Ishikawa Metal Co. Ltd is Lead-free solder manufactuer and sales in Osaka

Ishikawa Metal Co.,LTD


Management System
ISO 9001:2015
ISO 14001:2015

  • 7-21 Chikkoh Hamadera Nishimachi Nishi-ku Sakai City, Osaka 592-8352, Japan
  • TEL:072-268-1155 FAX:072-268-1159


Solder bar・Solder wire

For aluminum soldering type K4S
Prevent galvanic corrosion

Additive elements achieve high soldering reliability and prevent the galvanic corrosion that occurs between the aluminum material and solder.

High soldering reliability

●Electrolytic corrosion test

High corrosion life and soldering reliability
Measure the time until the solder delamination occurs, stored in 40℃ of artificial seawater, after soldering the two aluminum plates.

High working stability

Suppress the generating of dross, which particularly problematic in the terminal treatment of aluminum wier.Reduce the number of the replacement of solder bath,to ensure the work efficiency.

Reduce of dross

●Soldering mass production test

Long time stable soldering
Bath temp:400℃

Applicable to aluminum coil wire

Available to the terminal treatment with dipping of aluminum wire that rapidly spread to such as an air conditioner compressor motor.

Applicable tothe terminal
treatment of aluminum wire

●Cases of soldering aluminum wire and copper wire

Alloy type K4 (Sn:Bal / Ag 3.5 / Ni 0.2)
Solidus temperature(℃) 220
Liquidus temperature(℃) 348
Tensile strength(MPa) 43.3
Elongation(%) 38.1
Vickers hardness 16.4
Electrical Specific Resistance(µΩm) 0.153

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