Yuhong Group Co.,Ltd
| Payment Terms | L/C,T/T |
| Delivery Time | 7 DAYS |
| Packaging Details | PLYWOOD CASE / PALLET |
| Product Name | Nickel Alloy Flange |
| Dimension | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges etc. |
| Standard | ASTM B564, ASME SB564 |
| Material | UNS N08020, Alloy 20 |
| Size | 1/2" to 48" |
| Pressure | Class150/300/600/9001500/2500 |
| Type | Blind Flange,Threaded Flange,Slip On Flange,socket Weld Flange,weld Neck Flange,LAP Joint Flange |
| Flange Face | Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
| Application | Oil and Gas Industry, chemical processing, Marine Engineering,etc |
| High Light | ASTM B564 UNS N08020 Weld Neck Flange, ASME B16.5 Alloy 20 WNRF Flange |
| Brand Name | YUHONG |
| Model Number | ASTM B564 UNS N08020 Alloy 20 WNRF Flange |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C,T/T | Delivery Time | 7 DAYS |
| Packaging Details | PLYWOOD CASE / PALLET | Product Name | Nickel Alloy Flange |
| Dimension | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges etc. | Standard | ASTM B564, ASME SB564 |
| Material | UNS N08020, Alloy 20 | Size | 1/2" to 48" |
| Pressure | Class150/300/600/9001500/2500 | Type | Blind Flange,Threaded Flange,Slip On Flange,socket Weld Flange,weld Neck Flange,LAP Joint Flange |
| Flange Face | Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ) | Application | Oil and Gas Industry, chemical processing, Marine Engineering,etc |
| High Light | ASTM B564 UNS N08020 Weld Neck Flange, ASME B16.5 Alloy 20 WNRF Flange | Brand Name | YUHONG |
| Model Number | ASTM B564 UNS N08020 Alloy 20 WNRF Flange | Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin | CHINA | ||
| High Light | ASTM B564 Alloy 20 WNRF flange ，ASME B16.5 weld neck flange ，UNS N08020 alloy steel flange | ||
ASTM B 564 UNS N08020 / Alloy 20 WNRF Flange Nickel Alloy Weld Neck Flange
ASTM B564 UNS N08020 / Alloy 20 Weld Neck Flange is a premium, high-integrity piping component designed for the most demanding corrosive and high-pressure services. Its strength, durability, and exceptional chemical resistance make it a critical solution in industries where failure is not an option.
When to Specify Alloy 20? Specify Alloy 20 when you need:
Proven resistance to sulfuric acid and phosphoric acid.
Good general corrosion resistance where 316L is failing.
Resistance to Chloride Stress Corrosion Cracking.
A cost-effective solution that avoids the high cost of more exotic alloys like Hastelloy.
Equivalent Material of ASTM B564 UNS N08020 Flange Alloy 20 Weld Neck Flange
| STANDARD | UNS | WERKSTOFF NR. | AFNOR | EN | JIS | BS | GOST |
| Alloy 20 | N08020 | 2.4660 | Z2NCUD31-20AZ | NiCr20CuMo | - | - | - |
Chemical Composition (%) of ASTM B564 UNS N08020 Flange Alloy 20 Weld Neck Flange
| Alloy 20 | Ni | C | Mo | Mn | Si | Fe | Cu | S | P | Cr |
| 32 - 38 | 0.02 max | 2 - 3 | 1 - 2 | 0.7 max | Bal | 3 - 4 | 0.005 max | 0.02 max | 19 - 21 |
Mechanical Characteristics of ASTM B564 UNS N08020 Flange Alloy 20 Weld Neck Flange
| Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 8.1 g/cm3 | 1443 °C (2430 °F) | Psi - 35000 , MPa - 241 | Psi - 80000 , MPa - 551 | 30 % |
ASTM B564 UNS N08020 Weld Neck Flange Nickel Alloy Flange
| Specifications List | ASTM/ ASME B564 / SB564 |
|---|---|
| Standard Flange | BS, DIN, ASME, ANSI, EN |
| Size Chart | 1/2″up to 48″ (15 - 1200NB) |
| Class / Pressure Rating | PN16, 2500#, PN25, 600#, 150#, 300#, 900#, PN10, 1500#, PN64, PN6, PN40 |
| Flange Type | Weld Neck, Blind, Slip on, Socket, Thread, Long Weld Neck ... |
| ASTM Standards | DIN, ANSI/ASME B16.48, B16.5, BS4504, BS 10, B 16.47 Series A & B, EN-1092 |
Key Features & Advantages
Superior Strength in Harsh Environments: The combination of the robust weld neck design and the high-strength Alloy 20 forging makes it capable of withstanding high pressures and temperatures in corrosive service.
Excellent Weldability: The "weld neck" is designed to be butt-welded directly to the pipe, creating a strong, reliable joint. Alloy 20 itself is readily weldable using compatible filler metals (e.g., ER320LR, ENi-6620).
Long Service Life: Its exceptional resistance to a wide range of corrosives minimizes maintenance, downtime, and replacement costs.
Smooth Flow Path: The tapered hub allows for a smooth transition from the pipe to the flange, reducing turbulence and pressure drop
Application
This flange is used in industries where standard stainless steels (304/316) fail due to corrosion.
Chemical Processing Industry (CPI): Reactors, tanks, and piping handling sulfuric acid, phosphoric acid, and other aggressive chemicals.
Pharmaceutical Industry: For processes involving high-purity and corrosive intermediates.
Food and Beverage Processing: Especially in applications with acidic ingredients and chlorinated cleaning agents.
Oil & Gas (Upstream & Midstream): Handling of sour gases (H₂S) and other corrosive wellstream components.
Pulp & Paper Industry: Digesters and bleaching equipment.
Plastic Manufacturing: Plants producing synthetic fibers and polymers.
PT
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2007
Total Annual:
50M-70M
Employee Number:
50~850
Ecer Certification：
Verified Supplier
Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou... Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...
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