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En12451 Copper and Copper Alloy Seamless Tubes for Heat Exchangers1
Copper Alloy, Copper Alloy Tubes, Alloy Seamless Tubes
EZ Steel Industrial Co., Ltd.
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Product Description EN 12451: Copper and Copper Alloy Seamless Tubes for Heat Exchangers1. Primary Purpose and Application:Function: This European Standard specifies the requirements for seamless tubes made of copper and copper alloys intended primarily for use in heat exchangers.Typical Uses: These tubes are designed for applications where efficient heat transfer is critical, such as:Shell and Tube Heat ExchangersCondensers and EvaporatorsRadiators and CoolersOther industrial and marine heat exchange equipment2. Material and Manufacturing:Material: Covers tubes made from tough pitch copper (Cu-DHP) and specific copper alloys (like copper-nickel, CuNi10Fe1Mn) known for their excellent thermal conductivity, corrosion resistance, and suitability for welding and brazing.Process: Tubes are manufactured as seamless (i.e., without a welded seam), typically through a process like extrusion or piercing. This ensures uniformity and strength for pressurized applications.3. Key Properties and Advantages:Excellent Thermal Conductivity: The primary advantage is superior heat transfer efficiency, which is essential for the performance of heat exchangers.Corrosion Resistance: The specified copper alloys offer high resistance to corrosion in various environments, including fresh water, seawater, and steam.Mechanical Strength: Provides good strength and pressure resistance at operating temperatures, as well as resistance to stress corrosion cracking.Formability and Joinability: The tubes are suitable for expanding into tube sheets and for bending. They can be easily joined by brazing or welding.4. Dimensional and Quality Characteristics:Tolerances: Specifies precise dimensional tolerances for outside diameter, wall thickness, and length, which are critical for fitting into tube sheets and ensuring proper fluid flow.Testing: Requires rigorous testing, including:Eddy current testing or hydrostatic testing to verify soundness and leak-tightness.Mechanical property tests (e.g., tensile strength, elongation).Flattening test or drift expanding test to verify ductility.5. Comparison to Other Tubing Standards (e.g., ASTM A53, ASTM A554):Fundamental Difference: EN 12451 is a material-specific and application-specific standard for seamless copper tubes in pressurized heat transfer service.Contrast with Steel Pipe: It is not for structural use (like A554) or for general-purpose/low-pressure fluid conveyance (like A53). Its sole focus is on optimal performance in heat exchange applications.Company ProfileProduct DescriptionDetailed PhotosCOPPER ALLOY CONDE TUBEApplication:Engine cooler power plant condenser, marine heat, exchanger, compressor cooler, petrochemical refinery cooler, motor cooler, seawater desalination evaporator, air conditoning cooling system and other fields.Good characteristics: Thermal conductivity, good conductivity, wear resistance, plasticity, good cold bending property, easy to welding and machining SANITARY PLUMBING COPPER ALLOY PIPEApplications: Various faucet, towel rack, hanger, sanitary ware supporting frame, pipe joints or elbow, sanitary productsGood characteristics: It has a significant effect on killing Escherichia coli, increasing the copper content in the water, and it is good for health. COPPER ALLOY TUBES FOR PETROLEUM INDUSTRYApplications:Oil pump, oil transmission pipeline, engine oil, oil field gas stationGood Characteristics: High hardness, certain intensity, compression strength, corrosion resistance, strong wear resistance Packaging & Shipping Certifications FAQ
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