Description
Beryllium Copper Forging is a beryllium copper alloy product made by forging. Its production process usually involves heating a copper alloy billet containing 0.5% to 3% beryllium to an appropriate temperature, then forming it by forging, extrusion or drawing, and finally cooling and subsequent processing. Forged beryllium copper products have higher mechanical strength and compressive resistance while maintaining good electrical and thermal conductivity. Beryllium copper forgings are widely used in occasions that need to withstand high pressure and high temperature environments, such as heat exchangers, boiler pipes and high-pressure liquid transportation systems. Its size, wall thickness and length can be customized according to customer needs to meet the technical requirements of different engineering projects.
Features
High strength and hardness
During the forging process, beryllium copper alloy refines and evenly distributes metal grains through high-temperature plastic deformation, reduces grain boundary defects, and forms a dense fibrous structure. After subsequent aging treatment, the strengthening precipitation phase is evenly distributed in the matrix, improving the material strength. The tensile strength of C17200 alloy can reach 1380 MPa and the hardness is about HRC 45. The combination of refined grains and uniform precipitation phases makes forged beryllium copper have excellent mechanical properties and is suitable for industrial applications with high loads and repeated loads.
Scientific basis for electrical and thermal conductivity
The electrical conductivity of beryllium copper forging materials is generally maintained in the range of 40% to 50% IACS, and the thermal conductivity is about 140~150 W/m·K. Its excellent electrical and thermal conductivity mainly comes from the high purity of the copper matrix and the continuity of grain arrangement during the forging process. Although the addition of beryllium will slightly reduce the conductivity, the forging and heat treatment process control can optimize the morphology of grain boundaries and precipitated phases, minimize electron scattering, and thus maintain good conductivity to meet the stringent requirements of electronics, heat exchange and other fields.
Excellent corrosion resistance is determined by the density of the organization
The forging process reduces the internal defects of beryllium copper materials, makes the grains small and uniform, and improves the density of the material. This dense structure reduces the penetration rate of corrosive media and enhances the material's resistance to oxidation and chemical media. Experiments show that the corrosion resistance time of beryllium copper forgings in neutral salt spray tests is about 40% longer than that of cast copper alloys. It is particularly suitable for marine and chemical environments, can extend the service life of equipment, and reduce maintenance frequency and cost.
Process basis for machinability and formability
Beryllium copper has good ductility and plasticity in the annealed state, enabling it to be formed into complex geometric shapes by forging. After forging, the material undergoes aging hardening, and the mechanical properties are greatly improved, while maintaining a good processing allowance, providing a guarantee for precision machining and mechanical processing. The control of temperature and deformation during the forging process ensures uniform distribution of stress inside the material, avoids the occurrence of processing defects, and improves the material yield and processing efficiency.
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