ASTM A181 weld neck flange also known as a high-hub flange and tapered hub flange,it is a type of flange.It attach to the pipe by welding the pipe to the neck of the pipe flange.The ASTM A181 weld neck pipe flange is often used for high pressure applications.The inside diameter of a weld neck pipe flange is machined to match the inside diameter of the pipe.
ASTM A181 is a kind of carbon steel material.We produce weld neck flange of main material are:
Carbon steel:ASTM A105, A181, ASTM A516 GR.60, GR.70, ASTM A694 F42, F46, F52, F56, F60, F65, F70, ST37, ST45.8, C22.8, S235, S235JRG2, P235GH, P245GH, P250GH, P265GH, P355GH, S355J2, 16MN, 20MN, Q235, 20#, CT20, SS400.
Stainless steel:ASTM A182 F304, F304L, F316, F316L, F321, F321H, F304H, F316H, F347H, 1.4301, 1.4306, 1.4401, 1.4404, 1.4541, 1.4571, SUS304, SUS316.
Duplex Steel:S31803 / F51 / S32205 / F60 / 1.4462
Super Duplex:S32750 / F53 / 1.4410 / S32760 / F55 / 1.4501
Alloy Steel:ASTM A350 LF2, CL1/CL2, ASTM A182 F5, F9, F11, F12, F22, F91.
In addition to the ASTM A181 weld neck flange,we also produce ASTM A181 flanges are:plate flange,threaded flange,slip on flange,blind flange,lap joint flange,etc.
ASTM A181 Weld Neck Flange Pressure:
We produce the ASTM A181 weld neck flange under the pressure of PN6.
ASTM A181 Weld Neck Flange Standard:
In Hebei Haihao,we produce ASTM A181 weld neck flange according to standards:ANSI/ASME B16.5,EN1092-1,BS4504,DIN2631,DIN2632,DIN3633,DIN2634,DIN2635,UNI 2280,UNI 2281,UNI 2282,UNI 2283,UNI 2284,BS 10,etc.
ASTM A181 Weld Neck Flange Size:
The size of the ASTM A181 weld neck flange are:1/2”-80” or DN15-DN2000.We usually produce ASTM A181 weld neck flange size is 4inch.We can produce different size according to customers’ any requirements.
ASTM A181 Weld Neck Flange Sealing Face:
The ASTM A181 weld neck flange sealing face are:Raised Face(RF),Fat Face(FF),Ring Type Joint(RTJ).
Hebei Haihao is professional in ASTM A181 weld neck flange.We have more than 30 years of experience.We have a complete set of equipment including advanced cutting,forging,machining,drilling machines and professional testing & inspection instruments.Welcome to contact us when you have any need about ASTM A181 weld neck flanges and other types of ASTM A181 flanges.