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Sn99.3Cu0.7 lead free solder Each index is favorable and reliable, passes the inspection of Quality Supervision & Inspection Center of Special Materials of State Ministry of Information and international inspection organization SGS, with lead content lower than 100ppm. Under strict quality monitoring of CQC, with high-purity fine tin, advanced melting technique, and unique oxidation-resistant alloy formula, Tongyong lead-free tin bar is of little slag, bright and reliable welding spot, and good wettability. Lead-Free SolderHigh-Purity Solder BarLow-Temperature SolderProduct Name210A202A203202B202B210ACompositionSn99.25Sn96.5Ag3.5Sn96.5Ag3Sn97Ag3Sn97.5Sn99.3Cu0.75Cu0.5Ag2.5Cu0.7Melting Point227ºC221ºC219ºC221ºC 230ºC220ºC227ºCCondensation217ºCPointSpecific7.37.47.47.47.47.3Gravity<500ppm<500ppm<500ppm<500ppm<500ppm<500ppm<20ppm<20ppm<20ppm<20ppm<20ppm<20ppm<100ppm<100ppm<100ppm<100ppm<100ppm<100ppm<100ppm<100ppm<100ppm<100ppm<100ppm<100ppmTensile32.253.532.232.232.2strengthYoung's3441.6343434RateTensile5046505050strengthStandardROHS/ROHS/ROHS/ROHS/ROHS/ROHS/GB/T 20422-2006GB/T 20422-2006GB/T 20422-2006GB/T 20422-2006GB/T 20422-2006GB/T 20422-2006Flow of useWeld MaintenanceWeld MaintenanceSilver Electrode Coating/Specified / Low-temperature solderingWeld dilution/ Weld MaintenanceWeld MaintenanceWeld Maintenance