TOBO INDUSTRIAL (SHANGHAI) CO., LTD
| Packaging Details | Standard Shipping Package |
| Size Rane | 1/2 |
| Payment Terms | T/T, Western Union |
| Length | 75 MM |
| Thread Type | ASME B1.20.1(NPT) |
| Coppercontent | 70% Copper |
| Connection Type | Weld, Thread, Socket Weld |
| Surfacefinish | Smooth, polished or as per customer specification |
| Special Functions | Resistance to corrosion |
| Delivery Time | 15-30 Workdays |
| Application | Pipe Lines Connect |
| Face Type | Raised Face, Flat Face, Ring Type Joint |
| Price Term | CIF CFR FOB Ex-Work |
| Package | Wooden Case, Pallet, etc. |
| Corrosionresistance | High resistance to seawater and marine corrosion |
| Keyword | Copper Flange |
| Temperaturerange | -200°C to 400°C (varies by alloy grade) |
| Product name | CuNi 70/30 Forged Flange Class 150, ASME B16.5 SWRF Corrosion-Resistant |
| Shape | Elbow |
| Standards | ASTM B151, ASME B16.5 |
| Supply Ability | 10Ton/Month |
| Density | 8.9 g/cm³ |
| Weldability | Good |
| Thickness | 3х2,5 mm |
| Advantage | Convenient installation and maintenance |
| Grade | 90/10 Copper Nickle (UNS 70600) |
| Press | 20Bar |
| Technics | Casting |
| Certification | ISO/TUV/SGS |
| Model Number | Copper Nickel Flange |
| Brand Name | TOBO |
| Place of Origin | Shanghai,China |
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Product Specification
| Packaging Details | Standard Shipping Package | Size Rane | 1/2 |
| Payment Terms | T/T, Western Union | Length | 75 MM |
| Thread Type | ASME B1.20.1(NPT) | Coppercontent | 70% Copper |
| Connection Type | Weld, Thread, Socket Weld | Surfacefinish | Smooth, polished or as per customer specification |
| Special Functions | Resistance to corrosion | Delivery Time | 15-30 Workdays |
| Application | Pipe Lines Connect | Face Type | Raised Face, Flat Face, Ring Type Joint |
| Price Term | CIF CFR FOB Ex-Work | Package | Wooden Case, Pallet, etc. |
| Corrosionresistance | High resistance to seawater and marine corrosion | Keyword | Copper Flange |
| Temperaturerange | -200°C to 400°C (varies by alloy grade) | Product name | CuNi 70/30 Forged Flange Class 150, ASME B16.5 SWRF Corrosion-Resistant |
| Shape | Elbow | Standards | ASTM B151, ASME B16.5 |
| Supply Ability | 10Ton/Month | Density | 8.9 g/cm³ |
| Weldability | Good | Thickness | 3х2,5 mm |
| Advantage | Convenient installation and maintenance | Grade | 90/10 Copper Nickle (UNS 70600) |
| Press | 20Bar | Technics | Casting |
| Certification | ISO/TUV/SGS | Model Number | Copper Nickel Flange |
| Brand Name | TOBO | Place of Origin | Shanghai,China |
| High Light | CuNi 70/30 forged flange ，ASME B16.5 SWRF flange ，corrosion-resistant copper nickel flange | ||
CuNi 70/30 Forged Flange Class 150, ASME B16.5 SWRF Corrosion-Resistant
1.Product Description
This product is a high-performance Copper Nickel Socket Weld Flange manufactured from CuNi 70/30 (UNS C71500) alloy, fully compliant with ASME B16.5 standard and rated Class 150. The socket weld (SW) connection involves inserting the pipe into a recessed bore of the flange followed by a fillet weld around the pipe's outer diameter. This design ensures a smooth bore and strong, permanent joint, making it especially suitable for high-pressure and high-integrity piping systems. The CuNi 70/30 alloy provides superior resistance to seawater and biofouling.
2. Applications
The CuNi 70/30 flange is essential in environments demanding high corrosion resistance and biofouling protection. Primary applications include:
Shipbuilding & Marine Repairs: Seawater cooling systems, firefighting lines, ballast and sanitary systems.
Offshore & Coastal Infrastructure: Desalination plants (multi-stage flash and reverse osmosis), offshore platforms, and tidal energy systems.
Power Industry: Cooling water circuits in fossil fuel and nuclear power stations.
Industrial Heat Transfer: Heat exchangers, condensers, and evaporator tubing.
Defense & Naval: Submarine pipework and surface vessel systems (compliant with DEF STAN 02-879).
3. Product Functions
Secure Pipe Joining: Creates a permanent, leak‑tight fillet‑welded connection that withstands high pressure and vibration.
System Assembly & Disassembly: Allows piping systems to be assembled and later dismantled for inspection, repair, or modification.
Flow Management: Facilitates connections to valves, pumps, elbows, and tees to direct fluid flow.
Pressure Isolation: When combined with a blind flange, it can isolate specific sections of a pipeline for maintenance.
Load Transfer: Transfers mechanical loads (tension, compression, bending) across bolted flange joints.
4.Technical Specifications
| Parameter | Value / Range |
| Material Grade | CuNi 70/30 (UNS C71500) |
| Standard | ASME B16.5 – Class 150 |
| Connection Type | Socket Weld (SW) |
| Nominal Size (NPS) | 1/2″ to 24″ (DN15 to DN600) |
| Flange Face | Raised Face (RF) / Flat Face (FF) |
| Cu Content | 65.0% – 70.0% |
| Ni Content (incl. Co) | 29.0% – 33.0% |
| Fe Content | 0.40% – 1.0% |
| Mn Content | ≤ 1.0% |
| Tensile Strength (min) | 450 MPa (65 ksi) |
| Yield Strength 0.2% (min) | 170 MPa (25 ksi) |
| Elongation (min) | 30% |
| Hardness (max) | 85 HRB |
| Density | 8.94 g/cm³ |
| Melting Range | 1170 – 1240 °C |
FAQ
1. Are you trading company or manufacturer ?
We are manufacturer ,You can see the certification.
2. How long is your delivery time?
Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
3. Do you provide samples ? is it free or extra ?
Yes, we could offer the sample for free charge but need pay the cost of freight.
4. What is your terms of payment ?
Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification：
Verified Supplier
TOBO INDUSTRIAL (SHANGHAI) Co., Ltd. is a professional supplier of pipeline products, located in Shanghai, with convenient transportation and beautiful environment. Dedicated to strict quality control and customer service. Our experienced staff can readily discuss your requirements to ensu... TOBO INDUSTRIAL (SHANGHAI) Co., Ltd. is a professional supplier of pipeline products, located in Shanghai, with convenient transportation and beautiful environment. Dedicated to strict quality control and customer service. Our experienced staff can readily discuss your requirements to ensu...
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