Custom Tungsten Copper Fabrication Services for Unique Specifications¹

Product Description As a distinguished manufacturer with a proud history spanning 26 glorious years, Xi'an Kefeng Powder Metallurgy Co., Ltd. specializes in the production of premium tungsten alloy products, with tungsten copper being one of our flagship offerings. Our products are celebrated worldwide, with exports reaching numerous countries across the globe.Product mechanical and physical propertiesCompositionDensity (g/cm3)Electrical Conductivity (IACS% Min.)Thermal Conductivity (W/m-K-1)Hardness (HRB Min.)WCu 70/3014.052.123095WCu 75/2514.845.222099WCu 80/2015.643200102WCu 90/1016.7532.5180107Characteristics:Copper Tungsten alloy Weld Electrodes, utilizing a meticulous process where high-purity tungsten is skillfully pressed, sintered, and then enhanced by infiltration with oxygen-free copper, resulting in a consolidated product that represents a homogeneous microstructure with minimal porosity. This sophisticated combination leverages copper's superior conductivity alongside tungsten's inherent high density, exceptional hardness, and remarkably high melting point, culminating in a composite that embodies the distinguished properties of both elements. Copper-infiltrated tungsten is revered for exhibiting formidable resistance to high-temperature conditions and arc-erosion. It also excels in thermal and electrical conductivity while maintaining a low coefficient of thermal expansion. The interplay between the copper and tungsten quantities in the composite is crucial, with varying amounts impacting tungsten copper's physical and mechanical properties, as well as its melting point. An increase in copper content typically enhances electrical and thermal conductivity, alongside thermal expansion, but may reduce density, electrical resistance, hardness, and strength. Ultimately, achieving an optimal chemical composition is paramount to tailor tungsten copper for specific application needs.Minimal thermal expansionSuperior thermal and electrical conductivityEfficient consumptionExceptional arc resistanceApplicationsThe remarkable Tungsten copper (W-Cu) materials have gained prominence across a multitude of fields and applications, attributed to their extraordinary mechanical and thermophysical properties. These materials are synonymous with high performance, excelling in hardness, strength, conductivity, and resistance to high temperatures and arc erosion. Tungsten copper has been extensively utilized in the manufacturing of electrical contacts, heat sinks and spreaders, die-sinking EDM electrodes, and fuel injection nozzles, among others.Resistance welding electrodesCircuit breakers (whether air or oil immersed)Arcing tipsHeavy-duty contactorsRelays/switchesProduct ParametersA notable drawback of directly sintering tungsten copper is the reduction in its electrical and thermal conductivity due to activation sintering.MaterialsWt% Tungsten ContentWt%Copper ContentGradeRWMA ClassDensity (g/cc)Electrical Conductivity (%IACS)Hardness (HRB)W70Cu3070BalanceA5WC1014.1847-5288-95W75Cu2575BalanceA10WC1114.8042-5096-99W80Cu2080BalanceA30WC1215.6041-4999-104Note: The values provided are typical and should not be used for exact specifications.Our AdvantagesKefeng Powder Metallurgy has been at the forefront of innovation, delivering superior tungsten alloy metal solutions that serve diverse global products, applications, and industries.-Our products undergo stringent physical testing, encompassing density, tensile strength, yield strength, conductivity, elongation, and hardness, ensuring top-tier quality.-Our products are meticulously identified throughout every stage of the production process and subjected to in-depth analysis and verification before delivery.-Our products are available with comprehensive verification in alignment with specifications, ensuring compliance whetherChemically, mechanically, or physically verified. 

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