This alloy has flow characteristics in between those of 60/40 and 40/60 Tin Lead alloys. This alloy is not permitted for use on potable water systems due to presence of lead. It is equally useful on steel, copper and nickel alloys, but not recommended for applications with high levels of vibration or where the joint is subject to heavy stresses. 50/50 Tin-Lead solder is available in solid or rosin/acid cores.


Melting Pt. 360 ºF
182 ºC
Flow Pt. 420 ºF
215 ºC
MBT1 460
AWS Sn 50
Preform Options Bands (Sleeves) 
Custom Designs 
Discs - Coated, Cored 
Rings - Coated, Cored
Washers - Coated, Cored, Linked
Resale Options Bar (Various Sizes) 
Strip - Flux Core 
Wire - Flux Core
Approx. Wire Length (BCuP/lb.) (BAg/Tr.oz) 3930 in @ 0.031 diameter 
437 in @ 0.093 diameter 
983 in @ 0.062 diameter

Phsycial Constants

Color Gray
Density 0.337 lb./cu.in


Similar to 60/40 with more moderate flow characteristics.


Download SDS Sheet

Compare With

  • AWS: Sn 50
  • PI: Sn50Pb50


  • Brazing Temperature Range High: 521 F / 272 C
  • Brazing Temperature Range Low: 471 F / 244 C
  • Liquidus: 421 F / 216 C
  • Solidus: 361 F / 183 C



  • Sn: 50%
  • Pb: 50%

The information and recommendations contained in this publication have been provided without charge & compiled from sources believed to be reliable and to represent the best information available on the subject at the time of issue. No warranty, guarantee, or representation is made by the Prince and Izant Company, Inc. as to the absolute correctness or sufficiency of any representation contained in this and other publications; Prince and Izant Company, Inc. assumes no responsibility in connection therewith; nor can it be assumed that all acceptable safety measures are contained in this and other publications, or that other or additional measures may not be required under particular or exceptional conditions or circumstances. The company and product names referenced herein are for identification purposes only. All trademarks and registered trademarks are the property of their respective owners.

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