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Low temperature range:


Alloy 

number


Alloy 

composition

Solidus 

temperature (° C)

Liquidus temperature (° C)

Description

Feature

Application

LF-302

Sn42/Bi58

138

Eutectic


Simple binary alloy. 

For special continuous soldering operation.


Reasonable shear strength and fatigue resistance

Can be used for temperature-sensitive parts and LED welding operations. Can be used for multi-step welding and fuse-like fuses operations can also be used for nozzle and exhaust valve operations.

LF-329

Sn42/Bi57/Ag1

138

Eutectic

Low eutectic temperature.


The addition of silver enhances its mechanical properties, with excellent resistance to thermal fatigue


LF-323

Sn64/Bi35/Ag1

170

190


Simple binary alloy. 

For special continuous soldering operation.


Excellent mechanical properties and thermal fatigue performance



Medium temperature range:


Alloy 

number


Alloy 

composition

Solidus temperature

Liquidus temperature

Description

Feature

Application

LF-303

Sn99.3/Cu0.7

227

Eutectic


Medium temperature alloy. Suitable for dip soldering and wave soldering.


Excellent mechanical properties, thermal fatigue resistance and excellent electrical conductivity.

Suitable for dip soldering, and wave soldering.

LF-305

Sn96.5/Ag3.5

221

Eutectic


Medium temperature alloy. Simple binary alloy. SAC filled alloy.


Excellent solder joint strength and excellent thermal fatigue properties.

Suitable for BGA / CSP parts, high-voltage instrument chip welding.

LF-307*

Sn96.5/Ag3.0/Cu0.5

217

219


Medium temperature alloy. Popular SAC alloy for wave soldering.


Excellent mechanical properties and thermal fatigue performance. Low melting point.

Suitable for dip soldering and wave soldering.

LF-307HD*

Sn96.5/Ag3.0/Cu0.5

217

219


Medium temperature range alloy, high temperature dip welding



Good mechanical properties, good electrical conductivity. Cost-competitive. Low melting point. Low residue.


High temperature dip welding

LF-315*

Sn99/Ag0.3/Cu0.7

216

228


Medium temperature alloy.




Low-cost SAC alloy, suitable for general dip soldering and wave soldering.

LF-315HD *

Sn99/Ag0.3/Cu0.7

216

228


Medium temperature range alloy, high temperature dip welding


LF- 315X*

Sn99/Ag0.3/Cu0.7+Bi

216

228


Medium temperature alloy.


LF- 318
Sn98.5/Ag1.0/Cu0.5
216
228

SN100C **

Sn99.3/Cu0.6/Ni+Ge

227

Eutectic


Medium temperature alloy. Popular Sn / Cu / Ni and alloys for dip and wave soldering.


Excellent mechanical properties, bright and smooth solder joints. Excellent through-hole soldering performance.

Suitable for dip soldering and wave soldering

SN100CL **

Sn99.3/Cu0.6/Ni+Ge

227

Eutectic


Medium temperature alloy. Popular hot air leveling of the popular Sn / Cu / Ni and alloys.


Suitable for hot air leveling welding



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