Tinned copper wire

MODEL:TXR NAME:Tin Plated CopperWire/tinned copper wire DIAMETER:0.03mm-0.30mm Material & Production standard1.Copper WireGB/T3953-83 2.Tin According to GB728,Tin lever is above 2 3.Tin Plated Copper WireGB4910-1985 Resistivity Normal Diameter mm Resistivity Ω·mm2/m,at 20 Not Exceed TXR THRH 0.050d≤0.090.018510.01851 0.090d≤0.250.018020.01831 0.250d≤0.50 0.017700.01793 0.050d≤4.000.017600.01775 Dimension & Tolerance Normal Diameter mmPermissible Variations mm 0.050d≤0.125+0.006 -0.003 0.125d≤0.400+0.010 -0.004 0.400d≤4.00+2%d -1%d Machine Capacity Machine Capacitymm Elongation%above 0.05d≤0.09 - 6 0.09d≤0.25 12 0.25d≤0.50 15 0.50d≤2.0020 2.00d≤4.00 25 Plated 1. The plating of the conductor is smooth and continuous on the surface ,And should not be any defects that affect the product performance 2.The plating of the conductor is continuous , after Na2Sn test ,it shall not be black .Or after the test of (NH4)2SO4 , t he salt liquid is not deep in color than the standard color of the liquid color Testing 1. All products must be tested qualified before delivery,the quality certification report should be delivered together with each batch.. 2.Products testing rule is as follows :NOItem Testing method 1Tin percentage &Plated Thickness Plated Thickness Tester 2Diameter of single wire and tolerance Micromrter in micro 3Appearance Normal Visual Test 4Continuity of testing GB/T4909.910 5Machine Capacity GB4910-1985 6Resistivity GB4910-1985 7Solderability