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China, Chinese BS 2871 Copper and Copper Alloy Tubes for Plumbing/Heat Exchangers/Marine/Condensers1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Copper AlloyCopper Alloy TubesHeat Exchangers
EZ Steel Industrial Co., Ltd.
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Product Description BS 2871 Copper and Copper Alloy Tubes for Plumbing/Heat Exchangers/Marine/CondensersCategoryMaterial CodeName & DescriptionKey Properties & ApplicationsChemical CompositionMechanical PropertiesInspection & Testing RequirementsTolerancesPart 1Tubes for water, gas & sanitationC101High-conductivity copperVery high electrical conductivity, primarily for electrical conduction rather than pressure piping.Very high copper purity with strict limits on impurities.Varies based on temper (e.g., annealed, hard-drawn); includes tensile strength, elongation, hardness.Dimensional checks, Visual inspection, Mechanical tests (e.g., tensile, flaring, flattening), Hydrostatic testing.Tolerances for outer diameter, wall thickness, and length (straight and coiled tubes) are specified. C106Phosphorus deoxidized copperSuitable for welding; used in pressure applications (water, gas, sanitation systems).Phosphorus content within a specified range; copper purity to standard.Varies based on temper; suitable for forming and welding.Same as above.Same as above. C122Phosphorus deoxidized copper, higher P contentHigher phosphorus content than C106 for enhanced welding and brazing characteristics.Higher maximum phosphorus content than C106; copper purity to standard.Varies based on temper.Same as above.Same as above.Part 2Copper alloy tubes(e.g., Brass, Aluminium Bronze)Copper alloy tubesE.g., Brass (Cu-Zn), Aluminium Bronze; offer varied mechanical and corrosion-resistant properties.Strict limits on alloying elements (e.g., Zinc, Lead, Aluminium).Varies by specific alloy and temper; generally higher strength than pure copper.Dimensional checks, Visual inspection, Mechanical tests (as applicable), Pressure testing (as applicable).Tolerances for outer diameter and wall thickness are specified.Part 3Seamless tubes for heat exchangers(Codes not specified)Seamless copper tubes for heat exchangersUsed in refrigeration, AC units, etc.; require high cleanliness, corrosion resistance, and good thermal conductivity.Very strict controls on copper purity and impurity content.Varies based on temper; must meet specific strength and ductility requirements.Strict dimensional checks, Visual inspection, Pressure testing, Non-destructive Testing (NDT) often required.Dimensional tolerances are very strict.General Requirements All materials must comply with the chemical composition limits for their category.All materials' mechanical properties (tensile strength, elongation, hardness) vary with material temper (e.g., annealed, hard-drawn).All tubes require:- Dimensional checks (OD, wall thickness, straightness)- Visual inspection (surface defects)- Mechanical testing (e.g., tensile, hardness, flaring, flattening)- Hydrostatic/Pressure testing (for pressure applications)- Non-Destructive Testing (if specified)All tubes must conform to diameter, wall thickness, and length tolerances specified in the standard based on type and size. Part / CategoryMaterial CodeAlloy Name / Common DesignationChemical Composition (Key Elements)Primary Applications & NotesPart 1Copper Tubes for Water, Gas, and SanitationC101High-conductivity copper≥ 99.90% CuGeneral purpose, high electrical conductivity. C103Oxygen-free copper (OFHC)≥ 99.95% CuApplications requiring high ductility and absence of oxygen. C106Phosphorus deoxidized copper (Cu-DHP)Cu, low residual PSuitable for welding; water, gas, sanitation systems. C107Phosphorus deoxidized copper (Cu-DHP)Cu, higher P than C106Suitable for welding; enhanced deoxidation. C108Silver-bearing copperCu + AgHigh-strength applications at elevated temperatures. C110Electrolytic tough pitch copper (ETP)≥ 99.90% CuGeneral electrical and plumbing applications.Part 2Copper Alloy TubesCZ10170/30 Brass70% Cu, 30% ZnGood corrosion resistance and formability. CZ10260/40 Brass60% Cu, 40% ZnHigher strength, good hot-working properties. CZ103Admiralty brass70% Cu, 29% Zn, 1% Sn, AsImproved corrosion resistance in water. CZ107Aluminum brass76% Cu, 22% Zn, 2% Al, 0.04% AsHigh corrosion resistance, especially in condensers. CZ108Naval brass62% Cu, 36.75% Zn, 1.25% SnGood resistance to seawater corrosion. CN102Aluminum bronzee.g., CuAl10Fe5Ni5High strength, excellent wear and corrosion resistance. CN107Nickel silverCu-Ni-Zn alloyGood corrosion resistance, silvery appearance.Part 3Seamless Tubes for Heat ExchangersC101, C106, C107(Same as Part 1)(Same as Part 1)Used in heat exchangers; stricter dimensional and quality tolerances.Part 4Copper Alloy Tubes for General EngineeringCZ110Leaded brasse.g., CuZn39Pb3Excellent machining properties (free-cutting). CZ112Free-cutting brassHigh Pb contentSuperior machinability for intricate parts. CS101Phosphor bronzee.g., CuSn4, CuSn6High strength, fatigue resistance, excellent spring properties.Packaging & Storage Requirements: Tubes must be protected from mechanical damage and corrosion. Methods (bundling, boxing, crating) depend on customer requirements. Company Profile Packaging & Shipping Certifications FAQ
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