Sn63Pb37 High Fluidity Low Drossing High Purity

ALPHA® HIFLO® Sn63Pb37
High Fluidity Bar Solder

Manufactured using the highest purity of metals with proprietary viscosity and dross lowering treatments to create the purest, lowest drossing, and highest fluidity solder available.

Product Overview

ALPHA HiFlo Sn63Pb37 solder is manufactured using the highest purity of metals through a process utilizing Alpha’s proprietary viscosity and dross lowering treatments. This creates the purest, lowest drossing, highest fluidity solder.

ALPHA HiFlo Sn63Pb37 is then alloyed and cast in a closed-loop injection system under a nitrogen blanket, leaving it free of cast-in impurities and included oxides. This further enhances its low drossing characteristics.

ALPHA® HiFlo Sn63Pb37

Features & Benefits

Key Features

  • Increases production speed and reduces production cost.
  • Minimizes drossing and reduces bridging.
  • Reduces icicling, capable of soldering densely populated boards.
  • Solders at lower temperature and increases yield.
  • Nitrogen inerted molten casting process with selective control of raw materials.
  • Proprietary pot treatments for control of oxides & viscosity and trace elements.

Main Benefits

  • Decreases wetting force required to wet out pads & thru-holes.
  • Decreased bridging in fine pitch technology.
  • Smaller fillets yield more joints per pound.
  • Easier inspection & less rework / touch-up due to brighter solder joints.
  • Compensates for board design that causes shadowing & reduces solder skips.
  • True parabolic shaped fillets.
  • Extends pot life by allowing lower operating temperature.

Application Guidelines

ALPHA HiFlo Sn63Pb37 is the ideal companion product for all wave soldering systems including inert atmosphere equipment. When used to solder Surface Mount Technology (SMT), fine pitch, or densely populated boards, the lowest defect rates and highest number of solder joints per pound possible are achieved. ALPHA HiFlo Sn63Pb37’s high purity and fluidity reduces rework by minimizing bridging, icicling, and other causes of defective joints and can be used at lower operating temperatures.

Application Guidelines
View Detailed Product Parameters

Technical Specifications

The following indicates the alloy and impurity specification limits for ALPHA HiFlo Sn63Pb37 solder in relation to ASTM B32-04. The values are maximum limits unless otherwise indicated.

Element ASTM B32-04 HiFlo Sn63Pb37
Sn 62.5 to 63.5 63.0 to 63.5
Pb Balance Balance
Sb 0.50 max 0.30 max
Cu 0.08 max 0.007 max
Au N/A 0.005 max
Ag 0.015 max 0.005 max
Al 0.005 max 0.001 max
As 0.03 max 0.008 max
Bi 0.25 max 0.01 max
Cd 0.001 max 0.001 max
In N/A 0.02 max
Fe 0.02 max 0.005 max
Ni N/A 0.002 max
Zn 0.005 max 0.001 max
S N/A 0.001 max
P N/A 0.003 to 0.008

Availability

ALPHA HiFlo Sn63Pb37 is provided in 1kg (2.2lb) Bar, Chunks, Feeder Ingots and Autofeed Wire.

Product Documentation

ALPHA® HIFLO® Sn63Pb37 Bar Solder TDS

Simplified Chinese

ALPHA® HIFLO® Sn63Pb37 Bar Solder TDS

English