Aluminium & Copper

C70600 copper-nickel pipe is a typical 90/10 Cu-Ni alloy pipe, primarily composed of copper and nickel, with small additions of iron, manganese, and other elements. It offers excellent resistance to seawater corrosion, erosion- corrosion, and good thermal conductivity. Owing to these properties, C70600 copper-nickel pipes are widely used in marine heat exchangers, seawater cooling systems, central cooling systems on vessels, and offshore engineering equipment. In seawater environments, a dense and stable protective film gradually forms on the surface of C70600 copper-nickel pipes. This film effectively slows the attack of seawater, salt spray, chloride ions, and other corrosive marine media on the pipe substrate, resulting in a long service life and reduced maintenance requirements. During vessel operation, heat exchangers must continuously handle seawater, cooling water, or other fluids while maintaining stable heat-transfer efficiency under ongoing temperature variations and fluid erosion. Conventional metal pipes may experience corrosion, pitting, leakage, and frequent maintenance in marine environments. Through a well-balanced alloy composition, C70600 copper-nickel alloy achieves an excellent balance among seawater- corrosion resistance, mechanical properties, and heat-transfer performance. It is therefore an important material choice for marine shell-and-pipe heat exchangers and related cooling equipment. Chemical Composition and Material Standards The typical chemical composition of C70600 is as follows: Copper (Cu): Balance, typically 86.5% minimum Nickel (Ni): 9.0–11.0% Iron (Fe): 1.0–1.8% Manganese (Mn): ≤1.0% Lead (Pb): ≤0.05% Zinc (Zn): ≤1.0% Products are manufactured in strict accordance with international standards such as ASTM B111 for seamless pipes and ASTM B466/B467 for seamless/welded pipes. They can also comply with MIL-T-16420K military specifications, EN 12451 European standards, and GB/T 8890 Chinese national standards. Each batch is supplied with a spectrographic analysis report and mechanical-property test certificate, ensuring full traceability throughout the production process. Why C70600 Is an Ideal Choice for Marine Heat Exchangers 1. Excellent Corrosion Resistance C70600 copper-nickel pipes demonstrate outstanding corrosion resistance in seawater, marine atmospheric, and chloride-containing environments. Their corrosion resistance is superior to that of ordinary copper pipes and brass pipes. They can effectively resist marine biofouling and chemical corrosion, ensuring long-term stable operation of heat exchangers. 2. Excellent Thermal Conductivity The high thermal conductivity of copper enables C70600 copper-nickel pipes to provide efficient heat transfer during operation. This allows heat exchangers to maintain high heat-exchange efficiency, reduce energy consumption, and improve vessel operating efficiency. 3. Excellent Mechanical Properties C70600 copper-nickel pipes offer good mechanical properties, including high strength, ductility, and hardness. They can withstand various mechanical stresses encountered during vessel operation, ensuring the structural integrity and stability of the heat exchanger. 4. Excellent Fabricability C70600 copper-nickel pipes are easy to process and form. They can be cut, bent, welded, and otherwise fabricated according to customer requirements. This makes installation and maintenance more convenient and flexible. 5. Excellent Resistance to Biofouling The surface of C70600 copper-nickel pipes has natural anti-biofouling properties, effectively preventing marine organisms from adhering to and growing on the pipe wall. This helps keep the piping clean, reduces heat- exchanger flow resistance, and improves operating efficiency. Typical Applications in Marine Heat Exchangers C70600 copper-nickel pipes are widely used in the following marine systems: 1.Main and auxiliary condensers and coolers: Standard piping material for seawater cooler bundles of main engines and auxiliary engines. 2.Seawater cooling piping: Fittings, elbows, and straight pipes for vessel-wide seawater cooling systems. 3.Central coolers: Heat-transfer pipes for plate-type and shell-and-pipe heat exchangers. 4.Oil coolers: Lubricating-oil coolers using seawater or freshwater as the cooling medium. 5.Freshwater generators and seawater desalination units: Pipe bundles for evaporators and condensers.

Minimum Order: 1 bags

In modern shipping and seawater desalination industries, equipment reliability and durability are essential. UNS C70600 90/10 copper nickel seamless pipes are high-performance piping materials that offer exceptional corrosion resistance, thermal stability, and mechanical properties. They are an ideal choice for marine cooling systems and seawater desalination equipment. What Is UNS C70600 90/10 Copper Nickel Pipe? UNS C70600, also known as CuNi 90/10 or CuNi10Fe1Mn, is a copper-nickel alloy based on copper with approximately 10% nickel, as well as controlled additions of iron and manganese. The term “90/10” generally refers to the approximate ratio of copper and nickel in the alloy-about 90% copper and 10% nickel. Compared with standard copper pipes or carbon steel pipes, C70600 copper nickel alloy provides superior corrosion resistance in flowing seawater, mildly polluted seawater, saltwater, and certain chloride-containing media. During service, a dense and stable protective film forms on the material surface, improving its long-term performance in marine environments. C70600 copper nickel alloy also offers good thermal conductivity and fabrication properties. It can be welded, bent, expanded, flared, and processed using other conventional pipe fabrication methods. Therefore, it is highly suitable for complex piping layouts in shipbuilding and offshore engineering applications. Main Advantages of C70600 90/10 Copper Nickel Seamless Pipes 1. Outstanding Seawater Corrosion Resistance 90/10 copper nickel alloy performs reliably in both stagnant and flowing seawater. It resists chloride-induced pitting and crevice corrosion and can withstand alternating wet-dry exposure, tidal splash zones, and seawater corrosion. A dense protective surface film forms naturally on the pipe, helping isolate the base material from seawater attack over the long term and significantly reducing the risk of pipe perforation and leakage. 2. Natural Resistance to Marine Biofouling Copper nickel materials naturally inhibit the attachment of marine organisms, including barnacles, algae, and shellfish. This helps reduce biological fouling in pipelines, minimize blockage and heat-transfer efficiency losses, and lower cleaning and maintenance costs. These properties make C70600 pipes particularly suitable for seawater cooling and desalination systems requiring long-term continuous operation. 3. Excellent Heat Transfer Performance C70600 copper nickel pipes offer good thermal conductivity and stable heat- transfer efficiency. They are suitable for marine engine coolers, condensers, seawater desalination heat exchangers, and other heat-transfer equipment, helping cooling and water-production systems operate efficiently and continuously. 4. High Strength and Good Ductility The Pipes provide balanced mechanical properties and can be bent, expanded, and flanged during fabrication. They offer good fatigue resistance and can withstand seawater pressure fluctuations. The seamless structure eliminates potential corrosion concerns associated with longitudinal weld seams, making these pipes suitable for high-pressure seawater piping systems. 5. Long Service Life and Low Maintenance Cost Under properly controlled seawater service conditions, C70600 copper nickel pipes provide a long service life and are less susceptible to unexpected leakage. This helps reduce economic losses caused by shutdowns, inspections, and repairs in vessels and seawater desalination plants. Main Applications Shipbuilding Industry Ship seawater cooling systems Condensers and heat exchangers Ballast water pipelines Main engine and auxiliary engine cooling circuits Piping systems for commercial vessels, offshore support vessels, and research ships Seawater Desalination Projects Heat exchanger Pipe bundles for reverse osmosis systems Multiple-effect distillation (MED) systems Multi-stage flash (MSF) desalination systems Seawater inlet and outlet pipelines Other Marine Engineering Applications Seawater pipelines on offshore platforms Seawater cooling pipelines for coastal power plants Port seawater conveying systems

Minimum Order: 1 bags

We offers Aluminum Extrusion 6063 Scrap with 1% to 5% attachments, suitable for a variety of industrial applications including recycling, alloy production, and manufacturing processes. The scrap is sourced from Europe and prepared for export, with a monthly supply of 200 tons. Material is available in loose form or tight bundles based on buyer specifications, supporting easy handling and transport. Packaging and shipment schedules can be adjusted to meet specific buyer requirements. Scrap Specifications: • Type: Aluminum Extrusion 6063 Scrap • Attachment: 1% to 5% • Quantity: 200 Tons Monthly Basis • Packing: Loose and Tight Bundles • Loading Port: Douala/ Dar es Salaam • Payment Terms: 50% Depositand 50% After Issuing Document • Shipping Terms: FOB or CIF +237651357366 mokumcharles@gmail.com

Minimum Order: 50

We are Offering Copper Wire Scrap with 200 MT available for export from the Africa. This Copper Wire Scrap is suitable for copper recyclers, scrap processors, metal recovery companies, foundries, and manufacturers requiring recyclable copper material. It can be used for copper recovery, recycling, remelting, and other metal processing applications. Buyers sourcing Philippines-origin Copper Wire Scrap can discuss their required specifications and purchasing needs. This Copper Wire Scrap is available for overseas buyers across various markets. Scrap Specifications: • Scrap Type: Copper Wire Scrap • Quantity: 200 MT • Origin: Africa • Payments Terms: T/T • Shipping Terms: CIF, FOB • Export Markets: Asia Pacific, Middle East, Europe, Africa, North America

Minimum Order: 50

We are offering Aluminum Extrusion Scrap for sale to buyers worldwide. We currently have 200 MT available for shipment, with packaging arranged according to buyer requirements. The material originates from the Africa and is suitable for companies involved in Aluminum Recycling, Secondary Aluminum Production, and Metal Processing. We welcome inquiries from Recyclers, Manufacturers, Foundries, Metal Traders, and Industrial Buyers across Asia Pacific, Europe, the Middle East, North America, and other international markets looking for a dependable source of Aluminum Extrusion Scrap. Our Aluminum Extrusion Scrap is suitable for Aluminum Recycling, Secondary Aluminum Production, Aluminum Billet Manufacturing, Extrusion Manufacturing, Alloy Production, Metal Recovery, Automotive Components, Construction Materials, and Industrial Manufacturing Applications. mokumcharles@gmail.com +237651357366

Minimum Order: 50

In marine environments such as shipbuilding, offshore platforms, and seawater transmission systems, piping materials are continuously exposed to severe conditions including seawater corrosion, erosion, marine biofouling, and cyclic temperature changes. Ordinary carbon steel and stainless steel pipes can be prone to rusting, perforation, short service life, and high maintenance costs. C70600 copper-nickel marine piping, also known as 90/10 copper-nickel alloy piping, offers outstanding seawater-corrosion resistance and stable mechanical properties. It is therefore a mainstream choice for marine piping systems and is widely used in ship seawater cooling systems, ballast-water pipelines, fire- fighting lines, and offshore-platform process pipelines. Product Overview This product is a high-quality C70600 copper-nickel alloy seamless pipe, corresponding to Chinese grade BFe10-1-1 (B10 iron cupronickel). It can be manufactured in accordance with international standards such as ASTM B111, ASTM B466, and ASTM B122. Certifications from major classification societies, including CCS, ABS, DNV, LR, BV, and others, can be provided upon customer request. The alloy uses copper as the base metal and contains 9%-11% nickel, 1.0%-1.5% iron, and an appropriate amount of manganese, forming a stable single-phase solid-solution microstructure. Nickel significantly improves corrosion resistance and strength; iron effectively enhances resistance to erosion corrosion caused by flowing seawater; and manganese further improves processing performance and corrosion resistance. Key Advantages of 90/10 Copper-Nickel Pipe 1. Excellent Seawater Corrosion Resistance Copper-nickel alloy quickly forms a dense and stable protective oxide film when exposed to seawater. This film effectively resists pitting corrosion, crevice corrosion, and erosion corrosion caused by high-velocity seawater. The material performs reliably in both stagnant and flowing seawater, greatly reducing the risk of leakage. It also naturally inhibits the attachment of marine organisms such as barnacles, shellfish, and algae, reducing pipeline blockage caused by biofouling and lowering cleaning and maintenance frequency. 2. Stable Mechanical Properties C70600 copper-nickel pipe has good tensile strength and toughness. It is not prone to brittle fracture under low-temperature conditions and performs well under vibration, impact, and cyclic loads encountered during vessel operation. The material also offers excellent fabrication performance and supports bending, welding, and expanding, making on-site installation convenient. 3. Good Thermal Conductivity Its good thermal conductivity makes it suitable for ship seawater cooling systems. Heat-transfer efficiency remains stable during long-term operation, without the performance degradation caused by rust or severe corrosion, helping ensure the reliable operation of marine power systems. 4. Fatigue Resistance and Long Service Life Compared with carbon steel piping, C70600 copper-nickel pipe provides a longer service life in marine environments. It reduces shutdown time, inspection requirements, replacement frequency, and overall maintenance costs, making it especially suitable for long-term offshore operations. 5. Natural Resistance to Marine Biofouling In natural seawater, C70600 continuously releases trace amounts of copper ions, effectively inhibiting the growth and attachment of barnacles, shellfish, and other marine organisms. This can significantly reduce the need for chemical anti-fouling treatment and pipeline cleaning. 6. Excellent Weldability and Fabrication Performance C70600 can be reliably joined using TIG or MIG welding processes. ERCuNi welding wire with argon shielding gas is recommended. The material is also suitable for cold drawing, rolling, stamping, and other forming processes.

Minimum Order: 1 bags

We supply C70600 copper-nickel seamless pipes conforming to ASTM B466 / B466M, also known as 90/10 copper-nickel alloy seamless tubes. Based on copper with approximately 10% nickel and small additions of iron and manganese, this alloy offers excellent seawater corrosion resistance, resistance to flowing seawater erosion, good weldability, and excellent formability. It is one of the most commonly used materials for seawater cooling systems, condensers, heat exchangers, and marine piping systems. Compared with ordinary copper tubes, carbon steel pipes, and stainless steel pipes, C70600 copper-nickel alloy provides excellent overall service performance in flowing seawater, mildly polluted seawater, oxygenated seawater, and certain marine environments. In seawater service, the material surface gradually forms a stable protective film, effectively reducing the risk of uniform corrosion and improving long-term operational reliability. Advantages of Marine C70600 Copper-Nickel Pipes 1. Excellent Seawater Corrosion Resistance C70600 copper-nickel seamless pipes are suitable for natural seawater, circulating seawater, brackish water, and certain industrial cooling-water environments. They provide good resistance to uniform seawater corrosion, crevice corrosion, and marine atmospheric corrosion, making them particularly suitable for piping and heat-exchange systems exposed to seawater over long periods. 2. Good Resistance to Erosion and Flowing Seawater In seawater cooling systems, areas near elbows, valves, pump outlets, and locations with changing flow velocities can be susceptible to erosion. C70600 copper-nickel alloy offers good resistance to flowing seawater erosion and is suitable for piping sections subject to demanding flow velocity, sand content, and operating conditions. 3. Good Resistance to Marine Biofouling Copper-nickel alloys provide a certain degree of resistance to marine biofouling in seawater environments. This helps reduce the adhesion of microorganisms, shellfish, and algae to tube walls, thereby lowering the risks of pipe blockage, reduced heat-transfer efficiency, and increased maintenance frequency. 4. Excellent Weldability and Fabrication Properties C70600 copper-nickel seamless pipes feature good cold-working, bending, flaring, reducing, and welding properties. They can meet the requirements of on-site marine piping installation, prefabrication, flange connections, welded assembly, and matching with complex fittings. 5. Long Service Life and Lower Maintenance Costs For seawater systems, the initial material purchase cost is not the only consideration. Selecting suitable copper-nickel alloy piping can help reduce total operating costs associated with corrosion perforation, leakage-related shutdowns, frequent replacements, and maintenance. Main Marine Applications Seawater cooling circuits: Engine cooling, central coolers, and auxiliary heat exchangers. Marine and offshore piping: Bilge and ballast water lines, firefighting systems, and deck piping. Seawater desalination plants: Brine heaters, evaporators, and intake manifolds. Shipbuilding: Naval vessels, commercial cargo ships, luxury yachts, and FPSO units.

Minimum Order: 1 bags

New Copper Wire Scrap mill berry We supply copper scrap with high quality and competitive price. 1) Our copper scrap includes wires, tubes, and plates, etc. 2)The size is chips or other. 3) Copper content meetS customer's need. Application: Electrical, light industry, machinery, national defense industry .Copper Scrap is industry a important sources of the raw materials, all kinds of can be recycled Recycling waste production with copper NAME Copper Scrap Wire (Millberry) 99.9% ANALYSIS ITEM STANDARD( , %) RESULTS(%) Purity (Wt%) ≥99.78 99.9% CARB , ON 0.03% 0.03% COBLET , <0. 001 0.0009 IRON 0. 005% 0.005% PHOSPHORUS <0. 01% 0.009% SULPHUR <0. 01% 0.009% ZINC 0. 003% 0.003% copper scrap (2) Copper Scrap wire, Cable copper wires Purity: 99.9% MIN Grade: Grade A

Minimum Order: 5 dozens

Pure 99.9% aluminium ubc scrap Aluminium Scrap We are leading Importers and suppliers of Aluminium Scrap. Aluminium scrap is imported from various countries where we have tie-up with scrap yards. The scrap is segregated properly at these scrap yards and shipped as per ISRI classifications. He scraps have very low or nil attachments which enables the end user to use the scrap without further inspection. This saves valuable time for the end users resulting in lower effective cost.Further we offer these Scraps in customized solutions as per the requirement of the client. These scraps help them in serving varied purposes of different industries mainly Extrusion and castingSalient features of Aluminium scraps.

Minimum Order: 5 dozens

High-quality copper scrap available for wholesale and international supply. Suitable for recycling, copper recovery, smelting, refining, and industrial manufacturing applications. Material specifications, grade, purity, packaging, and availability can be confirmed according to the buyer's requirements.

According to the deformation method, it is divided into ordinary spinning, strong spinning and shrinking spinning. Ordinary spinning uses the spinning wheel to roll and pressurize along the surface of the workpiece to gradually deform the workpiece, which is suitable for processing thin-walled parts. Strong spinning increases the spinning force and reduces the contact area between the spinning wheel and the workpiece, so that the material produces a larger deformation in a smaller deformation area, which can improve material utilization and part strength. Spinning process characteristics It has high precision and can process complex shaped parts with high dimensional accuracy, such as rocket engine casings, aircraft landing gear, etc., to meet the strict requirements of part accuracy in the aerospace field.

At USMS, we are committed to providing our customers with comprehensive metal fabrication and design services designed to support the needs of projects at all stages of development. Whether you are in the early stages of conception or nearing completion of your project, our professional team provides first-class services from engineering support to build-to- print, tooling and pr , ototyping. As market demands grow, we continue to expand our service range to meet our customers’ unique needs with the latest and most innovative solutions. Our Build To Print Metal Forming And Fabrication services and solutions are designed for precision and customization. Using drawings provided by customers and our advanced custom metal processing and manufacturing technology, we ensure that each highly specialized product is precisely met to all specifications. We are particularly good at processing a variety of materials and manufacturing large-scale, high-precision steel products with complex geometries.

We are pleased to present our offer for Fridge and Air Conditioner Compressor Scrap, suitable for copper and metal recovery operations. Product Details Product: Fridge / Air Conditioner Compressor Scrap Compressor Weight Range: 2 kg, 4 kg, 6 kg, 8 kg, 10 kg, and 12 kg Voltage: 220–240 V / 50–60 Hz Cooling Capacity: 90–190 W Displacement: 5.99–12.53 cm³ Copper Content: 99.98% (with internal copper coil and connection box) Condition: Oil-free, Freon-free, environmentally safe Material Origin: Derived from refrigerators and air-conditioning units Quality: High-grade compressor scrap suitable for recycling and copper extraction Packing & Loading Packing: Loose loaded directly into container and Loading port Hamburg port Germany and Aarhus port Denmark. Loading Capacity: 25–28 MT per 20’ HQ container Minimum Order Quantity (MOQ): 1 × 20’ HQ containers Price & Terms Price: EURO $350/MT (CIF) Payment Terms: 30% advance payment by T/T bank transfer with commercial invoice and balance after verify copy of Bill of lading at destination port. 70% balance payable upon issuance of complete shipping documents (Bill of Lading, Invoice, Packing List, and related certificates) Documentation & Supply Assurance All shipments are accompanied by standard export documentation and undergo pre-loading inspection to ensure consistent quality and compliance with buyer requirements. Best regards,

Minimum Order: 26000

We produce high-efficiency extruded aluminum heat sink profiles for thermal cooling of all kinds of electronic equipment. Our heat sinks adopt premium 6063-T5 & 6061-T6 aluminum alloy, with excellent thermal conductivity, fast heat dissipation, light weight and strong anti-corrosion performance. Integrated fin structure greatly expands heat exchange area to stabilize equipment operating temperature. Available surface treatment: silver anodizing, black anodizing, powder coating, effectively improving oxidation resistance and service life. We provide full customized service: different fin density, width, height and length as per your drawings; deep processing including cutting, drilling, tapping, CNC milling, mounting hole punching. OEM & ODM custom molds are supported. Wide application: LED lighting, power inverters, industrial control equipment, new energy chargers, communication equipment, automotive electronic modules and household electrical appliances. Our factory in Foshan owns full automatic extrusion lines and strict QC inspection. Factory direct price, stable mass delivery, flexible MOQ. Electronic manufacturers, cooling solution suppliers and electronics assembly factories globally are welcome to send drawings for competitive quotation. Full dimension data, cross-section drawings and technical details can be checked on our official page: https://www.aluleader.com/product/industr , ial-aluminium- profiles/extruded-aluminum-heat- , sink/

Minimum Order: 10 long tons