Welding Neck Flange Manufacturer and Exporter

A leading manufacturer, exporter, suppliers & stock holder of Welding Neck Flange & we provide a comprehensive range of Welding Neck Flange.

We manufacture Welding Neck Flange in India for export all around the world.

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We can offer a comprehensive range of Welding Neck Flange for the right technical solution. MD Exports LLP manufacture & export wide selections of ANSI B16.5 Welding Neck Flange & ASME B16.47 Welding Neck Flange at most attractive price as per customer requirements, we can also manufacture Welding Neck Flange in ASTM/ASME/ANSI grades as per our customer budget, we enjoy the reputation supplying Welding Neck Flange at cheapest in steel industries around the globe.

ANSI ASME B16.47 Ser.A
» 150lb Ser.A (MSS SP44) WN
» 300lb Ser.A (MSS SP44) WN
» 600lb Ser.A (MSS SP44) WN
» 900lb Ser.A (MSS SP44) WN

ANSI ASME B16.47 Ser.B
» 75lb Ser.B (API)WN Flange
» 150lb Ser.B (API)WN Flange
» 300lb Ser.B (API)WN Flange
» 600lb Ser.B (API)WN Flange
» 900lb Ser.B (API)WN Flange

Welding Neck Flange Description

Other Name: Weld Neck Flange, WN Flange, WNRF Flange, Welding Neck Flange

Weld neck pipe flanges attach to the pipe by welding the pipe to the neck of the pipe flange.

Standard: ANSI, BS4504, BS10, DIN, UNI, EN1092-1, SABS1123, GOST12821
Size: DN15-DN2000
Material: Carbon Steel, Stainless Steel & High Nickel Alloys
Supply Ability: 1500Ton/Month
Process: Forging, Forged
Packing: Seaworthy Packing
Payment Terms: T/T, L/C

WNRF standards include:

1) ANSI B16.5, ASME B16.5, ASA B16.5, WELD NECK FLANGE, WNRF FLANGE, WELDING NECK FLANGE, material carbon steel A105, A350, A36 etc, stainless steel A182 etc, size 1/2" - 80", pressure class 150 to class 2500.

2) BS4504, WELD NECK FLANGE, WNRF FLANGE, WELDING NECK FLANGE, material carbon steel A105, C22.8, RST37.2, S235JR, P235GH, P245GH, P250GH, P265GH, Q235 etc, size DN15-DN2000, NB15-NB2000, pressure class PN6-PN100, T6/5, T10/5, T16/5, T25/5, T40/5 etc.

3) BS10 Table D, Table E, WELD NECK FLANGE, WNRF FLANGE, WELDING NECK FLANGE, material carbon steel A105, C22.8, RST37.2, S235JR, P235GH, P245GH, P250GH, P265GH, Q235 etc, size DN15-DN2000, NB15-NB2000. 

4) DIN, UNI, EN1092-1, WELD NECK FLANGE, WNRF FLANGE, WELDING NECK FLANGE, material carbon steel A105, C22.8, RST37.2, S235JR, P235GH, P245GH, P250GH, P265GH, Q235 etc, size DN15-DN2000, pressure class PN6, PN10, PN16, PN25, PN40.

5) SABS1123, SANS1123, WELD NECK FLANGE, WNRF FLANGE, WELDING NECK FLANGE, material A105, Q235 carbon steel, mild steel, size NB15-NB2000, Class T600/5, T1000/5, T1600/5, T2500/5, T4000/5.

6) GOST 12821 FLANGE, WELD NECK FLANGE, WNRF FLANGE, WELDING NECK FLANGE, material carbon steel A105, C22.8, RST37.2, S235JR, P235GH, P245GH, P250GH, P265GH, Q235 etc, size DN15-DN2000, pressure class PN0.6Mpa, PN1.0Mpa, PN1.6Mpa, PN2.5Mpa, PN4.0Mpa. 

7) JIS B2220, KS B1503, SWELD NECK FLANGE, WNRF FLANGE, WELDING NECK FLANGE, material carbon steel SS400, SF440A, SF390A, size 15A-2000A, Pressure class 5K, 10K, 16K, 20K, 30K, 40K

Welding Neck Flange Dimensions & Tolerances

Dimensions Weld Neck Flanges ASME B16.5

weldingneck_flange_dimn

NPS 1/2 - O.D. 21.3

Class 150 300 400 600 900 1500 2500
Diameter - A 30 38 38 38 38 38 43
Diameter - D 90 95 95 95 120 120 135
Thickness - B 9.6 12.7 14.3 14.3 22.3 22.3 30.2
11.2 14.3 20.7 20.7 28.7 28.7 36.6
Diameter - G 35.1 35.1 35.1 35.1 35.1 35.1 35.1
Diameter - K 60.3 66.7 66.7 66.7 82.6 82.6 88.9
Height - H 46 51 52 52 60 60 73
47.6 52.6 58.4 58.4 66.4 66.4 79.4
Bolt Holes 4 4 4 4 4 4 4
Diameter - L 15.9 15.9 15.9 15.9 22.2 22.2 22.2
Stud Bolts Diameter x Length
Diameter (in) 1/2 1/2 1/2 1/2 3/4 3/4 3/4
Length (mm) 55 65 75 75 110 110 120
1/2 3/4 1 1¼ 1½ 2 2½ 3 3½ 4 5 6 8 10 12 14 16 18 20 24

--------------------------------------------------------------------------------- > NPS <------------------------------------------------------------------------------

Dimensional Tolerances of Welding Neck Flanges ASME B16.5

Outside Diameter
≤ 24 = 1.6 mm | > 24 = ± 3.2 mm		 Inside Diameter
≤ 10 = ± 0.8 mm | 12 thru 18 = 1.6 mm | ≥ 20 = + 3.2 mm / - 1.6 mm
Diameter of Contact Face
1.6 mm Raised Face = ± 0.8 mm
6.35 mm Raised Face, Tongue & Groove / Male-Female = ± 0.4 mm		 Diameter of Hub at Base
≤ 24 = 1.6 mm | > 24 = ± 3.2 mm
Diameter of Hub at Point of Welding
≤ 5 = + 2.4 mm / - 0.8 mm | ≥ 6 = + 4.0 mm / - 0.8 mm		 Drilling
Bolt Circle = 1.6 mm | Bolt Hole Spacing = ± 0.8 mm
Eccentricity of Bolt Circle with Respect to Facing
≤ 2½ = 0.8 mm max. | ≥ 3 = 1.6 mm max
Thickness
≤ 18 = + 3.2 mm / - 0 | ≥ 20 = + 4.8 mm / - 0		 Length thru Hub
≤ 10 = 1.6 mm | ≥ 12 = ± 3.2 mm
Notes
1. Dimensions are in millimeters unless otherwise indicated.
2. T = Nominal wall thickness of pipe. Bevel for Wall Thicknesses T from 5 mm to 22 mm inclusive.
3. The length of the stud bolt does not include the height of the chamfers (points).


Welding Neck Flange Packaging & Marking

Welding Neck Flange Packed ready stock   Welding Neck Flange export packing

Welding Neck Flange are individually wrapped by hand to ensure that the high quality of the material is maintained and no damage in the last stages of production. We recommend Plywood cases or pallet packaging to ensure safe packaging and prompt delivery of the ordered consignment.

Welding Neck Flange come with imprints relevant to the job information (eg, heat number, size, material and part number). This information is also printed along all delivered Welding Neck Flange.

Pressure class of Welding Neck Flange

Welding Neck Flange Price

ASME B16.5 Welding Neck Flange
FOB Price: US $1-2000 / Ton

ANSI Class150 4" Welding Neck Flange
FOB Price: US $700-1400 / Ton

Forged F304 B16.5 150LBS Slip On Flange
FOB Price: US $0.1-266 / Piece

Flange f304 a105 rf/ff slip on flange pn16 150ib
FOB Price: US $600-8000 / Ton

bs4504 pn16 socket welding flange high quality
FOB Price: US $1100.00-1450.00 / Ton

150lb socket welding stainless flanges F316
FOB Price: US $0.12-150 / Piece

lap joint flange a105
FOB Price: US $1000-2500 / Ton

ansi b16.5 class 150 lap joint flange
FOB Price: US $1-500 / Piece

ANSI Class150 Threaded Flange
FOB Price: US $700-1400 / Ton

threaded flange
FOB Price: US $1-5000 / Piece

EN1092 Forged Steel Blind Flange
FOB Price: US $1000-1200 / Ton

stainless steel pn10 blind flange
FOB Price: US $1-2000 / Piece

spectacle blind B16.48/API590
FOB Price: US $1-5000 / Piece

square flange
FOB Price: US $1000-2500 / Ton

Welding Neck Flange Inventory

PDF ASME / ANSI B16.5 / ASME B16.47 Flange- Download PDF

ASME / ANSI B16.5 / ASME B16.47 Flange

 

Available materials for Flange

Flange Inventory

Stainless Steel Nickel Alloys Carbon Steel & Alloy Steel

Stainless Steel Flange
Stainless Steel 304 Plate Flange
Stainless Steel 304 Forged Flange
Stainless Steel 304L Plate Flange
Stainless Steel 304L Forged Flange
Stainless Steel 310 Plate Flange
Stainless Steel 310 Forged Flange
Stainless Steel 310S Plate Flange
Stainless Steel 310S Forged Flange
Stainless Steel 316 Plate Flange
Stainless Steel 316 Forged Flange
Stainless Steel 316L Plate Flange
Stainless Steel 316L Forged Flange
Stainless Steel 317 Plate Flange
Stainless Steel 317 Forged Flange
Stainless Steel 317L Plate Flange
Stainless Steel 317L Forged Flange
Stainless Steel 321 Plate Flange
Stainless Steel 321 Forged Flange
Stainless Steel 321H Plate Flange
Stainless Steel 321H Forged Flange
Stainless Steel 347 Plate Flange
Stainless Steel 347 Forged Flange
Stainless Steel 347H Plate Flange
Stainless Steel 347H Forged Flange
Stainless Steel 446 Plate Flange
Stainless Steel 446 Forged Flange
Duplex 2205 Plate Flange
Duplex 2205 Forged Flange
Super Duplex 2507 Plate Flange
Super Duplex 2507 Forged Flange

High Nickel Alloy Flange
Nickel 200 Plate Flange
Nickel 200 Forged Flange
Nickel 201 Plate Flange
Nickel 201 Forged Flange
Monel 400 Plate Flange
Monel 400 Forged Flange
Monel K500 Plate Flange
Monel K500 Forged Flange
Inconel 600 Plate Flange
Inconel 600 Forged Flange
Inconel 601 Plate Flange
Inconel 601 Forged Flange
Inconel 625 Plate Flange
Inconel 625 Forged Flange
Inconel 718 Plate Flange
Inconel 718 Forged Flange
Incoloy 800 Plate Flange
Incoloy 800 Forged Flange
Incoloy 800H Plate Flange
Incoloy 800H Forged Flange
Incoloy 800HT Plate Flange
Incoloy 800HT Forged Flange
Incoloy 825 Plate Flange
Incoloy 825 Forged Flange
Hastelloy C276 Plate Flange
Hastelloy C276 Forged Flange
Hastelloy C22 Plate Flange
Hastelloy C22 Forged Flange
Hastelloy B2 Plate Flange
Hastelloy B2 Forged Flange
Alloy 20 Plate Flange
Alloy 20 Forged Flange
904L Plate Flange
904L Forged Flange
254 SMO Plate Flange
254 SMO Forged Flange
Hastelloy x Plate Flange
Hastelloy x Forged Flange

 

Products

Available Materials

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