Plate flange features high accessibility of its raw materials, easy manufacturing, low cost and good comprehensive performance. Hence, it is widely used in many fields such as chemical industry, construction industry, water supply system, water drainage system, petroleum industry, heavy and light industry, refrigeration industry, hygienic industry, water heating system, fire protection sector, power supply industry, aerospace industry and shipbuilding industry. However, the flange is not suitable for piping system which requires high vacuum degree, flammable and combustible situations and other extremely hazardous occasions.
GB/T9112-2000, GB/T9119-2000, GB/T9124-2000
JB/T74-1994, JB/T75-1994, JB/T81-1994
AFNOR NF E29-200-1-2007
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
European System: PN2.5, PN 6, PN10, PN 16, PN 25, PN 40, PN 63, PN 100
European System: Flat Face (FF), Raised Face (RF)
Cutting of Raw Material --- Die Forging --- Machining
The flange is widely used in many areas such as power generation plant, petroleum industry, natural gas system, chemical industry, shipbuilding industry, heating system, papermaking industry, metallurgy industry, etc.