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.steelflangesfittings.com supplies Weld Neck Flanges, WN Flanges, Welding-Neck Fittings in carbon steel, Stainless Steel, alloy steel, etc.

F317L-WNRF-Flange-DN1000-Class300
F317L-WNRF-Flange-24-Inch-Class-300
F317L-WNRF-Flange-10-Inch-SCH40S-Cl300
F317L-WNRF-Flange-4-Inch-SCH40S-Class300
F317L-WNRF-Flange-3-Inch-SCH40S-Class300
F304L-WN-ST Flange-6-Inch-Class150
UNS-S32750-WNRF-Flange-2-Inch-Sch40S-CL150
F304L-WNRF-Flange-6"-STD-150LBS
F904L-WNRF-Flange-DN80-SCH10S-Class150
F904L-WNRF-Flange-DN32-SCH40S-Class150