16" NB) ASA150 RF BOSSED SLIP ON FLANGE SS 316
Flange outside diameter: 596.9mm (O)
Flange thickness: 36.5mm (C)
Flange hub height: 63.5mm (Y)
Pitch Circle Diameter (PCD): 539.7mm (K)
Raised Face Height: 1.5mm (RF)
Bolt Holes: 16 off 28.4mm diameter
Bore Diameter: 410.4mm (B)
Material: Stainless Steel
Grade: 316
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 150LB, SOB
Contact us for pricing 0.0 GBP
DN400 (16" NB) ASA1500 RF BOSSED SLIP ON FLANGE SS 304
Flange outside diameter: 825.5mm (O)
Flange thickness: 146.0mm (C)
Flange hub height: 99.1mm (Y)
Pitch Circle Diameter (PCD): 704.8mm (K)
Raised Face Height: 6.3mm (RF)
Bolt Holes: 16 off 66.5mm diameter
Bore Diameter: 410.4mm (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
Contact us for pricing 0.0 GBP
DN400 (16" NB) ASA1500 RF BOSSED SLIP ON FLANGE SS 316
Flange outside diameter: 825.5mm (O)
Flange thickness: 146.0mm (C)
Flange hub height: 99.1mm (Y)
Pitch Circle Diameter (PCD): 704.8mm (K)
Raised Face Height: 6.3mm (RF)
Bolt Holes: 16 off 66.5mm diameter
Bore Diameter: 410.4mm (B)
Material: Stainless Steel
Grade: 316
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
Contact us for pricing 0.0 GBP
DN400 (16" NB) ASA300 RF BOSSED SLIP ON FLANGE SS 304
Flange outside diameter: 647.7mm (O)
Flange thickness: 57.1mm (C)
Flange hub height: 82.5mm (Y)
Pitch Circle Diameter (PCD): 571.5mm (K)
Raised Face Height: 1.5mm (RF)
Bolt Holes: 20 off 35.0mm diameter
Bore Diameter: 410.4mm (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 300LB, SOB
Contact us for pricing 0.0 GBP
DN400 (16" NB) ASA300 RF BOSSED SLIP ON FLANGE SS 316
Flange outside diameter: 647.7mm (O)
Flange thickness: 57.1mm (C)
Flange hub height: 82.5mm (Y)
Pitch Circle Diameter (PCD): 571.5mm (K)
Raised Face Height: 1.5mm (RF)
Bolt Holes: 20 off 35.0mm diameter
Bore Diameter: 410.4mm (B)
Material: Stainless Steel
Grade: 316
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 300LB, SOB
Contact us for pricing 0.0 GBP
DN400 (16" NB) ASA600 RF BOSSED SLIP ON FLANGE SS 304
Flange outside diameter: 685.8mm (O)
Flange thickness: 76.2mm (C)
Flange hub height: 106.4mm (Y)
Pitch Circle Diameter (PCD): 603.2mm (K)
Raised Face Height: 6.3mm (RF)
Bolt Holes: 20 off 41.1mm diameter
Bore Diameter: 410.4mm (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 600LB, SOB
Contact us for pricing 0.0 GBP
DN400 (16" NB) ASA600 RF BOSSED SLIP ON FLANGE SS 316
Flange outside diameter: 685.8mm (O)
Flange thickness: 76.2mm (C)
Flange hub height: 106.4mm (Y)
Pitch Circle Diameter (PCD): 603.2mm (K)
Raised Face Height: 6.3mm (RF)
Bolt Holes: 20 off 41.1mm diameter
Bore Diameter: 410.4mm (B)
Material: Stainless Steel
Grade: 316
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 600LB, SOB
Contact us for pricing 0.0 GBP
DN450 (18" NB) ASA150 RF BOSSED SLIP ON FLANGE SS 304
Flange outside diameter: 635.0mm (O)
Flange thickness: 39.6mm (C)
Flange hub height: 68.3mm (Y)
Pitch Circle Diameter (PCD): 577.8mm (K)
Raised Face Height: 1.5mm (RF)
Bolt Holes: 16 off 31.7mm 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 150LB, SOB
Contact us for pricing 0.0 GBP
DN450 (18" NB) ASA150 RF BOSSED SLIP ON FLANGE SS 316
Flange outside diameter: 635.0mm (O)
Flange thickness: 39.6mm (C)
Flange hub height: 68.3mm (Y)
Pitch Circle Diameter (PCD): 577.8mm (K)
Raised Face Height: 1.5mm (RF)
Bolt Holes: 16 off 31.7mm diameter
Bore Diameter: 461.7mm (B)
Material: Stainless Steel
Grade: 316
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 150LB, SOB
Contact us for pricing 0.0 GBP
DN450 (18" NB) ASA1500 RF BOSSED SLIP ON FLANGE SS 304
Flange outside diameter: 914.4mm (O)
Flange thickness: 162.0mm (C)
Flange hub height: 106.4mm (Y)
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
Contact us for pricing 0.0 GBP
DN450 (18" NB) ASA1500 RF BOSSED SLIP ON FLANGE SS 316
Flange outside diameter: 914.4mm (O)
Flange thickness: 162.0mm (C)
Flange hub height: 106.4mm (Y)
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: 316
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
Contact us for pricing 0.0 GBP
DN450 (18" NB) ASA300 RF BOSSED SLIP ON FLANGE SS 304
Flange outside diameter: 711.2mm (O)
Flange thickness: 60.4mm (C)
Flange hub height: 88.9mm (Y)
Pitch Circle Diameter (PCD): 628.6mm (K)
Raised Face Height: 1.5mm (RF)
Bolt Holes: 24 off 35.0mm 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 300LB, SOB
Contact us for pricing 0.0 GBP
DN450 (18" NB) ASA300 RF BOSSED SLIP ON FLANGE SS 316
Flange outside diameter: 711.2mm (O)
Flange thickness: 60.4mm (C)
Flange hub height: 88.9mm (Y)
Pitch Circle Diameter (PCD): 628.6mm (K)
Raised Face Height: 1.5mm (RF)
Bolt Holes: 24 off 35.0mm diameter
Bore Diameter: 461.7mm (B)
Material: Stainless Steel
Grade: 316
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 300LB, SOB
Contact us for pricing 0.0 GBP
DN450 (18" NB) ASA600 RF BOSSED SLIP ON FLANGE SS 304
Flange outside diameter: 742.9mm (O)
Flange thickness: 82.5mm (C)
Flange hub height: 117.3mm (Y)
Pitch Circle Diameter (PCD): 654.0mm (K)
Raised Face Height: 6.3mm (RF)
Bolt Holes: 24 off 44.4mm 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 600LB, SOB
Contact us for pricing 0.0 GBP
DN450 (18" NB) ASA600 RF BOSSED SLIP ON FLANGE SS 316
Flange outside diameter: 742.9mm (O)
Flange thickness: 82.5mm (C)
Flange hub height: 117.3mm (Y)
Pitch Circle Diameter (PCD): 654.0mm (K)
Raised Face Height: 6.3mm (RF)
Bolt Holes: 24 off 44.4mm diameter
Bore Diameter: 461.7mm (B)
Material: Stainless Steel
Grade: 316
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 600LB, SOB
Contact us for pricing 0.0 GBP
DN500 (20" NB) ASA150 RF BOSSED SLIP ON FLANGE SS 304
Flange outside diameter: 698.5mm (O)
Flange thickness: 42.9mm (C)
Flange hub height: 73.1mm (Y)
Pitch Circle Diameter (PCD): 635.0mm (K)
Raised Face Height: 1.5mm (RF)
Bolt Holes: 20 off 31.7mm diameter
Bore Diameter: 513.0mm (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 150LB, SOB
Contact us for pricing 0.0 GBP
DN500 (20" NB) ASA150 RF BOSSED SLIP ON FLANGE SS 316
Flange outside diameter: 698.5mm (O)
Flange thickness: 42.9mm (C)
Flange hub height: 73.1mm (Y)
Pitch Circle Diameter (PCD): 635.0mm (K)
Raised Face Height: 1.5mm (RF)
Bolt Holes: 20 off 31.7mm diameter
Bore Diameter: 513.0mm (B)
Material: Stainless Steel
Grade: 316
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 150LB, SOB
Contact us for pricing 0.0 GBP
DN500 (20" NB) ASA1500 RF BOSSED SLIP ON FLANGE SS 304
Flange outside diameter: 984.2mm (O)
Flange thickness: 177.8mm (C)
Flange hub height: 112.0mm (Y)
Pitch Circle Diameter (PCD): 831.8mm (K)
Raised Face Height: 6.3mm (RF)
Bolt Holes: 16 off 79.2mm diameter
Bore Diameter: 513.0mm (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
Contact us for pricing 0.0 GBP
DN500 (20" NB) ASA1500 RF BOSSED SLIP ON FLANGE SS 316
Flange outside diameter: 984.2mm (O)
Flange thickness: 177.8mm (C)
Flange hub height: 112.0mm (Y)
Pitch Circle Diameter (PCD): 831.8mm (K)
Raised Face Height: 6.3mm (RF)
Bolt Holes: 16 off 79.2mm diameter
Bore Diameter: 513.0mm (B)
Material: Stainless Steel
Grade: 316
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
Contact us for pricing 0.0 GBP
DN500 (20" NB) ASA300 RF BOSSED SLIP ON FLANGE SS 304
Flange outside diameter: 774.7mm (O)
Flange thickness: 63.5mm (C)
Flange hub height: 95.2mm (Y)
Pitch Circle Diameter (PCD): 685.8mm (K)
Raised Face Height: 1.5mm (RF)
Bolt Holes: 24 off 35.0mm diameter
Bore Diameter: 513.0mm (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 300LB, SOB
Contact us for pricing 0.0 GBP
DN500 (20" NB) ASA300 RF BOSSED SLIP ON FLANGE SS 316
Flange outside diameter: 774.7mm (O)
Flange thickness: 63.5mm (C)
Flange hub height: 95.2mm (Y)
Pitch Circle Diameter (PCD): 685.8mm (K)
Raised Face Height: 1.5mm (RF)
Bolt Holes: 24 off 35.0mm diameter
Bore Diameter: 513.0mm (B)
Material: Stainless Steel
Grade: 316
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 300LB, SOB
Contact us for pricing 0.0 GBP
DN500 (20" NB) ASA600 RF BOSSED SLIP ON FLANGE SS 304
Flange outside diameter: 812.8mm (O)
Flange thickness: 88.9mm (C)
Flange hub height: 127.0mm (Y)
Pitch Circle Diameter (PCD): 723.9mm (K)
Raised Face Height: 6.3mm (RF)
Bolt Holes: 24 off 44.4mm diameter
Bore Diameter: 513.0mm (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 600LB, SOB
Contact us for pricing 0.0 GBP
DN500 (20" NB) ASA600 RF BOSSED SLIP ON FLANGE SS 316
Flange outside diameter: 812.8mm (O)
Flange thickness: 88.9mm (C)
Flange hub height: 127.0mm (Y)
Pitch Circle Diameter (PCD): 723.9mm (K)
Raised Face Height: 6.3mm (RF)
Bolt Holes: 24 off 44.4mm diameter
Bore Diameter: 513.0mm (B)
Material: Stainless Steel
Grade: 316
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 600LB, SOB
Contact us for pricing 0.0 GBP
DN600 (24" NB) ASA150 RF BOSSED SLIP ON FLANGE SS 304
Flange outside diameter: 812.8mm (O)
Flange thickness: 47.7mm (C)
Flange hub height: 82.5mm (Y)
Pitch Circle Diameter (PCD): 749.3mm (K)
Raised Face Height: 1.5mm (RF)
Bolt Holes: 20 off 35.0mm diameter
Bore Diameter: 615.9mm (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 150LB, SOB
Contact us for pricing 0.0 GBP
DN600 (24" NB) ASA150 RF BOSSED SLIP ON FLANGE SS 316
Flange outside diameter: 812.8mm (O)
Flange thickness: 47.7mm (C)
Flange hub height: 82.5mm (Y)
Pitch Circle Diameter (PCD): 749.3mm (K)
Raised Face Height: 1.5mm (RF)
Bolt Holes: 20 off 35.0mm diameter
Bore Diameter: 615.9mm (B)
Material: Stainless Steel
Grade: 316
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 150LB, SOB
Contact us for pricing 0.0 GBP
DN600 (24" NB) ASA1500 RF BOSSED SLIP ON FLANGE SS 304
Flange outside diameter: 1168.4mm (O)
Flange thickness: 203.2mm (C)
Flange hub height: 127.0mm (Y)
Pitch Circle Diameter (PCD): 990.6mm (K)
Raised Face Height: 6.3mm (RF)
Bolt Holes: 16 off 91.9mm diameter
Bore Diameter: 615.9mm (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
Contact us for pricing 0.0 GBP
DN600 (24" NB) ASA1500 RF BOSSED SLIP ON FLANGE SS 316
Flange outside diameter: 1168.4mm (O)
Flange thickness: 203.2mm (C)
Flange hub height: 127.0mm (Y)
Pitch Circle Diameter (PCD): 990.6mm (K)
Raised Face Height: 6.3mm (RF)
Bolt Holes: 16 off 91.9mm diameter
Bore Diameter: 615.9mm (B)
Material: Stainless Steel
Grade: 316
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
Contact us for pricing 0.0 GBP
DN600 (24" NB) ASA300 RF BOSSED SLIP ON FLANGE SS 304
Flange outside diameter: 914.4mm (O)
Flange thickness: 69.8mm (C)
Flange hub height: 106.4mm (Y)
Pitch Circle Diameter (PCD): 812.8mm (K)
Raised Face Height: 1.5mm (RF)
Bolt Holes: 24 off 41.1mm diameter
Bore Diameter: 615.9mm (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 300LB, SOB
Contact us for pricing 0.0 GBP
DN600 (24" NB) ASA300 RF BOSSED SLIP ON FLANGE SS 316
Flange outside diameter: 914.4mm (O)
Flange thickness: 69.8mm (C)
Flange hub height: 106.4mm (Y)
Pitch Circle Diameter (PCD): 812.8mm (K)
Raised Face Height: 1.5mm (RF)
Bolt Holes: 24 off 41.1mm diameter
Bore Diameter: 615.9mm (B)
Material: Stainless Steel
Grade: 316
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 300LB, SOB
Contact us for pricing 0.0 GBP
DN600 (24" NB) ASA600 RF BOSSED SLIP ON FLANGE SS 304
Flange outside diameter: 939.8mm (O)
Flange thickness: 101.6mm (C)
Flange hub height: 139.7mm (Y)
Pitch Circle Diameter (PCD): 838.2mm (K)
Raised Face Height: 6.3mm (RF)
Bolt Holes: 24 off 50.8mm diameter
Bore Diameter: 615.9mm (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 600LB, SOB
Contact us for pricing 0.0 GBP
DN600 (24" NB) ASA600 RF BOSSED SLIP ON FLANGE SS 316
Flange outside diameter: 939.8mm (O)
Flange thickness: 101.6mm (C)
Flange hub height: 139.7mm (Y)
Pitch Circle Diameter (PCD): 838.2mm (K)
Raised Face Height: 6.3mm (RF)
Bolt Holes: 24 off 50.8mm diameter
Bore Diameter: 615.9mm (B)
Material: Stainless Steel
Grade: 316
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 600LB, SOB
Contact us for pricing 0.0 GBP