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 ASTM A182 GR2507 WNRTJ Flange 10″ CL2500
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GR2507-WNRTJ-Flange-10"-CL2500

China Weld Neck Ring Type Joint Flange Manufacturer www.metallicsteel.com offers ASME B16.5 ASTM A182 GR2507 WNRTJ Flange, 10″, CL2500.

GOST 12820-80 304 WNRF Flange 6″ 1.6MPa
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GOST-12820-80-304-WNRF-Flange-6"-1.6MPa

China Welding Neck Flange Manufacturer www.metallicsteel.com offers GOST 12820-80 304 WNRF Flange, 6″, 1.6MPa.

ASME B16.5 A182 F304L WNRF Flange DN250 S/40S Class150
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F304L-WNRF-Flange-DN250-S/40S-Class150

China Welding Neck Flange Manufacturer www.metallicsteel.com offers ASME B16.5 A182 F304L WNRF Flange, DN250, S/40S, Class150.

ASME B16.5-2013 A182 F304L WNRF Flange DN50 S/40S Class300
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F304L-WNRF-Flange-DN50-S/40S-Class300

China Welding Neck Flange Manufacturer www.metallicsteel.com offers ASME B16.5-2013 A182 F304L WNRF Flange, DN50, S/40S, Class300.

ASME B16.5-2013 A182 F316L WNRF Flange DN250 S/40S Class150
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F316L-WNRF-Flange-DN250-S/40S-Class150

China Welding Neck Flange Manufacturer www.metallicsteel.com offers ASME B16.5-2013 A182 F316L WNRF Flange, DN250, S/40S, Class150.

ASME B16.5 A182 F316L WNRF Flange DN200 S/80S Class300
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F316L-WNRF-Flange-DN200-S/80S-Class300

China Welding Neck Flange Manufacturer www.metallicsteel.com offers ASME B16.5 A182 F316L WNRF Flange, DN200, S/80S, Class300.

ASME B16.5 A182 F316L WNRF Flange DN100 S/40S Class300
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F316L-WNRF-Flange-DN100-S/40S-Class300

China Welding Neck Flange Manufacturer www.metallicsteel.com offers ASME B16.5 A182 F316L WNRF Flange, DN100, S/40S, Class300.

ASME B16.5 A182 F304L WNRF Flange DN400 S=11 Class300
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F304L-WNRF-Flange-DN400-S=11-Class300

China Welding Neck Flange Manufacturer www.metallicsteel.com offers ASME B16.5 A182 F304L WNRF Flange, DN400, S=11, Class300.

ASME B16.5 A182 F316L WNRF Flange DN150 S/40S Class150
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F316L-WNRF-Flange-DN150-S/40S-Class150

China Welding Neck Flange Manufacturer www.metallicsteel.com offers ASME B16.5 A182 F316L WNRF Flange, DN150, S/40S, Class150.

ASME B16.5 A182 F316L WNRF Flange DN200 S/40S Class600
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F316L-WNRF-Flange-DN200-S/40S-Class600

China Welding Neck Flange Manufacturer www.metallicsteel.com offers ASME B16.5 A182 F316L WNRF Flange, DN200, S/40S, Class600.