Special Flanges Made To Order


A flange is a cast or forged steel product used to connect a pipe with another mechanical device, forged steel flanges are preferred due to their intrinsic strength and durability

Flanges are available in multiple types, the standard ones are the welding neck, blind, socket weld, lap joint, threaded, etc.). There are also some special types of flanges, like the swivel flanges, the expander/reducer flanges, the Nipoflange / Weldoflange, and the orifice flanges.

As a general rule, welding neck, slip-on, and socket weld flanges are used for high-pressure applications that require long-lasting flanged joints. Threaded flanges can be used with a lower pressure piping system, and if vibrations are not present.

Lap joint flanges are used in connection with stub ends either to facilitate the alignment of the bolts of the two mating flanges, or to reduce the cost of noble materials in high-grade flanged joints.
Example, in an Inconel piping system, the stub end connected to the pipe may be in Inconel, whereas the lap joint flange can be of a lower grade, thus saving the overall weight of the expensive Inconel material.

Material Grade

  • ASTM A105 (carbon steel flanges for high-temperature service)
  • ASTM A350 (CS flange for low temperature)
  • ASTM A694 (high yield carbon steel flange for line pipes)
  • ASTM A182 F1 to F91 (alloy steel flange)
  • ASTM A182 F304, F316, F321 (stainless steel flange)
  • ASTM A182 F51, ASTM A182 F53/55 (duplex and super duplex flange), and higher grades (Inconel, Hastelloy, Monel flange).


ANSI B16.47 Series A, ANSI B16.5, MSS SP 44, ASME, AWWA




  • Weldneck Flanges
  • Blind Flanges
  • Slipon Flanges
  • Threaded Flanges
  • Socketweld Flanges
  • Anchor Flanges
  • Adaptor Flanges
  • Spectacle Blinds
  • Lap Joint Flanges
  • Orifice Flanges
  • Swivel Flanges
  • Hub Type Flanges
  • Reducing Flanges
  • Weldo Flange
  • Nippo Flange
  • Bolted Flange
Stainless Steel A182 F 304L/H, 316L/H, 309S/H, 310,317L, 321H, 347, 904L  
Carbon Alloy A105, A350 LF2 , LF6
Alloy Steel A694 F52, F60, F65, F70
Inconel 6625, 8825
Chrome Moly F5, F9, F11, F22, F91
Duplex F51 / F60 (S31803 / S32205)
Super Duplex F53 / F55 (S32750 / S32760)
Special Grade Alloy 20, Haste Alloy C276
Monel 400, Alloy 600/800H

Flange Faces

Get In Touch

  • PO BOX: 97840,
    Jebel Ali Industrial Area,
    Dubai, UAE

  • +971 4 287 9810

  • sales@aqsa.ae