Specification of Weld Neck Flange
Weld Neck Flange Standard is flanges that designed to be joined to a piping system by butt welding.The necks, or hubs, transmits stresses to the pipeline.
The gradual transition of thickness from the base of the hub to the wall thickness at the butt weld provides important reinforcement of the Weld Neck flange.
Weld Neck Flange is easy to recognize at the long tapered hub and designed to joined to a piping system. It is comomed used to high stress applications.
| Shape Type | Regular and Long Neck |
| Sealing Face | RF, FF, FTJ |
| Size Range | 1/2″ – 48″/ DN15 – DN1200 |
| Pressure Rating | Class 150, 300, 600, 900, 1500, 2500lb |
| Standard | ASME B16.5, ASME B16.47 Series A/B |
| Carbon Steel | ASTM A105 / A105N |
| Low Temp Carbon Steel | ASTM A350 LF2/LF3 |
| Pipeline Steel | ASTM A694 F42 / 46 / 56 / 60 / 65 |
| Alloy Steel | ASTM A182 F11 / 12 / 5 / 9 / 91 / 92 |
| Stainless Steel | ASTM A182 F304/304L/304H, 316/316L, 310S, 317,347,904L |
| Duplex Stainless Steel | ASTM A182 F51, F53, F44 |
Weld Neck Flange Provide Standards
There are many standards for flange production, such as American standard, European standard, Japanese standard, German standard, etc. Common standards include the following:
ASME B16.5 Steel Flange
Size Range:1/2”-24”
Pressure Range:Class 150,300,400,600,900,1500,2500
ASME B16.47A/B WN & BL Flange
Size Range:26”-60”
Pressure Range:Class 75,150,300,400,600,900JIS B2220
JIS B2220 Flange
Size Range:DN10-DN1500
Pressure Range:5K,10K,16K,20K,30K,40K,63K
DIN 2527 Blind Flange
Size Range:DN10-500
Pressure Range:PN6-PN100
EN1092-1 Type01/05/11 Flange
Size Range:DN10-4000
Pressure Range:PN2.5-PN400
We Can Supply Material Standard of Weld Neck Flange
| Carbon Steel | ASTM/ASME A/SA105 A/SA105N, DIN 1.0402, DIN 1.0460, DIN 1.0619,ASTM A350 LF2 / LF3, ASTM A694 / A694 F52 / F56 / F60 / F65 / F70 / F80 |
| Alloy Steel | ASTM A182 F 5/9/11/12/22/91/92 |
| Stainless Steel | ASTMA182 F304/304L/304H/316/316L/317/310S/321/347/904L |
| Duplex Stainless Steel | ASTM A182 F51, F53, F44 |
| Nickel Alloy | ASTM B564 / ASME SB564, Nickel 200, Nickel 201, Nickel 205, Nickel 205 |
| Hastelloy Alloy | ASTM B564 / ASME SB564, Hastelloy C276 (UNS N10276), C22 (UNS N06022) |
| Aluminium Alloy | 5052 /6061/ 6063 / 2017 / 7075 |
ZIZI ENGEERING CO LTD is professional and experience in servicing and producing all types of forged flanges.We can provide customers with weld neck flange of various materials according to different production standards. Our advanced production equipment and large stock are the reasons why we are the top of flange supplier.
Application
Oil and Gas Industries
Food Processing Industries
Pipeline
Power Industries
Ship Building Industries
Paper Industries
Cement Industries
Chemical Industries
We are professional in manufacturing and exporting flanges in various materials.
