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Product Information Fine solder

List of lead free alloys

We have a variety of metal alloys in our line up. Please consult us for other alloy compositions not listed below but available in our wide product line.

Alloy Product
name
JIS
code
Alloy
composition (%)
Bar Wire Flux
cored wire
Paste Solidus
temperature
(°C)
Liquidus
temperature
(°C)
     Notes
Sn-Sb FLF26 S50 Sn-5Sb 238 241
Sn-Cu FLF03 C7 Sn-0.7Cu 227 228
FLF19 C30 Sn-3.0Cu 227 309 For prevention of copper
erosion
FLF28 Sn-4.0Cu 227 350 For prevention of copper
erosion
Sn-Cu-Ag FLF07 C7A3 Sn-0.7Cu-0.3Ag 217 226 Low silver type
FLF23 Sn-3.0Cu-0.3Ag     225 312 For prevention of copper
erosion
FLF31   Sn-4.0Cu-1.2Ag   217 359
Sn-Ag FLF02 A35 Sn-3.5Ag 221 221
Sn-Ag-Cu FLF30 Sn-1.0Ag-0.5Cu-Ni-Ge 217 226 Low silver type
FLF22 Sn-1.0Ag-0.7Cu 217 227 Low silver type
FLF01 A30C5 Sn-3.0Ag-0.5Cu 217 219 JEITA recommended
product
FLF04 A35C7 Sn-3.5Ag-0.7Cu 217 217
Sn-Zn FLF09 Z90 Sn-9Zn 198 198
Sn-Zn-Bi FLF18 Z80B30 Sn-8Zn-3Bi 190 196
Sn-Bi FLF08 B580 Sn-58Bi 139 139 Low melting point type
Sn-Bi-Ag FLF35 Sn-57Bi-1Ag 137 137 Low melting point type
Please feel free to contact us for general enquiries or questions and concerns related to products.
046-274-0706
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