lead free solder paste flux for SMT printing

lead free solder paste flux for SMT printing 1.high melting point 2. good viscosity 3.haolgen free 4.lead free

Shenzhen Jufeng Tin Product Co., Ltd. is specialized in producing and selling tin products, such as tin solder bars, tin solder wires, tin fat, anode stubs, soldering flux, apply machine water and cleaning agents. Our products are widely applicable to welding engineering of electron, communication, electric appliances, electric instruments and meters. 

Tab.1 Data of Alloy Composition

Alloy elements

Sn

Pb

Ag

Fe

Bi

Ai

Cd

Ni

Sb

Zn

Cu

As

Hg

Content indexwt%

41.5~42.5

0.05 Max

0.05 max

0.020 max

Rem

0.001 max

0.002 max

0.01 max

0.05 max

0.001 max

0.05 max

0.03 max

0.002 max

Tab.2 Physical property of Sn42Bi58 tin wire

Melting Point°C	Gravity g/cm³	Resistivity uΩ.cm	85°Cthermal conductivity	20°C coefficlent of heat expand	Modulus Of Elasticity Gpa	Brinell Hardness HB	0.2% Yield strength Mpa	Tensile Strength Mpa	Elongation %	Shear strength Mpa (1mm/min)
										ambient	100°C
139	8.75	33	21	15	11.9	22	49.1	60.4	46	48.0	15.6
Remarks                               below 125°Cnot creeping

specification

;

Sort	Chemical composition (wt.%)
	Sn	Bi	Sb	Pb	Fe	Al	Cd
Sn42-Bi58	42±0.5	58±0.5	<0.02	<0.01	<0.02	<0.002	<0.003

tions

Handle with care,keep from heat,no acid

The information contained here in is based on data considered accurate and offered at no charge.No warranty is expressed or implied regarding the accuracy of his data.Liability is expressly disclaimed for any loss or injury arising out of the use of this information or the use of any materials designated.

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