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Mild Steel

Nominal Bore Carbon Steel Pipework – A106, API 5L, EN10255

Integraflow supplies a full range of nominal bore carbon steel pipework systems, including pipe, fittings, flanges, valves, and supports in A106 Grade BAPI 5L, and EN10255 specifications, available in seamless and welded construction with threaded, butt-weld, and flanged ends, suitable for high-pressure, industrial, and mechanical service applications.

DN25 (1" NB) NPT SCH80 FS PIPE NIPPLE T.B.E (4" LONG) A105N
Threaded: 3/4" NPT Female
Suits an outside diameter (OD) of: 33.4mm
Material: Forged Steel
Grade: A105N
Construction: Forged
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Full Sock, Equal TBE, Pipe Nipple, Carbon Steel
Contact us for pricing 0.0 GBP
DN25 (1" NB) PN10/PN16/PN25/PN40 RF BSPP THREADED FLANGE S235JR BLACK
Flange outside diameter: 115mm (D)
Flange thickness: 18mm (C2)
Pitch Circle Diameter (PCD): 85mm (K)
Flange hub height: 28mm (H1)
Raised Face Height: 2mm (f1)
BSPP Thread: 1"
Bolt Holes: 4 off M12 bolts
Material: Mild Steel
Grade: S235 JR
Finish: Black
Standards: EN 1092-1
Pressure Rating: PN16
Flange Face: Raised Face
Certification Available: 2.1 BS EN 10204 Material Certification

Alternative terminology:
Threaded Flange, Screwed Flange, BSPP, Mild Steel, Carbon Steel, Flat Faced, PN16

Part of our Flanges and Flanged Connections Range
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DN25 (1" NB) PN10/PN16/PN25/PN40 RF BSPP THREADED FLANGE S235JR GALVANISED
Flange outside diameter: 115mm (D)
Flange thickness: 18mm (C2)
Pitch Circle Diameter (PCD): 85mm (K)
Flange hub height: 28mm (H1)
Raised Face Height: 2mm (f1)
BSPP Thread: 1"
Bolt Holes: 4 off M12 bolts
Material: Mild Steel
Grade: S235 JR
Finish: Galvanised
Standards: EN 1092-1
Pressure Rating: PN16
Flange Face: Raised Face
Certification Available: 2.1 BS EN 10204 Material Certification

Alternative terminology:
Threaded Flange, Screwed Flange, BSPP, Mild Steel, Carbon Steel, Flat Faced, PN16

Part of our Flanges and Flanged Connections Range
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DN25 (1" NB) PN16 2PC FLANGED DUCTILE IRON BALL VALVE DIRECT MOUND WITH RED LEVER
1" Ductile Iron Ball Valve – Direct Mount – Flanged PN16

Face to face: 125mm

Direct mount with lever


Flanged PN16 connections with ISO 5211 direct mount interface.
Ductile iron body with brass ball and stem.
Fitted with RPTFE seats and NBR O-rings.
Steel lever operated.

Face to face: DIN 3202 F4.
Pressure rating: PN16.
Temperature range: -10°C to 100°C.

Part of our Isolation and Valves Range
£ 409.08 409.08 GBP
DN25 (1" NB) PN16 2PC FLANGED DUCTILE IRON BALL VALVE EN331 GAS APPROVED YELLOW LEVER
1" Ductile Iron Ball Valve – EN331 Gas Approved – Flanged PN16

Face to face: 125mm

Suitable for gas service.
EN331 approved design.

Flanged PN16 connections with ISO 5211 direct mount interface.
Ductile iron body with brass ball and stem.
Fitted with RPTFE seats and NBR O-rings.
Steel lever operated.

Face to face: DIN 3202 F4.
Pressure rating: PN16.
Temperature range: -10°C to 70°C.

Part of our Isolation and Valves Range
£ 501.13 501.13 GBP
DN25 (1" NB) PN16 LUGGED & TAPPED LEVER OP. BUTTERFLY VALVE (EPDM/SS) DUCTILE IRON
Suits Flange Size: DN25 PN10 & PN16
Valve Type: Fully Lugged Butterfly Valve
Mounting Standard: ISO 5211 Direct Mount
Body Material: Epoxy Coated Ductile Iron
Disc Material: 316 Stainless Steel
Liner Material: EPDM
Operation: Locking Lever
Pressure Rating: PN16
Temperature Range: -10°C to +120°C
Certification: Complies with 97/23/CE (PED) Directive CE 1115
Flange Suitability: PN10/16
Note: Gearbox operation available for all sizes – please enquire.

Part of our Isolation and Valves Range
£ 267.12 267.12 GBP
DN25 (1" NB) PN6 FF BLIND FLANGE CS S235 JR
Flange overall diameter: 100mm (D)
PCD: 75mm (K)
Bolt Holes: 4 off 11mm diameter (L)
Flange Thickness: 14mm (C4)
Diameter of Flat Face (RF): 62mm (D1)
Height of Flat Face: 2mm (F1)
Material: Mild Steel
Grade: S235 JR
Standards: EN1092-1
Flange Face: Flat Face
Certification Available: 2.1 BS EN 10204 Material Certification

Alternative terminology:
Blank Flange, Blind, Mild Steel, Carbon Steel, Flat Faced, FF Blind

Part of our Flanges and Flanged Connections Range
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DN25 (1" NB) PN6 RF BSPP THREADED FLANGE S235JR BLACK
Flange outside diameter: 100mm (D)
Flange thickness: 14mm (C2)
Pitch Circle Diameter (PCD): 75mm (K)
Flange hub height: 24mm (H1)
Raised Face Height: 2mm (f1)
BSPP Thread: 1"
Bolt Holes: 4 off M10 bolts
Material: Mild Steel
Grade: S235 JR
Finish: Black
Standards: EN 1092-1
Pressure Rating: PN6
Flange Face: Raised Face
Certification Available: 2.1 BS EN 10204 Material Certification

Alternative terminology:
Threaded Flange, Screwed Flange, BSPP, Mild Steel, Carbon Steel, Flat Faced, PN6

Part of our Flanges and Flanged Connections Range
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DN25 (1" NB) PN6 RF BSPP THREADED FLANGE S235JR GALVANISED
Flange outside diameter: 100mm (D)
Flange thickness: 14mm (C2)
Pitch Circle Diameter (PCD): 75mm (K)
Flange hub height: 24mm (H1)
Raised Face Height: 2mm (f1)
BSPP Thread: 1"
Bolt Holes: 4 off M10 bolts
Material: Mild Steel
Grade: S235 JR
Finish: Galvanised
Standards: EN 1092-1
Pressure Rating: PN6
Flange Face: Raised Face
Certification Available: 2.1 BS EN 10204 Material Certification

Alternative terminology:
Threaded Flange, Screwed Flange, BSPP, Mild Steel, Carbon Steel, Flat Faced, PN6

Part of our Flanges and Flanged Connections Range
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DN25 (1" NB) PN6 RF SLIP ON PLATE FLANGE CS S235 JR
Flange inside diameter of: 34.5mm (B1)
Flange overall diameter: 100mm (D)
PCD: 75mm (K)
Bolt Holes: 4 off 11mm diameter (L)
Flange Thickness: 14mm (C1)
Diameter of Raised Face (RF): 62mm (D1)
Height of raised face: 2mm (F1)
Material: Mild Steel
Grade: S235 JR
Standards: EN1092-1
Flange Face: Raised Face
Certification Available: 2.1 BS EN 10204 Material Certification

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

Part of our Flanges and Flanged Connections Range
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DN25 (1" NB) SCH40/STD ASA300 RF WELD NECK FLANGE CS A105N (EUROPEAN ORIGIN)
Suits an outside diameter (OD) of: 33.4mm
Material: CS
Grade: A105 N
Standards: ANSI / ASA300
Flange Face: Raised
Bolt Holes: 16 off 19mm Ø
PCD: 88.9mm
Flange Diameter: 123.9mm
Flange Thickness: 17.5mm
Certification Available: 3.1 Material Certification
Origin: European (EU)

Alternative terminology:
Raised Face, Weld Neck, Weld on, Mild Steel, Carbon Steel

Part of our Flanges and Flanged Connections Range
£ 210.00 210.0 GBP
DN25 (1" NB) SCHEDULE 160 A106 GR.B SEAMLESS PIPE
Outside Diameter (OD): 33.4mm
Wall Thickness (WT): 6.35mm
Material: Carbon Steel Pipe
Grade: A106 B / P265GH
Standards: ASTM / ANSI Schedule 160
Random Length: 5.8 to 7.5 meters
Weight Per Meter: 4.24 kg
Construction: Seamless
Certification Available: 3.1 BS EN 10204 Material Certification

Part of our Pipes and Tubes Range

Part of our Stainless Pipes and Tubes Range
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DN25 (1" NB) SCHEDULE 40 / STD A234 WPB CAP
Outside Diameter (OD): 33.4mm
Wall Thickness: 3.38mm
Length: 38.1mm
Schedule: STD
Weight: 0.1kg

Material: Mild Steel
Material Grade: ASTM A234 WPB
Finish: Black Varnished (Self Colour or Shotblasting on request)
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Cap, End Cap, Cap End, Weldable Cap
Contact us for pricing 0.0 GBP
DN25 (1" NB) SCHEDULE 40 / STD A234 WPB EQUAL TEE
Outside Diameter (OD): 33.4mm
Wall Thickness: 3.38mm
Centre to End: 38.1mm
Schedule: STD
Weight: 0.35kg

Material: Mild Steel
Material Grade: ASTM A234 WPB
Finish: Black Varnished (Self Colour or Shotblasting on request)
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Tee, Equal Tee, LR, Welding Tee, Weldable
£ 11.34 11.34 GBP
DN25 (1" NB) SCHEDULE 40 / STD A234 WPB LONG RADIUS 45 DEG ELBOW
Outside Diameter (OD): 33.4mm
Wall Thickness: 3.38mm
Centre to Face: 22.2mm
Schedule: STD
Weight: 0.09kg

Material: Mild Steel
Material Grade: ASTM A234 WPB
Finish: Black Varnished (Self Colour or Shotblasting on request)
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Long Radius, 45°, LR, Bend, Weldable
£ 2.31 2.31 GBP
DN25 (1" NB) SCHEDULE 40 / STD A234 WPB SHORT RADIUS 90 DEG ELBOW
Outside Diameter (OD): 33.4mm
Wall Thickness: 3.38mm
Centre to Face: 25.4mm
Schedule: STD
Weight: 0.1kg

Material: Mild Steel
Material Grade: ASTM A234 WPB
Finish: Black Varnished (Self Colour or Shotblasting on request)
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Short Radius, 90°, SR, Bend, Weldable
£ 3.71 3.71 GBP
DN25 (1" NB) SCHEDULE 40 / STD WT ASA150 WELD NECK FLANGE CS A105N
Outside diameter (O): 107.9mm
Flange thickness (C): 14.2mm
Hub length (X): 49.2mm
Neck height (A): 33.5mm
Pitch circle diameter (K): 79.2mm
Hub base diameter (Y): 55.6mm
Raised face height (RF): 15.5mm
Raised face diameter (R): 50.8mm
Number of bolt holes: 4
Material: A105N
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, Carbon Steel, RF

Part of our Flanges and Flanged Connections Range
Contact us for pricing 0.0 GBP
DN25 (1" NB) SCHEDULE 40/ STD A234 WPB LONG RADIUS 90 DEG ELBOW
Outside Diameter (OD): 33.4mm
Wall Thickness: 3.38mm
Centre to Face: 38.1mm
Schedule: STD
Weight: 0.15kg

Material: Mild Steel
Material Grade: ASTM A234 WPB
Finish: Black Varnished (Self Colour or Shotblasting on request)
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Long Radius, 90°, LR, Bend, Weldable
£ 2.52 2.52 GBP
DN25 (1" NB) SCHEDULE 40/STD A106 GR.B SEAMLESS PIPE
Outside Diameter (OD): 33.4mm
Wall Thickness (WT): 3.38mm
Material: Carbon Steel Pipe
Grade: A106 B / P265GH
Standards: ASTM / ANSI Schedule 40 (Standard Weight)
Random Length: 5.8 to 7.5 meters
Weight Per Meter: 2.5 kg
Construction: Seamless
Certification Available: 3.1 BS EN 10204 Material Certification

Part of our Pipes and Tubes Range

Part of our Stainless Pipes and Tubes Range
£ 27.65 27.65 GBP
DN25 (1" NB) SCHEDULE 40/STD A106 GR.B SEAMLESS PIPE (EUROPEAN ORIGIN)
Outside Diameter (OD): 33.4mm
Wall Thickness (WT): 3.38mm
Material: Carbon Steel Pipe
Grade: A106 B / P265GH
Standards: ASTM / ANSI Schedule 40 (Standard Weight)
Random Length: 5.8 to 7.5 meters
Weight Per Meter: 2.5 kg
Construction: Seamless
Certification Available: 3.1 BS EN 10204 Material Certification
Origin: European (EU)

Part of our Pipes and Tubes Range

Part of our Stainless Pipes and Tubes Range
£ 70.00 70.0 GBP
DN25 (1" NB) SCHEDULE 40/STD A234 WPB CAP END
Outside Diameter (OD): 33.4mm
Wall Thickness (WT): 3.38mm
Material: Carbon Steel
Grade: A234 WPB
Standards: ANSI B16.9, Schedule 40 / Standard Weight
Length: 47.6mm
Ends: Buttweld
Construction: Seamless
Certification Available: 3.1 BS EN 10204 Material Certification

Applications:
Water, Oil & Gas / Petrochem, Steam, Fuels, Condensate, HVAC, Marine, Water & Waste Water, Mining, Construction, Power Generation (Energy), Waste to Energy (ERF)

Alternative terminology:
Butt Weld, Cap end, End Cap, Blank Cap, Termincation Cap, Stop End
Contact us for pricing 0.0 GBP
DN25 (1" NB) SCHEDULE 80 / XS A234 WPB CAP
Outside Diameter (OD): 33.4mm
Wall Thickness: 4.55mm
Length: 38.1mm
Schedule: XS
Weight: 0.13kg

Material: Mild Steel
Material Grade: ASTM A234 WPB
Finish: Black Varnished (Self Colour or Shotblasting on request)
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Cap, End Cap, Cap End, Weldable Cap
Contact us for pricing 0.0 GBP
DN25 (1" NB) SCHEDULE 80 / XS A234 WPB EQUAL TEE
Outside Diameter (OD): 33.4mm
Wall Thickness: 4.55mm
Centre to End: 38.1mm
Schedule: XS
Weight: 0.42kg

Material: Mild Steel
Material Grade: ASTM A234 WPB
Finish: Black Varnished (Self Colour or Shotblasting on request)
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Tee, Equal Tee, LR, Welding Tee, Weldable
£ 13.58 13.58 GBP
DN25 (1" NB) SCHEDULE 80 / XS A234 WPB LONG RADIUS 45 DEG ELBOW
Outside Diameter (OD): 33.4mm
Wall Thickness: 4.55mm
Centre to Face: 22.2mm
Schedule: XS
Weight: 0.11kg

Material: Mild Steel
Material Grade: ASTM A234 WPB
Finish: Black Varnished (Self Colour or Shotblasting on request)
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Long Radius, 45°, LR, Bend, Weldable
£ 3.08 3.08 GBP
DN25 (1" NB) SCHEDULE 80 / XS A234 WPB LONG RADIUS 90 DEG ELBOW
Outside Diameter (OD): 33.4mm
Wall Thickness: 4.55mm
Centre to Face: 38.1mm
Schedule: XS
Weight: 0.19kg

Material: Mild Steel
Material Grade: ASTM A234 WPB
Finish: Black Varnished (Self Colour or Shotblasting on request)
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Long Radius, 90°, LR, Bend, Weldable
£ 3.36 3.36 GBP
DN25 (1" NB) SCHEDULE 80 / XS A234 WPB SHORT RADIUS 90 DEG ELBOW
Outside Diameter (OD): 33.4mm
Wall Thickness: 4.55mm
Centre to Face: 25.4mm
Schedule: XS
Weight: 0.13kg

Material: Mild Steel
Material Grade: ASTM A234 WPB
Finish: Black Varnished (Self Colour or Shotblasting on request)
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Short Radius, 90°, SR, Bend, Weldable
£ 5.88 5.88 GBP
DN25 (1" NB) SCHEDULE 80 / XS ASA150 WELD NECK FLANGE CS A105N
Outside diameter (O): 107.9mm
Flange thickness (C): 14.2mm
Hub length (X): 49.2mm
Neck height (A): 33.5mm
Pitch circle diameter (K): 79.2mm
Hub base diameter (Y): 55.6mm
Raised face height (RF): 15.5mm
Raised face diameter (R): 50.8mm
Number of bolt holes: 4
Material: A105N
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, Carbon Steel, RF

Part of our Flanges and Flanged Connections Range
Contact us for pricing 0.0 GBP
DN25 (1" NB) SCHEDULE 80/XS A106 GR.B SEAMLESS PIPE
Outside Diameter (OD): 33.4mm
Wall Thickness (WT): 4.55mm
Material: Carbon Steel Pipe
Grade: A106 B / P265GH
Standards: ASTM / ANSI Schedule 80 (Extra Strong)
Random Length: 5.8 to 7.5 meters
Weight Per Meter: 3.24 kg
Construction: Seamless
Certification Available: 3.1 BS EN 10204 Material Certification

Part of our Pipes and Tubes Range

Part of our Stainless Pipes and Tubes Range
£ 31.99 31.99 GBP
DN25 (1" NB) SCHEDULE 80/XS A106 GR.B SEAMLESS PIPE (NPT) HOT DIP GALVANISED
Outside Diameter (OD): 33.4mm
Wall Thickness (WT): 4.55mm
Material: Carbon Steel Pipe
Grade: A106 B / P265GH
Standards: ASTM / ANSI Schedule 80 (Extra Strong)
Random Length: 5.8 to 7.5 meters
Weight Per Meter: 3.24 kg
Construction: Seamless
Finish: Hot Dip Galvanised
Certification Available: 3.1 BS EN 10204 Material Certification

Part of our Pipes and Tubes Range

Part of our Stainless Pipes and Tubes Range
£ 86.17 86.17 GBP
DN25 (1" NB) SOCKET WELD 3000# FS ELBOW 90° A105N
Socket Weld: 1" NB
Suits an outside diameter (OD) of: 33.4mm
Degree: 90°
Material: Forged Steel
Grade: A105N
Construction: Forged
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Elbow 90, Socket Weld, SW, Carbon Steel
£ 20.30 20.3 GBP
DN25 (1" NB) SW 3000# FS CAP END A105N
Connection: 3/4" Socket Weld (SW) Female
Suits an outside diameter (OD) of: 33.4mm
Material: Forged Steel
Grade: A105N
Construction: Forged
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Blanking Cap End, Carbon Steel
Contact us for pricing 0.0 GBP
DN25 (1" NB) SW 3000# FS ELBOW 90° A105N
Connection: ¾" Socket Weld (SW) Female
Suits an outside diameter (OD) of: 33.4mm
Material: Forged Steel
Grade: A105N
Construction: Forged
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Elbow, 90°, 90 Degree, Carbon Steel
Contact us for pricing 0.0 GBP
DN25 (1" NB) SW 3000# FS EQUAL TEE A105N
Connection: 3/4" Socket Weld (SW) Female
Suits an outside diameter (OD) of: 33.4mm
Material: Forged Steel
Grade: A105N
Construction: Forged
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Equal Tee, Carbon Steel
Contact us for pricing 0.0 GBP
DN25 (1" NB) SW 3000# FS UNION A105N
Connection: 3/4" Socket Weld (SW) Female
Suits an outside diameter (OD) of: 33.4mm
Material: Forged Steel
Grade: A105N
Construction: Forged
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Union, Carbon Steel
Contact us for pricing 0.0 GBP
DN25 (1" NB) SW 3000# FS COUPLING A105N
Connection: 3/4" Socket Weld (SW) Female
Suits an outside diameter (OD) of: 33.4mm
Material: Forged Steel
Grade: A105N
Construction: Forged
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Full Sock, Equal Socket, Coupling, Carbon Steel
Contact us for pricing 0.0 GBP
DN25 (1" NB) SW 3000# FS HALF COUPLING A105N
Connection: 3/4" Socket Weld (SW) Female
Suits an outside diameter (OD) of: 33.4mm
Material: Forged Steel
Grade: A105N
Construction: Forged
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Equal Half Socket, Half Coupling, Carbon Steel
Contact us for pricing 0.0 GBP
DN25 (1" NB) U-BOLT C.W NUTS BZP
Suits an outside diameter (OD) of: 33.4mm
Material: MS Zinc Plated (BZP)
Thread: M6
Comes with 2x Nuts
Contact us for pricing 0.0 GBP
DN25 (1" NB) U-BOLT C.W NUTS GALV
Suits an outside diameter (OD) of: 33.4mm
Material: MS
Thread: M16
Thread Length: 30mm
Inside legs: 35mm
Depth: 60mm
£ 3.50 3.5 GBP
DN25 (1" NB) U-BOLT C.W NUTS GALVANISED
Suits an outside diameter (OD) of: 33.4mm
Material: Mild Steel (Galvanised))
Thread: M6
Comes with 2x Nuts
Contact us for pricing 0.0 GBP
DN25 (1" NB) UN-BOSSED SPLIT BAND HANGER ZP
Suits an outside diameter (OD) of: 33.4mm
Band width: 25mm
Band thickness: 3mm
Bolt Size: M6
Material: MS
Finish: Zinc Plated
£ 6.51 6.51 GBP