Stainless Steel Pipe Fittings

About Weld Neck Flanges By

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About Weld Neck Flanges By

Specification of Weld Neck Flange

Weld Neck Flange is that designed to be joined to a piping system by butt welding. This kind of flange include lots of specification,Weld neck Flange is expensive because of its long neck and cost of people for contact WN flange with pipeline or fitting, but is preferred for high stress applications. The necks, or hubs, transmits stresses to the pipeline. The gradual transition of thickness from the base of the hub to the wall thickness at the butt weld provides important reinforcement of the Weld Neck flange. The bore of Weld-Neck flange matches bore of the pipeline, reducing turbulence and erosion.

16.5 Welding Neck Flange 150lb
B16.5 Welding Neck Flange 300lb
B16.5 Welding Neck Flange 600lb
B16.5 Welding Neck Flange 900lb
B16.5 Welding Neck Flange 1500lb
B16.5 Welding Neck Flange 2500lb
B16.47 Ser.B (API)Welding Neck Flange 75lb
>B16.47 Ser.B (API)Welding Neck Flange 150lb
B16.47 Ser.B (API)Welding Neck Flange 300lb
B16.47 Ser.B (API)Welding Neck Flange 600lb
B16.47 Ser.B (API)Welding Neck Flange 900lb
B16.47 Ser.A (MSS SP44) Welding Neck Flange 150lb
B16.47 Ser.A (MSS SP44) Welding Neck Flange 300lb
B16.47 Ser.A (MSS SP44) Welding Neck Flange 600lb
B16.47 Ser.A (MSS SP44) Welding Neck Flange 900lb
Description of Welding neck flange
Type: WN Forged Flange
Material: Carbon steel: A105,SS400,SF440 RST37.2,S235JRG2,P250GH,C22.8, Stainless Steel: F304 F304L F316 F316L 316Ti, Copper etc.
Standard: ANSI,JIS,DIN,BS4504,SABS1123,EN1092-1, UNI,AS2129,GOST-12820
Size: 1/2-78 inch (DN15-DN2000)
Pressure: ANSI class 150,300,600,1500,2500, DIN PN6,PN10,PN16,PN25,PN40,PN64,PN100,PN160
Packing: No Fumigate or Fumigate Plywood/Wood Pallet or Case
Surface Treatment: Anti-rust Oil, Transparent/Yellow/Black Anti-rust Paint,Zinc,Hot dipped Galvanized.
Usage: Oil Field, Offshore, Water System, Shipbuilding, Natural Gas, Electric Power, Pipe Projects etc
Yaang Pipe Industry can supply you the following :

SS Weld Neck Flange CS Weld Neck Flange Alloy Steel WNF F5 Weld Neck Flange F11 Weld Neck Flange
F22 Weld Neck Flange F12 Weld Neck Flange F91 Weld Neck Flange SS 304 Weld Neck Flange SS 304L Weld Neck Flange
SS 316 Weld Neck Flange SS 316L Weld Neck Flange SS 317 Weld Neck Flange SS 317L Weld Neck Flange SS 321 Weld Neck Flange
SS 347H Weld Neck Flange SS 904L Weld NEck Flange Duplex Weld Neck Flange S31803 Weld Neck Flange S32205 Weld NEck Flange
Monel 400 Weld Neck Flange Monel K500 Weld Neck Flange Inconel Weld Neck Flange Duplex Weld NEck Flange Super Duplex Weld Neck Flange
S32750 Weld Neck Flange S32760 Weld Neck Flange F51 Weld Neck Flange F53 Weld Neck Flange A694 F42 Weld NEck Flange
A694 F46 Weld Neck Flange A694 F52 Weld Neck Flange A694 F56 Weld Neck Flange A690 F60 Weld Neck Flange A694 F65 Weld Neck Flange
A694 F70 Weld Neck Flange A350 LF2 Weld Neck Flange A350 LF3 Weld Neck Flange A707 L1 Weld Neck Flange A707 L2 Weld Neck Flange
A707 L3 Weld Neck Flange A105 Weld Neck Flange F904L Weld Neck Flange Inconnel 625 Weld Neck Flange Incoloy 800 Weld Neck Flange
Incoloy 800H Weld Neck Flange Incoloy 800HT Weld Neck Flange Hastelloy B2 Weld Neck Flange Hastelloy B3 Weld Neck Flange Hastelloy C22 Weld Neck Flange
Hastelloy C276 Weld Neck Flange KOC approved Weld Neck Flange KNPC approved Weld Neck Flange Aaramco approved Weld Neck Flange Stainless Steel WNRF Flange
Carbon Steel WNRF Flange Alloy Steel WNRF Flange F5 WNRF Flange F11 WNRF Flange F22 WNRF Flange
F12 WNRF Flange F91 WNRF Flange SS304 WNRF Flange SS304L WNRF Flange SS3016 WNRF Flange
SS316L WNRF Flange SS 317 WNRF Flange SS317L WNRF Flange SS321 WNRF Flange SS347H WNRF Flange
SS904L WNRF Flange Duplex WNRF Flange S31803 WNRF Flange S32205 WNRF Flange Monel 400 WNRF Flange
Monel K500 WNRF Inconel WNRF Flange Duplex WNRF Flange Super Duplex WNRF S32750 WNRF Flange
S32760 WNRF Flange F51 WNRF Flange F53 WNRF Flange A694 F42 WNRF Flange A694 F46 WNRF Flange
A694 F52 WNRF Flange A694 F56 WNRF Flange A694 F60 WNRF Flange A694 F65 WNRF Flange A694 F70 WNRF Flange
A350 LF2 WNRF Flange A350 LF3 WNRF Flange A707 L1 WNRF Flange A707 L2 WNRF Flange A707 L3 WNRF Flange
A105 WNRF Flange F904L WNRF Flange Inconel 625 WNRF Flange Incoloy 800 WNRF Flange Incoloy 800H WNRF Flange
Incoloy 800HT WNRF Flange Hastelloy WNRF Flange Hastelloy B2 WNRF FLange Hastelloy B3 WNRF Flange Hastelloy C22 WNRF FLange
Hastelloy C276 WNRF FLange KOC approved WNRF FLange KNPC approved WNRF Flange Aaramco approved WNRF Flange Stainless Steel WNFF Flange
Carbon Steel WNFF Flange Alloy Steel WNFF Flange F5 WNFF Flange F11 WNFF Flange F22 WNFF Flange
F12 WNFF Flange F91 WNFF Flange SS304 WNFF Flange SS304L WNFF Flange SS316 WNFF Flange
SS316L WNFF Flange SS317 WNFF Flange SS317L WNFF Flange SS321 WNFF Flange SS347H WNFF Flange
SS904L WNFF Flange Duplex WNFF Flange S31803 WNFF Flange S32205 WNFF Flange Monel 400 WNFF Flange
Monel K500 WNFF Flange Inconel WNFF Flange Duplex WNFF Flange Super Duplex WNFF Flange S32750 WNFF Flange
S32760 WNFF Flange F51 WNFF Flange F53 WNFF Flange A694 F42 WNFF Flange A694 F46 WNFF Flange
A694 F52 WNFF Flange A694 F56 WNFF Flange A694 F60 WNFF Flange A694 F65 WNFF Flange A694 F70 WNFF Flange
A350 LF2 WNFF Flange A350 LF3 WNFF Flange A707 L1 WNFF Flange A707 L2 WNFF Flange A707 L3 WNFF Flange
A105 WNFF Flange F904L WNFF Flange Inconel 625 WNFF Flange Incoloy 800H WNFF Flange Incoloy 800HT WNFF Flange
Hastelloy WNFF Flange Hastelloy B2 WNFF FLange Hastelloy B3 WNFF Flange Hastelloy C22 WNFF FLange Hastelloy C276 WNFF FLange
KOC approved WNFF FLange KNPC approved WNFF Flange Aaramco approved WNFF Flange

Source: Zhejiang Yaang Pipe Industry Co., Limited (

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