Welding neck Flanges
These are the most common type of flange used for high pressure applications. They are recognized by their long tapered hub. The hub provides an important reinforcement to the flange itself and acts to reduce rotation of the flange at bolt-up. The smooth transition between the flange and the hub combined with the strength of the butt weld joint, allows the flange to be used in extreme conditions of cyclic loading, bending and temperature fluctuations
- Size: 1/2”-60”
- Design Standard: ANSI, JIS, DIN, BS
- Material: Carbon Steel (
ASTM A105, Q235,20Mn
)
Stainless Steel (ASTM A182 F304/304L, F316/316L,F321)
Alloy Steel (ASTM A182F1, F2, F5/A, F6/A, F9, F11, F12,F22, F91)
- Normal Pressure: CLASS 150, CLASS 300, CLASS 600, CLASS 900,CLASS 1500, CLASS 2500, CLASS 3000
- Face Type: F.F., R.F., R.T.J.,M.F.,T.G.
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Flange
 Flange Overview
Material of Flange
Technology Information
Drawing of ANSI B16.5
Drawing of ANSI B16.36
Drawing of BS
Drawing of DIN
Drawing of JIS
Forged Flange
welding neck flanges
Slip-On Flanges
Lap Joint Flanges
Threaded Flanges
Blind Flanges
Orifice Flanges
Steel plate flanges
Drawing of KS/JIS
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