Special Products
BW Pipe Fittings
Forged Pipe Fittings
Steel Pipe Tube
Steel Sheet Plate
Round Bar
Welding Wire Electrodes
Prefabrication Pipe Spools
  • Threaded Flange
  • Threaded Flanges
  • Threaded Flanges
  • flanges

Threaded Flange

  • Type: Threaded Flange
  • Class: 150#-2500#, 150LBS-2500LBS,PN6-PN100
  • Size: 1/2" (15 NB) to 24" (600NB),DN10-DN1500
  • Service: Welding, Fabricated, Customized

Threaded Flange Description

Threaded flange refers to a type of flange that uses threads to connect with pipes. The advantage is that no welding is required,  but he disadvantage is that the flange thickness is large and the cost is relatively higher. It's suitable for the connection of high-pressure pipelines. 

Threaded flange is a kind of non-welded flange by processing the inner hole of the flange into pipe thread and matching with the threaded pipe to realize the connection. Compared with flat welding flanges or butt welding flanges, threaded flanges have the characteristics of convenient installation and maintenance, and can be used on some pipelines where welding is not allowed on site. The alloy steel flange has sufficient strength, but it is not easy to weld, or the welding performance is not good, you can also choose the threaded flange. However, when the temperature of the pipeline changes sharply or the temperature is higher than 260℃ and lower than -45℃, it is recommended not to use threaded flanges to avoid leakage.
threaded flange
We HT PIPE is the manufacture that provide all kinds of  steel flanges like Threaded Flanges, Blind Flanges, Plate Flanges, Weld Neck Flanges, Slip On Flanges, Socket Weld Flanges, and so on, and also other special flanges according to the client's requirement.
Threaded Flange Specification:

Standard Type Class Size
ASME B16.5 Threaded 150#-900# 1/2"-24"
1500# 2500# 1/2"-2 1/2"
DIN2565 Threaded flange with Neck PN6 DN6-DN200
DIN2566 Threaded flange with Neck PN16 DN6-DN150
DIN2567 Threaded flange with Neck PN25 PN40 DN6-DN150
DIN2568 Threaded flange with Neck PN64 DN10-DN150
DIN2569 Threaded flange with Neck PN100 DN10-DN150
JIS B2220 Welding Flange, Lap joint flange, threaded flange PN6-PN100 DN10-DN1500
Sealing Surface RF FF RTJ TF GF LF LM
Flange Face Finish Stock Finish/Spiral Serrated/Concentric Serrated/Smooth Finish(Ra 3.2 and 6.3 micrometers)
125-250 AARH(it is called smooth finish)
250-500 AARH(it is called stock finish)
Coating Vanish, yellow paint, anti-rust oil, galvanizing etc
flange surfce coating treatment

Threaded Flange Material Grades:

Carbon Steel ASTM /ASME A/SA105(N), A350 LF2/LF3, A694 F52, F56, F60, F65, F70
Alloy Steel ASTM/ASME A/SA 182  F5, F9, F11, F22, F91
Stainless Steel ASTM/ASME A/SA 182 F304, 304L, 304H, 310H, 316, 316H, 316L, 
316Ti, 317, 317L, 321, 321H, 347, 347H, 904L
Duplex and
Super Duplex
ASTM/ASME A/SA 182 F44, F45, F51, F53, F55, F60, F61,
S31803, S32205, S32550, S31254, SMO254, S32750, S32760, S32950
Nickel Alloy Steel ASTM/ASME B/SB 564 UNS N02200(NICKEL 200), UNS N04400, (MONEL 400),
UNS N08825( INCOLOY 825), UNS N06600(INCONEL 600), UNS N06601(INCONEL 601),
UNS N06625(INCONEL 625), UNS N10276(HASTELLOY C276)
ASTM/ASME B/SB160 UNS N02201(NICKEL 201),  ASTM B/SB472 UNS N08020(Alloy 20)
Copper Alloy ASTM/ASME B/SB151 UNS N07060, 71500, C70600(CuNi 90/10), C71500(CuNi 70/30)
Titanium ASTM/ASME B/SB381 Grade 2, Grade 5, Grade 7
Manufacturer, exporter & supplier of ASME/ANSI B16.5 Carbon steel Threaded Flanges, Alloy steel Threaded Flanges, Nickel alloy steel Threaded Flanges,  Stainless steel Threaded Flanges, Duplex steel Threaded Flanges, ASTM A105/105N, ASTM A350 Lf2, ASTM A694, ASTM A182, ASTM B564 Threaded Flanges manufaturer in Zhengzhou HT PIPE.

Please fill in your procurement needs and contact information

  • * Your Mail :
  • Your Tel :
  • Your Name :
  • Your Company :
  • * Your inquiry :