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    • Steel Pipe Steel Pipe manufacturer ,C&N supplies Seamless / Welded Steel Pipes, Iron Pipes, Galvanized Pipe, Piping System in Ductile Iron, carbon steel, stainless steel, alloy steel, etc.
      • Carbon steel pipesCarbon steel pipes
      • Stainless steel pipesStainless steel pipes
      • Alloy steel pipe
    • Flanges
      • Weld Neck Flanges
      • Blind Flange
      • Orifice Flanges
      • Slip on Flanges
      • Spacer Ring / Spade Flanges
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    • Butt weld pipe fittings Butt Weld Pipe Fittings Type: 45, 90, 180 Deg. Long/Short Radius Elbows, Equal Tees, Reducing Tees, Equal Crosses, Reducing Crosses, Concentric Reducers, Eccentric Reducers, Caps, Barred Tees, etc. Pi…
      • ElbowsElbow is used to be installed between two lengths of pipe or tube allowing a change of direction,usually these elbows distinguished by connection ends, The ends may be machined for butt welding , thre…
      • ReudcerReducer is a kind of fitting that be used for reducing piping size. There are 2 types reducer as follows: a. Concentric reducer: have a central axis (centerline) of the section between the large and s…
      • TeeA tee is also called triplet,three way and “T” pieces and it can be used to either combine or split a fluid flow. Most common are tees with the same inlet and outlet sizes, but ‘redu…
    • Forged pipe Fittings
      • coupling
      • OletWeldolet
      • SW/Thread ElbowSocket Weld Fitting/Thread weld fittings is manufactured as per ANSI B16.11 Standard. It is available in different class i.e. 3000, 6000,and generally speaking,the socket weld fittings are for high te…
      • SW/Thread TeeSW/Thread Tee
      • UnionUnion
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    • Aluminium Material
      • Aluminum Alloy FlangesWe are one of the most quality conscious producers of the wide range of Aluminum alloy flange which is meant to cater to various industrial platforms in various domains. The applications of this produ…
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Weld Neck Flanges

Weld neck flange is normally referred to as the “high hub” Flange. It is designed to transfer stresses to the pipe, thereby reducing high stress concentrations at the base of the Flange. The welding neck flange is the best designed butt-welded flange of those currently available because of its inherent structural value. It is expensive because of the design.

For the face of flange,They are made to standardized dimensions and are typically “flat face”, “raised face”, “tongue and groove”, or “ring joint” styles, although other obscure styles are possible.

Weld neck Flange manufacturer,C&N supplies Blind Flanges, Industrial weld neck Flanges,  alloy steel, carbon steel, stainless steel, etc.

ASME/ASTM Flanges

Pipe flanges that are made to standards called out by ASME B16.5 or ASME B16.47, and MSS SP-44.

They are typically made from forged materials and have machined surfaces. ASME B16.5 refers to nominal pipe sizes (NPS) from ½” to 24″. B16.47 covers NPSs from 26″ to 60″. Each specification further delineates flanges into pressure classes: 150, 300, 400, 600, 900, 1500 and 2500 for B16.5, and B16.47 delineates its flanges into pressure classes 75, 150, 300, 400, 600, 900

DIN Flange/EN 1092-1 Flanges

Germany and several other countries in the European Union mainly install flanges according to standard DIN EN 1092-1 (forged Stainless or Steel Flanges). Similar to the ASME flange standard, the EN 1092-1 standard has the basic flange forms, such as weld neck flange, blind flange, lapped flange, threaded Flange (Thread ISO7-1 instead of NPT), weld on collar, pressed collars, and adapter flange such as flange coupling GD pressfittings. The different forms of flanges within the EN 1092-1 (European Norm Euronorm) is indicated within the flange name through the type.

Design According to EN Type According to DIN
Weld Neck Flange EN 1092-1 Type 11
  • DIN 2632 PN 10 WNRF
  • DIN 2633 PN 16 WNRF
  • DIN 2634 PN 25 WNRF
  • DIN 2635 PN 40 WNRF
ASME B16.5  150 lbs Weld Neck Flange
ASME B16.5   300 lbs Weld Neck Flange
ASME B16.5 600 lbs Weld Neck Flange

GOST FLANGES

GOST 12821-80

GOST 33259 Type 11 Weld neck Flanges

 

Similar to ASME flanges, EN 1092-1 steel and stainless flanges, have several different versions of raised or none raised faces. According to the European form the seals are indicated by different form:

Form: types of Contact Faces DIN EN 1092-1
Without Raised Face Form A
Raised Face Form B1
Raised Face Form B1
Raised Fac) Form B2
Tongue According to DIN2512 Form C
Groove According to DIN 2512 Form D
Male According to DIN 2513 Form E
Female According to DIN 2513 Form F
Female According to DIN 2514 Form G
Male According to DIN 2514 Form H

Flanges Material:

CARBON STEEL – ASTM/ASME SA-105, A-350 LF-2, LF-3, A694, SA-516-70,

CHROME ALLOYS – A-182-F-1, F-5, F-6, F-7, F-9, F-11, F-12, F-22, F-51

STAINLESS STEEL – A-182 – F-304, 304L, 316, 316L, 309, 310, 317L, 321, 347,Alloy 20

ALUMINUM – 1100, 2014, 3003, 5083, 5086, 6061, 7075

HASTALLOY – B-2, C-276, G, X

INCONEL – 600, 601, 625, 718

INCOLLOY – 800, 825

MONEL – 400

Welding neck flange EN 1092-1 Type 11,EN 1092-1 type 11B,DIN 2633 Weld neck flange
Weld Neck Flanges

Welding neck flange EN 1092-1 Type 11 PN6,PN10,PN16,PN25,PN40 WN FLANGE

Welding neck flange EN 1092-1 Type 11,EN 1092-1 type 11B,DIN 2633 Weld neck flange We are the  professional manufacturer of steel forged flange in China,weld neck flange,weld neck raise face flange,ANSI B16.5 weld neck flange,EN 1092-1 TYPE 11 Weld neck flanges EN 1092-1 TYPE 11 WELDING NECK FLANGE PN6, PN10, Read more…

By ADMIN, 55 yearsMay 30, 2025 ago
ASTM A182 F5 Weld neck Flanges-A182 F5 Flange-ASME-B16.5
Weld Neck Flanges

ASTM A182 F5 Flange A182 F5 Weld neck Flange WNRF flange ASME B16.5

ASTM A182 F5 Flange A182 F5 Weld neck Flange WNRF flange ASME B16.5 ASTM A182 F5 flange is a forging material grade forged flanges, manufactured from a chromium-molybdenum low alloy steel know as 5Cr-0.5Mo with a UNS designation of K41545. ASTM A182 F5 flange  is widely utilized in pressure high-temperature Read more…

By ADMIN, 55 yearsMay 30, 2025 ago
ASTM-A694-F52-Flanges-A694-F52-Weld neck Flanges
Weld Neck Flanges

ASTM A694 F52 Flange,A694 F52 Weld Neck Flanges,blind flange ASME B16.5 API 6A

ASTM A694 F52 Flange,A694 F52 Weld Neck Flanges,A694 F52 blind flange ASME B16.5 We are the ASTM A694 F52 Pipe Flanges manufacturer in China,high yield  carbon steel ASTM A694 F52 Blind Flanges, ASTM A694 F52 Weld neck Flanges, ASTM A694 F60 Flanges and ASTM A694 F65 Flanges,fully comply with Nace Read more…

By ADMIN, 55 yearsMay 30, 2025 ago
ASTM A350 LF2 Weld Neck Flange WNRF ASME B16.5
Weld Neck Flanges

ASTM A350 LF2 Flanges,ASTM A350 LF2 Weld Neck Flanges NACE MR0175

ASTM A350 LF2 Flanges,ASME B16.5,A350 LF2 Weld neck flange,A350 LF2 Low temperature Service Flanges We are a professional manufacturer of steel forged flange in China,ASTM-A-350-LF2 Flange ,A350 LF2 Weld Neck Flange,A350 LF2 Blind flange,A350 LF2 Slip on Flange,A350 LF2 Flange NACE MR 0175 . As a experienced A350 LF2 Flange Read more…

By ADMIN, 55 yearsMay 30, 2025 ago

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