| Prod Model: |
NO. 10.67307.2100 |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| Size: |
ANSI B 16.5 From 1/2" to 24" and Classes150 to 250 |
| Material: |
Stainless Steel |
| Certification: |
API |
Product Description
The WN Flange is relatively expensive because of its long neck, but is preferred for high stress applications. The neck, or hub, transmits stresses to the pipe, reducing stress concentrations at the base of the Welding-Neck flanges. 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. The bore of the Weld-Neck flange matches the bore of the pipe, reducing turbulence and erosion.
Specification of Stainless Steel Weld Neck Flanges:
1. Stainless Steel: ASTM A 182, A 240
2. Grade : F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904L, Duplex stainless steel UNS S31803, 2205, Super Duplex stainless steel UNS S32750
3. Size: ANSI B 16.5 from 1/2" to 24" and classes150 to 2500 (complete range)
4. Pressure: ANSI class 150 to 2,500
Sealing surface forms of Stainless Steel Weld Neck Flanges:
Raised face (RF)
The scope of European system for stainless steel flanges
Sealing surface type | Nominal pressure PN / MPa (bar) |
| 0.25 | 0.6 | 1.0 | 1.6 | 2.5 | 4.0 | 6.3 | 5.0 | 16.0 | 25.0 |
| -2.5 | -6 | -10 | -16 | -25 | -40 | -63 | -100 | -160 | -250 |
| Raised face (RF) | DN10-300 | DN10-2000 | DN10-1000 | DN10-600 | DN10-400 | DN10-300 | DN10-250 |
| Convex surface (MFM) | - | DN10-600 | DN10-400 | DN10-300 | - |
| Tongue and groove (TG) | - | DN10-600 | DN10-400 | DN10-300 | - |
| Plane (FF) | DN10-3000 | DN10-2000 | - |
| Ring joint face (RJ) | - | DN15-400 | DN15-300 | DN15-250 |
The scope of American system for stainless steel flanges
Sealing surface type | Nominal pressure PN / MPa (Class) |
| 2.0 | 5.0 | 11.0 | 15.0 | 26.0 | 42.0 |
| (150LB) | (300LB) | (600LB) | (900LB) | (1500LB) | (2500LB) |
| Raised face (RF) | DN15-600 | DN15-300 |
| (1/2 "to 24") | (1/2 "-12") |
| Convex surface (MFM) | - | DN15-600 | DN15-65 | DN15-300 |
| (1/2 "to 24") | (1/2 "-2.1 / 2") | (1/2 "-12") |
| Tongue and groove (TG) | - | DN15-600 | DN15-65 | DN15-300 |
| (1/2 "to 24") | (1/2 "-2.1 / 2") | (1/2 "-12") |
| Plane (FF) | DN15-600 | - |
| (1/2 "to 24") |
| Ring joint face (RJ) | DN25-600 | DN15-600 | DN15-300 |
| (1/2 "to 24") | (1/2 "to 24") | (1/2 "-12") |
Applications of Stainless Steel Weld Neck Flanges:
These are mainly used on heat coupling of pipes when there is possibility of expansion of the section while bending stress on the coupling.
Oil Field, Offshore, Water System, Shipbuilding, Natural Gas, Electric Power, Pipe Projects etc.
Package of Stainless Steel Weld Neck Flanges:
The stainless steel flange products are packed according to the international standards and regulations as well as to customer's requests. We would take great care to avoid any damage during storage or transportation of the stainless steel flanges.
Shanghai Metal Corporation is the Leading Manufacturer and Supplier of metal products, building materials and machinery in China, the main customers are the world famous company.
The main metal product are:
Stainless steel strip(201, 202, 301, 304, 316, 316L, 321, 410, 430), aluminum strip, steel tape, Zinc strip, Copper strip.
