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Integral Flange

The integral Flange (IF) is designed for connection of pipes. As one of hubbed welding neck steel pipe flanges, it can be made of different kinds of steel including carbon steel, stainless steel, alloy steel, etc. Generally, the flange is used in pipeline with high working pressure.

Available Sizes
3/8"~40", DN10~DN1000

Standards
GB/T9112-2000, GB/T9113.1-2000, GB/T9113.2-2000, GB/T9113.3-2000, GB/T9113.4-2000, GB/T9124-2000, GB/T13402-1992
HG/T20592-2009, HG/T20614-2009, HG/T20615-2009, HG/T20623-2009, HG/T20635-2009
ASME B16.5-2009, ASME B16.47-2006
API605-1988
MSS SP 44-2006
CSA Z245.12-05-2005
EN1092-1-2007, EN1759-1-2004
BS1560-3.1-1989, BS4504-3.1-1989
AFNOR NF E29-200-1-2007
ISO7005-1-1992
AS2129-2000
JIS B2220-2004

Raw Materials
Carbon steel: A105
Alloy steel: A182 F 1-F 2-F 5-F 9-F 10-F 91-F 92-F 122-F 911-F 11-F 12-F 21-F 22
Stainless steel: A182 304-304H-304L-304N-304LN 316-316H-316L-316N-316LN 321-321H 347-347H
Low-temperature steel: A522 A707 Grade L 1-L 2-L 3-L 4-L 5-L 6-L 7-L 8
High-performance steel: A694 F 42-F 46-F 48-F 50-F 52-F 56-F 60-F 65-F 70

Pressure Grade
American System: CLASS 150, CLASS 300, CLASS 400, CLASS 600, CLASS 900, CLASS 1500, CLASS 2500
European System: PN 2.5, PN 6, PN 10, PN 16, PN 25, PN 40, PN 63, PN 100, PN 160, PN 250, PN 320, PN 400

Flange Facing
American System: Flat Face (FF), Raised Face (RF). Tongue Face (T), Groove Face (G), Female Face (F), Male Face (M), Ring Joints Face (RJ)
European System: Flat Face, Raised Face, Tongue Face, Groove Face, Female Face, Male Face, Ring Joints Face.

Producing Process
Cutting of Raw Material --- Die Forging --- Machining

Application
The flange is widely used in many areas such as power generation plant, petroleum industry, natural gas system, chemical industry, shipbuilding industry, heating system, paper-making industry, metallurgy industry, etc.

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