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Nominal Bore

Stainless Steel Nominal Bore Pipework – 304 & 316 Systems

Integraflow supplies complete nominal bore stainless steel pipework systems in 304 and 316/L grades, including pipe, fittings, flanges, valves, and supports in welded, seamless, threaded, and socket weld configurations, ideal for corrosive, and industrial environments across food, pharmaceutical, chemical, and mechanical sectors.

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Nominal Bore

DN125 (5" NB) SCHEDULE 10S A403 SEAMLESS LONG RADIUS 90 DEG ELBOW SS 316
Outside Diameter (OD): 141.3mm
Wall Thickness: 3.40mm
Centre to Face: 190.0mm
Schedule: A403 Seamless
Weight: 6.8kg

Material: Stainless Steel
Material Grade: 316

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Long Radius, 90°, LR, Bend, Weldable
Contact us for pricing 0.0 GBP
DN125 (5" NB) SCHEDULE 10S A403 SEAMLESS SHORT RADIUS 90 DEG ELBOW SS 304
Outside Diameter (OD): 141.3mm
Wall Thickness: 3.40mm
Centre to Face: 127.0mm
Schedule: A403 Seamless
Weight: 4.42kg

Material: Stainless Steel
Material Grade: 304

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Short Radius, 90°, SR, Bend, Weldable
Contact us for pricing 0.0 GBP
DN125 (5" NB) SCHEDULE 10S A403 SEAMLESS SHORT RADIUS 90 DEG ELBOW SS 316
Outside Diameter (OD): 141.3mm
Wall Thickness: 3.40mm
Centre to Face: 127.0mm
Schedule: A403 Seamless
Weight: 4.42kg

Material: Stainless Steel
Material Grade: 316

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Short Radius, 90°, SR, Bend, Weldable
Contact us for pricing 0.0 GBP
DN125 (5" NB) SCHEDULE 10S A403 WELDED EQUAL TEE SS 304
Outside Diameter (OD): 141.3mm
Wall Thickness: 6.65mm
Centre to End: 123.8mm
Schedule: 10S
Weight: 8.98kg

Material: Stainless Steel
Material Grade: ASTM A403

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Tee, Equal Tee, LR, Welding Tee, Weldable
£ 252.35 252.35 GBP
DN125 (5" NB) SCHEDULE 10S A403 WELDED EQUAL TEE SS 316
Outside Diameter (OD): 141.3mm
Wall Thickness: 6.65mm
Centre to End: 123.8mm
Schedule: 10S
Weight: 8.98kg

Material: Stainless Steel
Material Grade: ASTM A403

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Tee, Equal Tee, LR, Welding Tee, Weldable
£ 331.45 331.45 GBP
DN125 (5" NB) SCHEDULE 10S A403 WELDED LONG RADIUS 45 DEG ELBOW SS 304
Outside Diameter (OD): 141.3mm
Wall Thickness: 3.40mm

Schedule: A403 Welded
Weight: 4.42kg

Material: Stainless Steel
Material Grade: 304

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Long Radius, 45°, LR, Bend, Weldable
£ 119.14 119.14 GBP
DN125 (5" NB) SCHEDULE 10S A403 WELDED LONG RADIUS 45 DEG ELBOW SS 316
Outside Diameter (OD): 141.3mm
Wall Thickness: 3.40mm

Schedule: A403 Welded
Weight: 4.42kg

Material: Stainless Steel
Material Grade: 316

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Long Radius, 45°, LR, Bend, Weldable
£ 180.46 180.46 GBP
DN125 (5" NB) SCHEDULE 10S A403 WELDED LONG RADIUS 90 DEG ELBOW SS 304
Outside Diameter (OD): 141.3mm
Wall Thickness: 3.40mm
Centre to Face: 190.0mm
Schedule: A403 Welded
Weight: 6.8kg

Material: Stainless Steel
Material Grade: 304

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Long Radius, 90°, LR, Bend, Weldable
£ 152.46 152.46 GBP
DN125 (5" NB) SCHEDULE 10S A403 WELDED LONG RADIUS 90 DEG ELBOW SS 316
Outside Diameter (OD): 141.3mm
Wall Thickness: 3.40mm
Centre to Face: 190.0mm
Schedule: A403 Welded
Weight: 6.8kg

Material: Stainless Steel
Material Grade: 316

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Long Radius, 90°, LR, Bend, Weldable
£ 234.08 234.08 GBP
DN125 (5" NB) SCHEDULE 10S A403 WELDED SHORT RADIUS 90 DEG ELBOW SS 304
Outside Diameter (OD): 141.3mm
Wall Thickness: 3.40mm
Centre to Face: 127.0mm
Schedule: A403 Welded
Weight: 4.42kg

Material: Stainless Steel
Material Grade: 304

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Short Radius, 90°, SR, Bend, Weldable
£ 119.14 119.14 GBP
DN125 (5" NB) SCHEDULE 10S A403 WELDED SHORT RADIUS 90 DEG ELBOW SS 316
Outside Diameter (OD): 141.3mm
Wall Thickness: 3.40mm
Centre to Face: 127.0mm
Schedule: A403 Welded
Weight: 4.42kg

Material: Stainless Steel
Material Grade: 316

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Short Radius, 90°, SR, Bend, Weldable
£ 180.46 180.46 GBP
DN125 (5" NB) SCHEDULE 10S ASA150 WELD NECK FLANGE SS 304
Outside diameter (O): 254.0mm
Flange thickness (C): 23.8mm
Hub length (X): 163.5mm
Neck height (A): 141.2mm
Pitch circle diameter (K): 215.9mm
Hub base diameter (Y): 88.9mm
Raised face height (RF): 15.5mm
Raised face diameter (R): 185.6mm
Number of bolt holes: 8
Material: 304 Stainless Steel
Rating: ASA 150
Type: Weld Neck Flange (ASME B16.5)

Standards: ASME B16.5
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
WN Flange, Welding Neck, ASA150, Stainless Steel, RF

Part of our Flanges and Flanged Connections Range
£ 529.20 529.2 GBP
DN125 (5" NB) SCHEDULE 10S ASA150 WELD NECK FLANGE SS 316
Outside diameter (O): 254.0mm
Flange thickness (C): 23.8mm
Hub length (X): 163.5mm
Neck height (A): 141.2mm
Pitch circle diameter (K): 215.9mm
Hub base diameter (Y): 88.9mm
Raised face height (RF): 15.5mm
Raised face diameter (R): 185.6mm
Number of bolt holes: 8
Material: 316 Stainless Steel
Rating: ASA 150
Type: Weld Neck Flange (ASME B16.5)

Standards: ASME B16.5
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
WN Flange, Welding Neck, ASA150, Stainless Steel, RF

Part of our Flanges and Flanged Connections Range
£ 493.99 493.99 GBP
DN125 (5" NB) SCHEDULE 10S ASA300 WELD NECK FLANGE SS 304
Outside diameter (O): 279.4mm
Flange thickness (C): 35.0mm
Hub height (X): 177.8mm
Length through hub (A): 141.2mm
Bolt circle diameter (K): 234.9mm
Overall height (Y): 98.5mm
Raised face thickness (RF): 1.5mm
Bore (B): 157.2mm
Number of bolt holes: 8
Bolt hole diameter: 22.3mm
Approx. weight: 15.2kg

Part of our Flanges and Flanged Connections Range
Contact us for pricing 0.0 GBP
DN125 (5" NB) SCHEDULE 10S ASA300 WELD NECK FLANGE SS 316
Outside diameter (O): 279.4mm
Flange thickness (C): 35.0mm
Hub height (X): 177.8mm
Length through hub (A): 141.2mm
Bolt circle diameter (K): 234.9mm
Overall height (Y): 98.5mm
Raised face thickness (RF): 1.5mm
Bore (B): 157.2mm
Number of bolt holes: 8
Bolt hole diameter: 22.3mm
Approx. weight: 15.2kg

Part of our Flanges and Flanged Connections Range
£ 1,256.85 1256.85 GBP
DN125 (5" NB) SCHEDULE 10s STAINLESS WELDED PIPE 304
Outside Diameter (OD): 141.3mm
Wall Thickness (WT): 3.40mm (Sch10)
Material: Stainless
Grade: 304
Standards: ASTM A312
Standard Length: 6 meter Random
Weight Per Meter: 11.74kg
Construction: Welded
Certification Available: 3.1 BS EN 10204 Material Certification

Note: Sold online only in 1 meter increments. Please get in touch for specific cutting requirements.

Part of our Stainless Pipes and Tubes Range
£ 328.30 328.3 GBP
DN125 (5" NB) SCHEDULE 10s STAINLESS WELDED PIPE 316
Outside Diameter (OD): 141.3mm
Wall Thickness (WT): 3.40mm (Sch10)
Material: Stainless
Grade: 316
Standards: ASTM A312
Standard Length: 6 meter Random
Weight Per Meter: 11.74kg
Construction: Welded
Certification Available: 3.1 BS EN 10204 Material Certification

Note: Sold online only in 1 meter increments. Please get in touch for specific cutting requirements.

Part of our Stainless Pipes and Tubes Range
£ 561.33 561.33 GBP
DN125 (5" NB) SCHEDULE 40S A403 SEAMLESS EQUAL TEE SS 304
Outside Diameter (OD): 141.3mm
Wall Thickness: 6.65mm
Centre to End: 123.8mm
Schedule: 40s
Weight: 8.98kg

Material: Stainless Steel
Material Grade: ASTM A403

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Tee, Equal Tee, LR, Welding Tee, Weldable
£ 415.24 415.24 GBP
DN125 (5" NB) SCHEDULE 40S A403 SEAMLESS EQUAL TEE SS 316
Outside Diameter (OD): 141.3mm
Wall Thickness: 6.65mm
Centre to End: 123.8mm
Schedule: 40s
Weight: 8.98kg

Material: Stainless Steel
Material Grade: ASTM A403

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Tee, Equal Tee, LR, Welding Tee, Weldable
£ 533.61 533.61 GBP
DN125 (5" NB) SCHEDULE 40S A403 SEAMLESS LONG RADIUS 90 DEG ELBOW SS 304
Outside Diameter (OD): 141.3mm
Wall Thickness: 6.65mm
Centre to Face: 190.0mm
Schedule: A403 Seamless
Weight: 6.8kg

Material: Stainless Steel
Material Grade: 304

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Long Radius, 90°, LR, Bend, Weldable
Contact us for pricing 0.0 GBP
DN125 (5" NB) SCHEDULE 40S A403 SEAMLESS LONG RADIUS 90 DEG ELBOW SS 316
Outside Diameter (OD): 141.3mm
Wall Thickness: 6.65mm
Centre to Face: 190.0mm
Schedule: A403 Seamless
Weight: 6.8kg

Material: Stainless Steel
Material Grade: 316

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Long Radius, 90°, LR, Bend, Weldable
Contact us for pricing 0.0 GBP
DN125 (5" NB) SCHEDULE 40S A403 SEAMLESS SHORT RADIUS 90 DEG ELBOW SS 304
Outside Diameter (OD): 141.3mm
Wall Thickness: 6.65mm
Centre to Face: 127.0mm
Schedule: A403 Seamless
Weight: 4.42kg

Material: Stainless Steel
Material Grade: 304

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Short Radius, 90°, SR, Bend, Weldable
Contact us for pricing 0.0 GBP
DN125 (5" NB) SCHEDULE 40S A403 SEAMLESS SHORT RADIUS 90 DEG ELBOW SS 316
Outside Diameter (OD): 141.3mm
Wall Thickness: 6.65mm
Centre to Face: 127.0mm
Schedule: A403 Seamless
Weight: 4.42kg

Material: Stainless Steel
Material Grade: 316

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Short Radius, 90°, SR, Bend, Weldable
Contact us for pricing 0.0 GBP
DN125 (5" NB) SCHEDULE 40S A403 WELDED EQUAL TEE SS 304
Outside Diameter (OD): 141.3mm
Wall Thickness: 6.65mm
Centre to End: 123.8mm
Schedule: 40s
Weight: 8.98kg

Material: Stainless Steel
Material Grade: ASTM A403

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Tee, Equal Tee, LR, Welding Tee, Weldable
£ 415.24 415.24 GBP
DN125 (5" NB) SCHEDULE 40S A403 WELDED EQUAL TEE SS 316
Outside Diameter (OD): 141.3mm
Wall Thickness: 6.65mm
Centre to End: 123.8mm
Schedule: 40s
Weight: 8.98kg

Material: Stainless Steel
Material Grade: ASTM A403

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Tee, Equal Tee, LR, Welding Tee, Weldable
£ 533.61 533.61 GBP
DN125 (5" NB) SCHEDULE 40S A403 WELDED LONG RADIUS 45 DEG ELBOW SS 304
Outside Diameter (OD): 141.3mm
Wall Thickness: 6.65mm

Schedule: A403 Welded
Weight: 4.42kg

Material: Stainless Steel
Material Grade: 304

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Long Radius, 45°, LR, Bend, Weldable
£ 269.78 269.78 GBP
DN125 (5" NB) SCHEDULE 40S A403 WELDED LONG RADIUS 45 DEG ELBOW SS 316
Outside Diameter (OD): 141.3mm
Wall Thickness: 6.65mm

Schedule: A403 Welded
Weight: 4.42kg

Material: Stainless Steel
Material Grade: 316

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Long Radius, 45°, LR, Bend, Weldable
£ 360.85 360.85 GBP
DN125 (5" NB) SCHEDULE 40S A403 WELDED LONG RADIUS 90 DEG ELBOW SS 304
Outside Diameter (OD): 141.3mm
Wall Thickness: 6.65mm
Centre to Face: 190.0mm
Schedule: A403 Welded
Weight: 6.8kg

Material: Stainless Steel
Material Grade: 304

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Long Radius, 90°, LR, Bend, Weldable
£ 342.16 342.16 GBP
DN125 (5" NB) SCHEDULE 40S A403 WELDED LONG RADIUS 90 DEG ELBOW SS 316
Outside Diameter (OD): 141.3mm
Wall Thickness: 6.65mm
Centre to Face: 190.0mm
Schedule: A403 Welded
Weight: 6.8kg

Material: Stainless Steel
Material Grade: 316

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Long Radius, 90°, LR, Bend, Weldable
£ 520.94 520.94 GBP
DN125 (5" NB) SCHEDULE 40S A403 WELDED SHORT RADIUS 90 DEG ELBOW SS 304
Outside Diameter (OD): 141.3mm
Wall Thickness: 6.65mm
Centre to Face: 127.0mm
Schedule: A403 Welded
Weight: 4.42kg

Material: Stainless Steel
Material Grade: 304

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Short Radius, 90°, SR, Bend, Weldable
£ 269.78 269.78 GBP
DN125 (5" NB) SCHEDULE 40S A403 WELDED SHORT RADIUS 90 DEG ELBOW SS 316
Outside Diameter (OD): 141.3mm
Wall Thickness: 6.65mm
Centre to Face: 127.0mm
Schedule: A403 Welded
Weight: 4.42kg

Material: Stainless Steel
Material Grade: 316

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Short Radius, 90°, SR, Bend, Weldable
£ 360.85 360.85 GBP
DN125 (5" NB) SCHEDULE 40S ASA150 WELD NECK FLANGE SS 304
Outside diameter (O): 254.0mm
Flange thickness (C): 23.8mm
Hub length (X): 163.5mm
Neck height (A): 141.2mm
Pitch circle diameter (K): 215.9mm
Hub base diameter (Y): 88.9mm
Raised face height (RF): 15.5mm
Raised face diameter (R): 185.6mm
Number of bolt holes: 8
Material: 304 Stainless Steel
Rating: ASA 150
Type: Weld Neck Flange (ASME B16.5)

Standards: ASME B16.5
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
WN Flange, Welding Neck, ASA150, Stainless Steel, RF

Part of our Flanges and Flanged Connections Range
£ 591.57 591.57 GBP
DN125 (5" NB) SCHEDULE 40S ASA150 WELD NECK FLANGE SS 316
Outside diameter (O): 254.0mm
Flange thickness (C): 23.8mm
Hub length (X): 163.5mm
Neck height (A): 141.2mm
Pitch circle diameter (K): 215.9mm
Hub base diameter (Y): 88.9mm
Raised face height (RF): 15.5mm
Raised face diameter (R): 185.6mm
Number of bolt holes: 8
Material: 316 Stainless Steel
Rating: ASA 150
Type: Weld Neck Flange (ASME B16.5)

Standards: ASME B16.5
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
WN Flange, Welding Neck, ASA150, Stainless Steel, RF

Part of our Flanges and Flanged Connections Range
£ 797.09 797.09 GBP
DN125 (5" NB) SCHEDULE 40S ASA300 WELD NECK FLANGE SS 304
Outside diameter (O): 279.4mm
Flange thickness (C): 35.0mm
Hub height (X): 177.8mm
Length through hub (A): 141.2mm
Bolt circle diameter (K): 234.9mm
Overall height (Y): 98.5mm
Raised face thickness (RF): 1.5mm
Bore (B): 157.2mm
Number of bolt holes: 8
Bolt hole diameter: 22.3mm
Approx. weight: 15.2kg

Part of our Flanges and Flanged Connections Range
Contact us for pricing 0.0 GBP
DN125 (5" NB) SCHEDULE 40S ASA300 WELD NECK FLANGE SS 316
Outside diameter (O): 279.4mm
Flange thickness (C): 35.0mm
Hub height (X): 177.8mm
Length through hub (A): 141.2mm
Bolt circle diameter (K): 234.9mm
Overall height (Y): 98.5mm
Raised face thickness (RF): 1.5mm
Bore (B): 157.2mm
Number of bolt holes: 8
Bolt hole diameter: 22.3mm
Approx. weight: 15.2kg

Part of our Flanges and Flanged Connections Range
£ 1,300.18 1300.18 GBP
DN125 (5" NB) SCHEDULE 40s STAINLESS WELDED PIPE 304
Outside Diameter (OD): 141.3mm
Wall Thickness (WT): 6.55mm (Sch40)
Material: Stainless
Grade: 304
Standards: ASTM A312
Standard Length: 6 meter Random
Weight Per Meter: 22.1kg
Construction: Welded
Certification Available: 3.1 BS EN 10204 Material Certification

Note: Sold online only in 1 meter increments. Please get in touch for specific cutting requirements.

Part of our Stainless Pipes and Tubes Range
£ 488.18 488.18 GBP
DN125 (5" NB) SCHEDULE 40s STAINLESS WELDED PIPE 316
Outside Diameter (OD): 141.3mm
Wall Thickness (WT): 6.55mm (Sch40)
Material: Stainless
Grade: 316
Standards: ASTM A312
Standard Length: 6 meters
Weight Per Meter: 22.1
Construction: Welded
Certification Available: 3.1 BS EN 10204 Material Certification

Note: Sold online only in 1 meter increments. Please get in touch for specific cutting requirements.



Part of our Stainless Pipes and Tubes Range
£ 881.58 881.58 GBP
DN125 (5" NB) SCHEDULE 80S ASA150 WELD NECK FLANGE SS 304
Outside diameter (O): 254.0mm
Flange thickness (C): 23.8mm
Hub length (X): 163.5mm
Neck height (A): 141.2mm
Pitch circle diameter (K): 215.9mm
Hub base diameter (Y): 88.9mm
Raised face height (RF): 15.5mm
Raised face diameter (R): 185.6mm
Number of bolt holes: 8
Material: Stainless Steel 304
Rating: ASA 150
Type: Weld Neck Flange (ASME B16.5)

Standards: ASME B16.5
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
WN Flange, Welding Neck, ASA150, Stainless Steel, RF

Part of our Flanges and Flanged Connections Range
Contact us for pricing 0.0 GBP
DN125 (5" NB) SCHEDULE 80S ASA150 WELD NECK FLANGE SS 316
Outside diameter (O): 254.0mm
Flange thickness (C): 23.8mm
Hub length (X): 163.5mm
Neck height (A): 141.2mm
Pitch circle diameter (K): 215.9mm
Hub base diameter (Y): 88.9mm
Raised face height (RF): 15.5mm
Raised face diameter (R): 185.6mm
Number of bolt holes: 8
Material: Stainless Steel 316
Rating: ASA 150
Type: Weld Neck Flange (ASME B16.5)

Standards: ASME B16.5
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
WN Flange, Welding Neck, ASA150, Stainless Steel, RF

Part of our Flanges and Flanged Connections Range
Contact us for pricing 0.0 GBP
DN125 (5" NB) SCHEDULE 80S ASA300 WELD NECK FLANGE SS 316
Outside diameter (O): 279.4mm
Flange thickness (C): 35.0mm
Hub height (X): 177.8mm
Length through hub (A): 141.2mm
Bolt circle diameter (K): 234.9mm
Overall height (Y): 98.5mm
Raised face thickness (RF): 1.5mm
Bore (B): 157.2mm
Number of bolt holes: 8
Bolt hole diameter: 22.3mm
Approx. weight: 15.2kg

Part of our Flanges and Flanged Connections Range
Contact us for pricing 0.0 GBP