Welding Neck Flanges

Weld Neck Flanges are flanges that designed to transfer stresses to the pipe to reduce high stress concentrations at the base of the flange. Compared with other types,weld neck flanges are know for their tapered hub and gentle transition from flange thickness to pipe wall thickness. They are deformation-resistant, and are normally used for high pressure piping system, high or low temperature conditions.

Size:1/2”-48”(15NB-1200NB)
Pressure ratings:class150,class300,class400,class600,class900,class1500,class2500 | PN6pn10,PN25,PN40,PN64 ect.

Materials:
Carbon Steel 
Welded Neck Flange

ASTM SA/A105(N),C22.8,ST37.2,A516 GR60/70,ASTM SA350 LF2,ASTM SA694 F42/46/52/56/60/65…
Stainless Steel Welded Neck Flange:

ASTM A182 F304/304L/316/316L…
Duplex Stainless Steel: ASTM A182 F51/F53/F55/F60…
Alloy Steel Welded Neck Flange:

ASTM A182 F1/F5/F9/F11/F22/F91…

China Weld Neck Flange Manufacturer www.metallicsteel.com supplies Weld Neck Flanges, WN Flanges, Welding-Neck Fittings in carbon steel, Stainless Steel, alloy steel, etc.

Products List

ASME B16.5 A182 TYPE 304L Weld Neck Flange Raised Face DN80 SCH40S Class150
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TYPE-304L-Weld-Neck-Flange-Flange-Raised-Face-DN80-SCH40S-Class150

China Welding Neck Flange Manufacturer www.metallicsteel.com offers ASME B16.5 A182 TYPE 304L Weld Neck Flange Raised Face, DN80, SCH40S, Class150.

ASME B16.5 ASTM B564 Incoloy 825 WNRF Flange 3″ SCH40 CL150
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Incoloy-825-WNRF-Flange-3"-CL150

China Weld Neck Flange Manufacturer www.metallicsteel.com offers ASME B16.5 ASTM B564 Incoloy 825 WNRF Flange, 3″, SCH40, CL150.

Nonstandard ASME B16.5 A182 UNS S32750 WN RF Flange 6 Inch Sch80 CL300 RF=4MM
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UNS-S32750-WN-RF-Flange-6-Inch-Sch80-CL300

China Welding Neck Flange Manufacturer www.metallicsteel.com offers Nonstandard ASME B16.5 A182 UNS S32750 WN RF Flange, 6 Inch, Sch80, CL300, RF=4MM.

ASME B16.5 ASTM B564 Alloy 800H LWNRF Flange 1-1/2″ CL300
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Alloy-800H-LWNRF-Flange-1-1/2"-CL300

China Long Weld Neck Flange Manufacturer www.metallicsteel.com offers ASME B16.5 ASTM B564 Alloy 800H LWNRF Flange, 1-1/2″, CL300.

ASME B16.5 ASTM B564 Alloy 400 LWNRTJ Flange 2″ CL600
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Alloy-400-LWNRTJ-Flange-2"-CL600

China Long Weld Neck Flange Manufacturer www.metallicsteel.com offers ASME B16.5 ASTM B564 Alloy 400 LWNRTJ Flange, 2″, CL600.

ASME B16.5 ASTM B564 Alloy 800H LWNRF Flange 2″ CL300
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Alloy-800H-LWNRF-Flange-2"-CL300

China Long Weld Neck Flange Manufacturer www.metallicsteel.com offers ASME B16.5 ASTM B564 Alloy 800H LWNRF Flange, 2″, CL300.

ASME B16.5 ASTM B637 Nimonic 80a LWNRF Flange 3″ CL150
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Nimonic-80a-LWNRF-Flange-3"-CL150

China Long Weld Neck Flange Manufacturer www.metallicsteel.com offers ASME B16.5 ASTM B637 Nimonic 80a LWNRF Flange, 3″, CL150.

ASME B16.5 ASTM A182 F316L WNRTJ Flange 1-1/2″ SCHSTD CL2500
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F316L-WNRTJ-Flange-1-1/2"-SCHSTD-CL2500

China Weld Neck Ring Type Joint Flange Manufacturer www.metallicsteel.com offers ASME B16.5 ASTM A182 F316L WNRTJ Flange, 1-1/2″, SCHSTD, CL2500.

Non-Standard A182 UNS S32760 WNRF Flange DN40 Sch10S Class300
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UNS-S32760-WNRF-Flange-DN40-Class300

China Welding Neck Flange Manufacturer www.metallicsteel.com offers Non-Standard A182 UNS S32760 WNRF Flange, DN40, Sch10S, Class300.

ASME B16.5 A182 F316L WNRF Flange DN500 SCH100 Class900
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F316L-WNRF-Flange-DN500-SCH100-Class900

China Welding Neck Flange Manufacturer www.metallicsteel.com offers ASME B16.5 A182 F316L WNRF Flange, DN500, SCH100, Class900.