Yuhong Group Co.,Ltd
Yuhong Holding Group Co.,LTD
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Water Desalination ASTM A182 F51(UNS S31803) Duplex Steel Weld Neck RF Flange B16.47
Specifications
ASTM A182 F51(UNS S31803) WNRF Flange ANSI B16.47:
1. Material: F51 (S31803)
2. Size: 30"
3. Standard: ANSI B16.47
4. Pressure: 300#
A weld neck flange (also known as a high-hub flange and tapered hub flange) is a type of flange. There are two designs. The regular type is used with pipes. The long type is unsuitable for pipes and is used in process plant. A weld neck flange consists of a circular fitting with a protruding rim around the circumference. Generally machined from a forging, these flanges are typically butt welded to a pipe. The rim has a series of drilled holes that permit the flange to be affixed to another flange with bolts.
Such flanges are suitable for use in hostile environments that have extremes of temperature, pressure or other sources of stress. The resilience of this type of flange is achieved by sharing the environmental stress with the pipe with which it is welded. This type of flange has been used successfully at pressures up to 5,000 psi.
Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| S31803 | Min Max | - 0.030 | - 2.00 | - 1.00 | - 0.030 | - 0.020 | 21.0 23.0 | 2.5 3.5 | 4.5 6.5 | 0.08 0.20 |
| S32205 | Min Max | - 0.030 | - 2.00 | - 1.00 | - 0.030 | - 0.020 | 22.0 23.0 | 3.0 3.5 | 4.5 6.5 | 0.14 0.20 |
| Type | UNS F51(S31803) WNRF Flange |
| Size | Size: 30" Pressure: 300# |
| Standards | SO, WN, SW, TH, LJ, BL, PL, etc |
| Material | Stainless Steel: ASTM A403 WP304, 304L, 310, 316, 316L, 321, 347, 904L Carbon Steel: ASTM A234 WPB, WPC ASTM A105 WPHY 42, 46, 52, 56, 60, 65, 70 Alloy Steel: ASTM A234 WP1, WP5, WP9, WP11, WP22, WP91 Duplex Stainless Steel: F51, 2205, F53, 2507, etc |
| Surface treatment | Chamfering |
| Applications | Petroleum,chemical,power,gas,metallurgy, shipbuilding, construction, etc |
Applications:
1. Petrochemical industry
2. Pharmaceutical industry
3. Food industry
4. Aviation and aerospace industry
5. Architectural decoration industry
6. Oil and gas industry
Other Features:
1) Chemical and Physical characteristic: durable, corrosion resistant and high-temperature resistant
2) We also produce flange with special specifications according to customers’ requirements;
Where can we find the high quality ANSI B16.47 ASTM A182 UNS S31803 WNRF Flange 30 Inch SCH40S CL300.
