Hebei Haihao Steel Flanges.

  • weld neck flange/wn flange

    Weld Neck Flange

  • slip-on-flange/so-flange

    Slip On Flange

  • threaded flange/screwed flange

    Threaded Flange

  • blind flange/bl flange

    Blind Flange

  • plate flange/pl flange

    Plate Flange

  • socket weld flange/sw flange

    Socket Weld Flange

  • Loose Flange(Lap Joint Flange)/LJ flange

    Loose Flange(Lap Joint Flange)

  • Orifice Flange

    Orifice Flange

  • Integral Flange(Long Weld Neck Flange)/LWN flange

    Integral Flange(Long Weld Neck Flange)

  • Spectacle Flange/Spacer/Spader

    Spectacle Flange

  • Non-Standard Flange/Customized Flange

    Non-Standard Flange

Forged flange: A flange is a rib or rim used for strength, guiding or attachment to another object such as a pipe,steam cylinder,pressure vessel,etc.Pipes,tubes or vessels can be easily assembled or disassembled by using it. Besides,flanges are fit to many other compenonts,such as valves,wheels,bellows. In different projects and designs,flanges are used in different types,commonly including:

Welding neck flanges (WN FLANGES)

Slip-on flanges (SO FLANGES)

Plate flanges (PL FLANGES)

Threaded flanges (THR FLANGES)

Lap joint flanges (LJ FLANGES)

Reducing flanges

Blind flanges (BL FLANGES)

Socket weld flanges (SW FLANGES)

Orifice Flange

Spectacle Blind Flange

Long Weld Neck Flange

Rolled-Forging Ring Flange


Tube Sheet (Tubesheet)

HEBEI HAIHAO GROUP supply flanges used extensively with pipe fittings in all kinds of industrial applications,including:

natural gas,chemical,petroleum,ship building,marine,paper making,metallurgy,electric,power,boiler,etc. Depending on different applications,

we have the following materials for the flanges:

Carbon steel: ASTM A105,ASTM A105N,GB 20,C22.8. Alloy steel: ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP 911

Stainless steel: ASTM/ASME A403 WP 304-304L-304H-304LN-304N ASTM/ASME A403 WP 316-316L-316H-316LN-316N-316Ti ASTM/ASME A403 WP 321-321H ASTM/ASME A403 WP 347-347H

Low temperature steel: ASTM/ASME A402 WPL 3-WPL 6

High performance steel: ASTM/ASME A860 WPHY 42-46-52-60-65-70

Our flanges are usually according to different standards for different customers and projects:

America standard: ANSI B16.5,ANSI B16.47,ETC.

German standard: DIN 2573/DIN 2576/DIN 2631/DIN 2632/DIN 2633/DIN 2634/ DIN2635/DIN 2527 Japen standard: JIS B2220

Europe standard: BS4504/BS 10/UNI 2276 UNI 2277/UNI 2278/ UNI 6089/UNI 6090/EN 1092.

We also manufacture other un-standard flanges according to customers’requirements, and some forgings. These products have passed the ISO9000, ISO14001, GB/T28001, and Q/SY1002.1 certification. Due to our high quality and low prices, our products are well received in the global market, in countries such as the USA, Italy, Belgium, Chile, Bolivia, United Arab Emirates, Brazil, South Korea, India and more. For more information, please feel free to contact us!