Skip to Content

Integraflow Store 

  1. Products
  2. Stainless

Stainless

Nominal Bore Stainless Steel Pipework – 304 & 316 Grades

Integraflow offers a complete range of nominal bore stainless steel pipework systems in 304 and 316/L grades, including pipe, fittings, flanges, valves, and supports in welded, seamless, and threaded configurations, designed for durability, corrosion resistance, and compatibility across industrial, hygienic, and mechanical applications.

List 600
Sort By: Name (A-Z)

Stainless

DN15 (1/2" NB) SCHEDULE 40s STAINLESS SEAMLESS PIPE 304
Outside Diameter (OD): 21.3mm
Wall Thickness (WT): 2.77mm (Sch40)
Material: Stainless
Grade: 304
Standards: ASTM A312
Standard Length: 6 meters
Weight Per Meter: 1.29
Construction: Seamless
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.

Contact us for pricing 0.0 GBP
DN15 (1/2" NB) SCHEDULE 40s STAINLESS SEAMLESS PIPE 316
Outside Diameter (OD): 21.3mm
Wall Thickness (WT): 2.77mm
Material: Stainless
Grade: 316
Standards: ASTM A312
Standard Length: 6 meter Random
Weight Per Meter: 1.27kg
Construction: Seamless
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.
£ 58.80 58.8 GBP
DN15 (1/2" NB) SCHEDULE 40s STAINLESS WELDED PIPE 304
Outside Diameter (OD): 21.3mm
Wall Thickness (WT): 2.77mm (Sch40)
Material: Stainless
Grade: 304
Standards: ASTM A312
Standard Length: 6 meter Random
Weight Per Meter: 1.29kg
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.
£ 30.45 30.45 GBP
DN15 (1/2" NB) SCHEDULE 40s STAINLESS WELDED PIPE 316
Outside Diameter (OD): 21.3mm
Wall Thickness (WT): 2.77mm (Sch40)
Material: Stainless
Grade: 316
Standards: ASTM A312
Standard Length: 6 meters
Weight Per Meter: 1.29
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.

£ 56.21 56.21 GBP
DN15 (1/2" NB) SCHEDULE 80S ASA150 WELD NECK FLANGE SS 304
Outside diameter (O): 88.9mm
Flange thickness (C): 11.1mm
Hub length (X): 30.2mm
Neck height (A): 21.3mm
Pitch circle diameter (K): 60.4mm
Hub base diameter (Y): 47.7mm
Raised face height (RF): 15.7mm
Raised face diameter (R): 35.0mm
Number of bolt holes: 4
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
Contact us for pricing 0.0 GBP
DN15 (1/2" NB) SCHEDULE 80S ASA150 WELD NECK FLANGE SS 316
Outside diameter (O): 88.9mm
Flange thickness (C): 11.1mm
Hub length (X): 30.2mm
Neck height (A): 21.3mm
Pitch circle diameter (K): 60.4mm
Hub base diameter (Y): 47.7mm
Raised face height (RF): 15.7mm
Raised face diameter (R): 35.0mm
Number of bolt holes: 4
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
Contact us for pricing 0.0 GBP
DN15 (1/2" NB) SCHEDULE 80s STAINLESS SEAMLESS PIPE 304
Outside Diameter (OD): 21.3mm
Wall Thickness (WT): 3.73mm (Sch80)
Material: Stainless
Grade: 304
Standards: ASTM A312
Standard Length: 6 meter Random
Weight Per Meter: 1.62kg
Construction: Seamless
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.
Contact us for pricing 0.0 GBP
DN15 (1/2" NB) SCHEDULE 80s STAINLESS SEAMLESS PIPE 316
Outside Diameter (OD): 21.3mm
Wall Thickness (WT): 3.73mm (Sch80)
Material: Stainless
Grade: 316
Standards: ASTM A312
Standard Length: 6 meter Random
Weight Per Meter: 1.62kg
Construction: Seamless
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.
£ 95.76 95.76 GBP
DN15 (1/2" NB) SOCKET WELD 3000# FULL COUPLING SS 316
Both sides: 1/2" Socket Weld
Suits an outside diameter (OD) of: 21.3mm
Material: Stainless 316

Standards:
Nominal Bore, Socket Weld, High Pressure, 3000 psi, 3000 lb, Class 3000, Forged Stainless, ANSI B16.11/BS3799

Alternative terminology:
Forged, Stainless, Socket Weld, Coupling, Socket, Straight, Equal.
£ 25.97 25.97 GBP
DN15 (1/2" NB) SOCKET WELD 3PC FB BALL VALVE LEVER OP. SS 316
Threaded: 1/2" NB Socket Weld (SW)
Suits an outside diameter (OD) of: 21.3mm
Construction: 3 Piece
Body Material: 316 Stainless
Connection: Socket Weld
Bore: Full Bore
Internals: PTFE Seals

Applications:
Water, Oil & Gas* - Heating and Plumbing, HVAC, Gasses* and Compressed Air, Agricultural Irrigation, Fuel and Oils, Cooling, Marine, Fire Protection Sprinkler Systems, Food & Beverage.

Alternative terminology:
Isolation Valve, Lever Valve, Handle Valve, Shut off Valve, Quarter 1/4 Turn
£ 54.04 54.04 GBP
DN15 (1/2" NB) SW 150# ELBOW 45° SS 316
Thread: 1/2" SW (Socket Weld)
Suits an outside diameter (OD) of: 21.3mm
Material: Stainless
Grade: 316
Elbow Angle: 45° (Degree)

Standards:
Nominal Bore, Socket Weld, Elbow, 45°, 45 Deg, Weldable, Low Pressure, 150 psi
£ 12.74 12.74 GBP
DN15 (1/2" NB) SW 150# ELBOW 90° SS 316
Thread: 1/2" SW (Socket Weld)
Suits an outside diameter (OD) of: 21.3mm
Material: Stainless
Grade: 316
Elbow Angle: 90° (Degree)

Standards:
Nominal Bore, Socket Weld, Elbow, 90°, 90 Deg, Weldable, Low Pressure, 150 psi
£ 11.34 11.34 GBP
DN15 (1/2" NB) SW 150# (FXF) CONE SEAT UNION SS 316
Thread: 1/2" SW (Socket Weld)
Suits an outside diameter (OD) of: 21.3mm
Material: Stainless
Grade: 316
£ 22.33 22.33 GBP
DN15 (1/2" NB) SW 150# EQUAL FULL SOCKET SS 316
Connection: 1/2" SW (Socket Weld)
Suits an outside diameter (OD) of: 21.3mm
Material: Stainless
Grade: 316
£ 10.36 10.36 GBP
DN15 (1/2" NB) SW 150# EQUAL TEE SS 316
Thread: 1/2" SW (Socket Weld)
Suits an outside diameter (OD) of: 21.3mm
Material: Stainless Steel
Grade: 316
£ 15.40 15.4 GBP
DN15 (1/2" NB) SW 150# ROUND CAP SS 316
Thread: 1/2" SW (Socket Weld)
Suits an outside diameter (OD) of: 21.3mm
Material: Stainless
Grade: 316
Standards:
Nominal Bore, SW (Socket Weld), Weldable, Low Pressure, 150 psi

Alternative terminology:
SW Cap, Termination, Blanking Cap, Cap End
£ 6.02 6.02 GBP
DN15 (1/2" NB) SW 3000# EQUAL COUPLING SS 316
Connection: 1/2" SW
Suits an outside diameter (OD) of: 21.3mm
Material: Forged Stainless Steel
Grade: 316
Construction: Forged Stainless Steel
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Coupling, Socket, Straight, Connector, Stainless Steel
£ 28.49 28.49 GBP
DN15 (1/2" NB) SW 3000# EQUAL TEE SS 316
Connection: 1/2" SW (Socket Weld)
Suits an outside diameter (OD) of: 21.3mm
Material: Forged Stainless Steel
Grade: 316
Construction: Forged Stainless Steel
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Equal Tee, Stainless Steel
£ 73.99 73.99 GBP
DN15 (1/2" NB) SW 3000# HALF COUPLING SS 316
Connection: 1/2" SW (Socket Weld)
Suits an outside diameter (OD) of: 21.3mm
Material: Forged Stainless Steel
Grade: 316
Construction: Forged Stainless Steel
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Half Coupling, Half Socket, Straight, Connector, Stainless Steel
£ 27.16 27.16 GBP
DN15 (1/2" NB) SW 3000# ROUND CAP END SS 316
Connection: 1/2" SW (Socket Weld)
Suits an outside diameter (OD) of: 21.3mm
Material: Forged Stainless Steel
Grade: 316
Construction: Forged Stainless Steel
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Round Cap End, Blanking, Termination, Stainless Steel
£ 22.05 22.05 GBP
DN15 (1/2" NB) U-BOLT C.W NUTS SS 304 (A2)
Suits an outside diameter (OD) of: 21.3mm
Material: Stainless Steel 304 (A2)
Thread: M6
Comes with 2x Nuts
Contact us for pricing 0.0 GBP
DN15 (1/2" NB) U-BOLT C.W NUTS SS 316 (A4)
Suits an outside diameter (OD) of: 21.3mm
Material: Stainless Steel 316 (A4)
Thread: M6
Comes with 2x Nuts
Contact us for pricing 0.0 GBP
DN15 (1/2" NB) U-BOLT C.W NUTS SS A4/316
Suits an outside diameter (OD) of: 21.3mm
Material: Stainless
Thread: M6


Contact us for pricing 0.0 GBP
DN15 (1/2" NB) UN-BOSSED SPLIT BAND HANGER SS 304
Suits an outside diameter (OD) of: 21.3mm
Band width: 25mm
Band thickness: 3mm
Bolt Size: M6
Material: Stainless Steel
Grade: 304
Contact us for pricing 0.0 GBP
DN15 (½" NB) BSPT 3000# FXF ELBOW 45° SS 316
Thread: ½" BSPT Female
Suits an outside diameter (OD) of: 21.3mm
Material: Forged Stainless Steel
Grade: 316
Construction: Forged Stainless Steel
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Elbow, FXF, 45°, 45 Degree, Stainless Steel
£ 56.49 56.49 GBP
DN15 (½" NB) BSPT 3000# FXF ELBOW 90° SS 316
Thread: ½" BSPT Female
Suits an outside diameter (OD) of: 21.3mm
Material: Forged Stainless Steel
Grade: 316
Construction: Forged Stainless Steel
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Elbow, FXF, 90°, 90 Degree, Stainless Steel
£ 57.40 57.4 GBP
DN15 (½" NB) NPT 3000# FXF ELBOW 45° SS 316
Thread: ½" NPT Female
Suits an outside diameter (OD) of: 21.3mm
Material: Forged Stainless Steel
Grade: 316
Construction: Forged Stainless Steel
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Elbow, FXF, 45°, 45 Degree, Stainless Steel
£ 56.49 56.49 GBP
DN15 (½" NB) NPT 3000# FXF ELBOW 90° SS 316
Thread: ½" NPT Female
Suits an outside diameter (OD) of: 21.3mm
Material: Forged Stainless Steel
Grade: 316
Construction: Forged Stainless Steel
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Elbow, FXF, 90°, 90 Degree, Stainless Steel
£ 59.71 59.71 GBP
DN15 (½" NB) SCHEDULE 10S A403 SEAMLESS EQUAL TEE SS 304
Outside Diameter (OD): 21.3mm
Wall Thickness: 2.78mm
Centre to End: 25.4mm
Schedule: 10S
Weight: 0.11kg

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
Contact us for pricing 0.0 GBP
DN15 (½" NB) SCHEDULE 10S A403 SEAMLESS EQUAL TEE SS 316
Outside Diameter (OD): 21.3mm
Wall Thickness: 2.78mm
Centre to End: 25.4mm
Schedule: 10S
Weight: 0.11kg

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
Contact us for pricing 0.0 GBP
DN15 (½" NB) SCHEDULE 10S A403 SEAMLESS LONG RADIUS 90 DEG ELBOW SS 304
Outside Diameter (OD): 21.3mm
Wall Thickness: 2.78mm
Centre to Face: 38.1mm
Schedule: A403 Seamless
Weight: 0.08kg

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
DN15 (½" NB) SCHEDULE 10S A403 SEAMLESS LONG RADIUS 90 DEG ELBOW SS 316
Outside Diameter (OD): 21.3mm
Wall Thickness: 2.78mm
Centre to Face: 38.1mm
Schedule: A403 Seamless
Weight: 0.08kg

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
DN15 (½" NB) SCHEDULE 10S A403 WELDED EQUAL TEE SS 304
Outside Diameter (OD): 21.3mm
Wall Thickness: 2.78mm
Centre to End: 25.4mm
Schedule: 10S
Weight: 0.11kg

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
£ 14.70 14.7 GBP
DN15 (½" NB) SCHEDULE 10S A403 WELDED EQUAL TEE SS 316
Outside Diameter (OD): 21.3mm
Wall Thickness: 2.78mm
Centre to End: 25.4mm
Schedule: 10S
Weight: 0.11kg

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
£ 26.18 26.18 GBP
DN15 (½" NB) SCHEDULE 10S A403 WELDED LONG RADIUS 90 DEG ELBOW SS 304
Outside Diameter (OD): 21.3mm
Wall Thickness: 2.78mm
Centre to Face: 38.1mm
Schedule: A403 Welded
Weight: 0.08kg

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
£ 7.70 7.7 GBP
DN15 (½" NB) SCHEDULE 10S A403 WELDED LONG RADIUS 90 DEG ELBOW SS 316
Outside Diameter (OD): 21.3mm
Wall Thickness: 2.78mm
Centre to Face: 38.1mm
Schedule: A403 Welded
Weight: 0.08kg

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
£ 10.29 10.29 GBP
DN15 (½" NB) SCHEDULE 40S A403 SEAMLESS EQUAL TEE SS 304
Outside Diameter (OD): 21.3mm
Wall Thickness: 2.78mm
Centre to End: 25.4mm
Schedule: 40s
Weight: 0.11kg

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
£ 24.22 24.22 GBP
DN15 (½" NB) SCHEDULE 40S A403 SEAMLESS EQUAL TEE SS 316
Outside Diameter (OD): 21.3mm
Wall Thickness: 2.78mm
Centre to End: 25.4mm
Schedule: 40s
Weight: 0.11kg

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
£ 26.88 26.88 GBP
DN15 (½" NB) SCHEDULE 40S A403 SEAMLESS LONG RADIUS 90 DEG ELBOW SS 304
Outside Diameter (OD): 21.3mm
Wall Thickness: 2.78mm
Centre to Face: 38.1mm
Schedule: A403 Seamless
Weight: 0.08kg

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
DN15 (½" NB) SCHEDULE 40S A403 SEAMLESS LONG RADIUS 90 DEG ELBOW SS 316
Outside Diameter (OD): 21.3mm
Wall Thickness: 2.78mm
Centre to Face: 38.1mm
Schedule: A403 Seamless
Weight: 0.08kg

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