Non-standard flange is usually used for customers’ special requirement. They indicate the application service ,the data,the specification and the drawing . Then we produced the special flanges according to their requirement.
America Series:Class 150 ,Class 300, Class 600, Class 900A ,Class 1500,Class 2500.
Flange Facing Types
America Series:Flat face(FF),Raised face(RF),Tongue(T),Groove(G),Female(F),Male(M),Ring type joints face(RJ/RTJ)
Europe Series:Type A(Flat Face),Type B(Raised Face),Type C(Tongue),Type D(Groove),Type E(Spigot),Type F(Recess),Type G(O-Ring Spigot),Type H(O-Ring Groove)
Carbon steel: ASTM A105,ASTM A105N,GB 20,C22.8.
Alloy steel: ASTM/ASME A182 F1-F12-F11-F22- F5-F9- F91
Stainless steel: ASTM/ASME A182 F304-304L-304H-304LN-304N
ASTM/ASME A182 F316-316L-316H-316LN-316N-316Ti
ASTM/ASME A182 F321-321H, F347-347H
Low temperature steel: ASTM/ASME A350 LF2.
High performance steel: ASTM/ASME A694 F42 , F52, F56, F60, F65, F70
Our Non-standard flange can produced based on the common standard, and do some amendment according to our customers’ requirement.
ASME ANSI B16.5,ASME ANSI B16.47.
API 605,API 6L.
MSS SP 44
BS1560,BS 4504,BS 10.
AFNOR NF E29-200-1
UNI 2276. UNI 2277.UNI 2278 .UNI 6089 .UNI 6090
Application for Non-Standard flanges
Natural gas,chemical,petroleum,ship building,marine,paper making, metallurgy, electric, power, boiler , etc.
Hebei Haihao Group, as a first class manufacturer of non-standard flange in China,supplys a variety of steel flanges to satisfy our customers’ special requirements, which include different size, different schedule,different pressure and different finish faces. With our professional equipment and experienced technicalist, Our products are produced strictly according to the requirements. Our raw material for non-standard flanges all are purchased from big steel companies which can make sure the material in a high quality.