Yuhong Group Co.,Ltd
| Payment Terms | T/T,L/C |
| Supply Ability | 10000 PCS /Month |
| Delivery Time | Depends On Quantity |
| Packaging Details | Wooden Cases |
| Standard | ASTM B283, ASME B16.5 |
| Grade | C70620 (Cupronickel 70/30), Copper-Nickel Alloy (Cu70-Ni30) |
| Product Type | Weld Neck (WN) Flange, Raised Face (RF) |
| Pressure Class | Class 150, 300, 600, 900, 1500 |
| Size Range | 1/2” – 24” (DN15 – DN600), Customizable |
| Surface Treatment | Pickled & Passivated (P/P), Polished, Bright Annealed, Natural Finish |
| Brand Name | YUHONG |
| Model Number | ASTM B462 C276 FLANGE |
| Certification | ABS, BV, ISO, ASTM, SGS, LR |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | T/T,L/C | Supply Ability | 10000 PCS /Month |
| Delivery Time | Depends On Quantity | Packaging Details | Wooden Cases |
| Standard | ASTM B283, ASME B16.5 | Grade | C70620 (Cupronickel 70/30), Copper-Nickel Alloy (Cu70-Ni30) |
| Product Type | Weld Neck (WN) Flange, Raised Face (RF) | Pressure Class | Class 150, 300, 600, 900, 1500 |
| Size Range | 1/2” – 24” (DN15 – DN600), Customizable | Surface Treatment | Pickled & Passivated (P/P), Polished, Bright Annealed, Natural Finish |
| Brand Name | YUHONG | Model Number | ASTM B462 C276 FLANGE |
| Certification | ABS, BV, ISO, ASTM, SGS, LR | Place of Origin | CHINA |
| High Light | Cupronickel 70/30 weld neck flange ，ASTM B283 C70620 RF flange ，forged steel raised face flange | ||
ASTM B283 C70620 WN RF Flange is a high-performance cupronickel alloy forged flange, strictly manufactured in accordance with ASTM B283 (material standard for copper-nickel alloy forgings) and ASME B16.5 (dimensional standard for flanges). C70620 (commonly known as Cupronickel 70/30) is a premium copper-nickel alloy composed of 70% copper and 30% nickel, supplemented by trace alloying elements, which is famous for its excellent corrosion resistance, especially outstanding resistance to seawater corrosion, erosion corrosion and biofouling. As a Weld Neck (WN) flange with Raised Face (RF) structure, it has the advantages of high structural strength, reliable sealing performance and strong connection stability, specially designed for marine, offshore and other harsh corrosive industrial piping systems, and widely used in marine engineering, seawater desalination, coastal power generation and other key fields.
| Alloy Grade | Cu | Ni | Fe | Mn | C | Si | P | S | Other |
|---|---|---|---|---|---|---|---|---|---|
| ASTM B283 C70620 (Cupronickel 70/30) | 68.0-72.0 | 28.0-32.0 | 0.4-1.0 | 0.5-1.0 | ≤0.05 | ≤0.15 | ≤0.015 | ≤0.015 | ≤0.5 (Total) |
| Mechanical Property | Standard Requirement (Min.) | Typical Value (Solution Annealed) |
|---|---|---|
| Yield Strength (Rp0.2), MPa | ≥170 | 180-220 |
| Tensile Strength (Rm), MPa | ≥450 | 460-520 |
| Elongation (A), % | ≥35 | 40-50 |
| Hardness (HB), Brinell | ≤140 | 110-130 |
| Impact Toughness (KV), J (20℃) | ≥120 | 130-180 |
| Max. Working Temperature | 260℃ (Long-term) | 260℃ |
| Test Type | Standard |
|---|---|
| Chemical Composition Analysis (PMI) | Spectrometer (XRF/OES), ASTM E1019 |
| Tensile & Impact Test | ASTM E8/E8M, ASTM A370, Charpy V-Notch |
| Hardness Test | ASTM E10 (Brinell), ASTM E18 (Rockwell), Vickers |
| Solution Annealing Inspection | ASTM B283, Metallographic Microstructure Test |
| Corrosion Resistance Test | ASTM G48 (Pitting/Crevice), ASTM B117 (Salt Spray), ASTM G31 (Immersion Test in Seawater) |
| Non-Destructive Testing (NDT) | UT (Ultrasonic), MT (Magnetic Particle), PT (Liquid Penetrant) |
| Hydrostatic/Pneumatic Pressure Test | ASTM B283, ASME B16.5 |
| Dimensional & Visual Inspection | ASTM B283, ASME B16.5, CMM, Gauge Inspection |
| Material Test Certificate (MTC) | EN 10204 3.1/3.2, ASTM B283 |
| Industry Field | Typical Applications |
|---|---|
| Marine Engineering & Shipbuilding | Marine engine cooling pipelines, shipboard seawater systems, offshore platform piping, ship hull piping connections, marine auxiliary equipment flanges |
| Seawater Desalination | Desalination plant seawater intake/discharge pipelines, reverse osmosis system flanges, brine treatment equipment connections, desalination auxiliary pipelines |
| Coastal Power Generation | Coastal thermal power plant seawater cooling systems, nuclear power plant auxiliary seawater pipelines, power station condenser flanges, circulating water system connections |
| Offshore Oil & Gas | Offshore oil platform seawater pipelines, offshore drilling equipment corrosive media connections, marine oil transportation auxiliary pipelines flanges |
| Coastal Industrial Equipment | Coastal chemical plant seawater-based pipelines, coastal wastewater treatment equipment, coastal aquaculture equipment connections, harbor engineering piping |
| Other Marine-Related Fields | Marine water treatment equipment, coastal bridge water pipelines, marine research equipment piping, offshore wind power plant seawater cooling flanges |
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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