High Precision 70/30 CuNi Capillary Tube C71500 Nickel Alloy Seamless Pipe Durable for Semiconductor
| Product Name | CuNi 90/10 Pipe Fittings C70600 Seamless Butt-weld Elbow Tee Reducer | Material | CuNi 90/10 (UNS C70600 / CuNi10Fe1Mn) |
|---|---|---|---|
| Standard | ASTM B466 / ASME SB466 / ASTM B122 / DIN 86019 / EEMUA 146 / ASME B16.9 / JIS B2220 | Process | Seamless / Welded / Fabricated |
| Connection Type | Butt-weld / Socket-weld / Threaded | Face Type | Round |
| Size Range | 1/2" ~ 24" NB (DN15 ~ DN500) | Application | Marine Piping / Offshore Platforms / Desalination / Power Generation / Heat Exchangers |
| Surface Finish | Pickled & Passivated / Anti-tarnish Oil Treatment | ||
| Highlight | CuNi capillary tube semiconductor,C71500 nickel alloy seamless pipe,copper nickel pipe durable |
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High Precision 70/30 CuNi Capillary Tube C71500 Nickel Alloy Seamless Pipe Durable for Semiconductor
1. Product Description
CuNi 90/10 Pipe Fittings are high-performance piping components manufactured from Copper-Nickel alloy UNS C70600, also known as CuNi10Fe1Mn. This alloy consists of approximately 90% copper and 10% nickel, with small additions of iron and manganese to enhance strength and corrosion resistance . These fittings are available in seamless, welded, or fabricated forms and are designed to create permanent, leak-proof connections in critical piping systems . They are widely recognized as the industry standard for seawater and marine environments .
2. Key Product Specifications
| Parameter | Specification |
|---|---|
| Material | CuNi 90/10 (UNS C70600 / CuNi10Fe1Mn) |
| Standards | ASTM B122, B171, B466, B467 / ASME SB466 / DIN 86019 / EEMUA 146 |
| Dimension Standards | ANSI/ASME B16.9, B16.28, MSS-SP-43 |
| Size Range | 1/2" to 24" NB (DN15 ~ DN600); Schedules: Sch 10S, 40S, 80S, 160S, XXS |
| Connection Type | Butt-weld, Socket-weld, Threaded |
| Face Type | Round |
| Surface Finish | Pickled & Passivated, Anti-tarnish oil treatment |
| Pressure Class | Class 150, 300, 600 (or PN 6 ~ PN 100) |
| Temperature Range | -50°C to +300°C |
3. Applications
CuNi 90/10 fittings are essential in systems that handle seawater and corrosive fluids. Their primary applications include:
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Marine & Shipbuilding: Seawater cooling systems, firefighting mains, ballast, and bilge piping .
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Offshore & Oil & Gas: Platform piping, desalination plants, and heat exchangers .
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Power Generation: Condenser and cooling water systems.
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Industrial: General corrosion-resistant fluid handling .
4. Product Advantages
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Superior Corrosion Resistance: Exceptional resistance to seawater, crevice corrosion, and stress corrosion cracking. In some cases, systems can last a ship's entire lifetime .
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Excellent Weldability & Fabrication: Offers good weldability and can be easily formed and fabricated .
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Cost-Effective Performance: Provides an ideal balance of strength, durability, and cost efficiency compared to other corrosion-resistant alloys .
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Biofouling Resistance: Inherent resistance to marine organism attachment reduces the need for cleaning and maintenance .
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5. Product Features
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Leak-Proof Connections: Butt-weld fittings provide permanent, high-integrity joints ideal for large-diameter piping . Socket-weld fittings offer leak-tight seals for high-pressure, smaller-diameter systems .
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High Strength & Durability: Exhibits high tensile strength and good elongation, allowing the fittings to withstand vibration, bending, and thermal stress without cracking .
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Thermal Stability: Maintains performance at operating temperatures up to 300°C .
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Versatility: Available in a wide range of types, including Elbows, Tees, Reducers, Crosses, Caps, and Unions .
6. Usage Instructions
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Inspection: Before installation, inspect all fittings for damage, dimensions, and wall thickness.
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Preparation: Cut the pipe ends squarely. For butt-weld fittings, bevel the pipe ends for proper weld penetration. For socket-weld fittings, leave a slight gap between the pipe and the socket shoulder to allow for thermal expansion during welding.
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Alignment: Ensure the fitting and pipe are correctly aligned to avoid stress on the joint.
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Welding: Perform welding by qualified personnel using appropriate procedures for copper-nickel alloys. For socket-weld, a fillet weld is applied around the joint .
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Cleaning: After installation, clean the welded area to remove slag and discoloration.
7. Precautions
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Storage: Store in a dry, covered area to prevent damage and corrosion. The protective anti-tarnish coating should remain intact until installation.
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Handling: Avoid impact with hard surfaces to prevent deformation, especially for thin-walled fittings.
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Welding: Use proper welding techniques and filler materials specifically designed for copper-nickel alloys to ensure corrosion resistance and joint integrity.
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Temperature: Do not exceed the maximum operating temperature of 300°C for prolonged periods to avoid material degradation .
8. Shipping Information
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Delivery Time: Typically 7–15 working days for standard orders; larger or customized orders may require 15–30 working days .
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Shipping: Products are shipped by sea, air, or international courier (e.g., FedEx, DHL) based on customer requirements and order size .
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Tracking: A tracking number will be provided once the shipment has been dispatched .
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9. Payment Terms
We accept a variety of payment methods to facilitate smooth transactions. Commonly accepted terms include:
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T/T (Telegraphic Transfer)
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L/C (Letter of Credit)
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Western Union / MoneyGram
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D/A, D/P
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Specific payment terms are negotiable and will be agreed upon based on order size and customer requirements.
10. Packaging
Products are packaged to ensure safe transit and delivery in pristine condition.
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Standard Packaging: Sturdy wooden cases or crates, suitable for export by sea .
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Internal Protection: Fittings are wrapped in bubble wrap or other protective material to prevent damage from impact and moisture .
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Labeling: Each package is clearly labeled with the product name, size, quantity, and order details .
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11. After-Sales (Purchase, Returns & Warranty)
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Order Process: Orders can be placed via our website, email, or phone. A formal quotation will be provided and a contract signed for confirmation.
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Quality Guarantee: All products are manufactured under strict quality control and come with an EN 10204 3.1 Material Test Certificate (MTC). Third-party inspection by classification societies (ABS, DNV, LR, BV, etc.) is available upon request .
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Inspection: We encourage buyers to arrange for independent inspections before shipment to verify quality and specifications.
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Returns & Warranty: We stand behind the quality of our products. Returns will be accepted and refunds or replacements processed for products that fail to meet agreed-upon specifications. Please contact our customer service team to initiate a return or warranty claim.
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Customer Service: Our team of specialists is available to help with product selection, technical support, and after-sales service.

