List of lead free alloys｜Manufacturer of lead free solder, flux cored wire solder, and others. Matsuo Handa

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	〇	〇			217	359	For prevention of copper erosion
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