Welcome to Zhongya(tianjin) Electronic Solder Technology Co.Ltd official website

Solder Bar Series

Home>Solder Bar Series>4-3 Extinction and Anti-oxidated Type Wave Soldering Bar

4-3 Extinction and Anti-oxidated Type Wave Soldering Bar

0



Introduction 

With the high-purity (99.99%) Sn as raw material, the high-purity lead-free solder bar is used for wave soldering, dip soldering, especially for the automatic assembly line in mass production. This product meets the requirement of the EU RoHS environment directive. In order to meet the requirement of different soldering and adapt to a lot of operating methods , a variety of alloy composition and types of tin bar can be provided for users.

Characteristics

With the high-purity(99.99%) Sn as raw material and strict control of impurity content below 100ppm, the rate of tin slag is low, we can save the material cost about 16%. Excellent fluidity and wettability, the solder joint is bright and full, and the rate of bad solder joint is almost 0.

4-6 Lead-free Solder Bar Alloy Composition Selection Guide

4-6-1 Sn-Cu Alloys

Series Alloy CompositionMelting Point(℃)Proposed TemperatureRecommendation
WH-10S-Sn99.90232240-260
WH-11S-Sn98Cu2----
WH-22S-Sn99.7Cu0.3227240-260
WH-23S-Sn99.3Cu0.7227240-260Widely Used,Economical
WH-24S-Sn99Cu1227-240240-260
WH-25S-Sn97Cu3227-275240-260
WH-323S-Sn99Cu0.6Ni0.4226240-260

4-6-2 Sn-Ag Alloys

SeriesAlloy CompositionMelting Point(℃)Proposed Temperature Recommendation
WH-26S-Sn97Ag3221-230240-260
WH-27S-Sn96.5Ag3.5221240-260
WH-28S-Sn96Ag4221-225240-260
WH-331S-Sn77In20Ag3178-189240-260
WH-372S-Sn99Ag1


4-6-3 Sn-Ag-Cu Alloys

SeriesAlloy CompostionMelting Point(℃) roposed TemperatureRecommendation
WH-316S-Sn97Ag1Cu2
WH-326S-Sn96.5Ag3Cu0.5Ce217-219240-260Widely use for high-end electronic products
WH-327S-Sn95.5Ag3.5Cu1218240-260
WH-328S-Sn93Ag5Cu2217240-260
WH-329S-Sn95Ag4Cu1206-219240-260
WH-373S-Sn99Ag0.3Cu0.7For general electronic products
WH-404S-Sn92Ag5Cu2Sb1Military used
WH-402S-Sn96.5Ag2Cu1Sb0.5216-222240-260

4-6-4 Sn-Zn (Eutectic) alloys

Series WH-29Alloy Compositions S-Sn91Zn9Melting Point(℃) 188Proposed Tempeture 240-260Recommendation

4-6-5 Sn-Bi-X Alloys

Series WH-330 Alloy CompositionMelting Point(℃)Proposed Tempeture Recommendation
WH-330S-Sn93Ag4Bi3219-221240-260
WH-332S-Sn90Bi8Ag2207-212240-260
WH-333S-Sn88Zn7Bi5180-198240-260
WH-138S-Sn42Bi58138160-180Low melting point
WH-139S-Sn64Bi35Ag1139--Low melting point

4-6-6 Sn-Sb Alloys

Series WH-210Alloy Composition S-Sn95Sb5Melting Point(℃) 232Proposed Tempeture 240-260Recommendation