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Weld neck Flanges are drilled (machined) with the wall thickness of the flange having the same dimensions of the matching pipe. Hey are normally used for high-pressure, cold or hot temperature.

1)flange meterial: 304, 304L, 316, 316L, 321, 301, 202, F51, 309, 904L;
2)flange used in petroleum, chemical, power, gas, metallurgy, ship-building, construction, etc.
Nominal diameter 700
Flange outside diameter in welding end 712
Flange outside diameter 952
Bolt hole in the center circle diameter 863.5
Bolt hole diameter 48
Number of bolt 28
Size of thread M45
Sealing size 784/7
Flange thickness 116
Flange height 191
Flange neck 753
Flange inside diameter 677
Fillet radius 13