Weld Neck Flanges are flanges with the wall thickness of the flange having the same dimensions of the matching pipe, the lighter the pipe is, the larger the bore, conversely, the heavier the pipe, the smaller the bore, they are normally used for high pressure, cold or hot temperature.

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

Application:It is widely used in petrochemical, metallurgy, power, papermaking, construction and other industries.

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
Surface Treatment:
Yellow/Black Coating, Anti-Rust Oil

Weld neck flange is available in both raised face and flat face configuration.

Tianjin Decho is one of the leading weld neck flanges manufacturers and suppliers, we have  extensive  quantity of ASME B16.5 Welding Neck Flange  F304L with 900LBS 10 Inch RF, SCH 80 according to A182 in stock, if you want to buy or import best high-quality weld neck flanges from professional factory and learn more about weld neck flanges dimension and size, please contact us 

Decho is one of the leading China Flange manufacturers and suppliers, if you want to buy or import best high-quality weld neck flanges professional company, factory, seller, and exporter, or if you are checking steel brands, please feel free to contact us.