This is a moderate flow silver-free alloy with good gap filling ability. It is safe for use in potable water applications, and joins a variety of metals including copper to copper and copper to steel.


Melting Pt. 441 ºF
227 ºC
Flow Pt. 590 ºF
310 ºC
MBT1 650
Preform Options Bands (Sleeves) 
Custom Designs 
Discs - Coated, Cored 
Rings - Coated, Cored 
Washers - Coated, Cored, Linked
Preform Options Bar (Various Sizes) 
Strip - Flux Core 
Wire - Flux Core
Approx. Wire Length (BCuP/lb.) (BAg/Tr.oz) 1265 in @ 0.062 diameter 
5050 in @ 0.031 diameter 
575 in @ 0.093 diameter

Phsycial Constants

Color Silver
Density 0.266 lb./cu.in


A lead-free, cost effective alternative to tin-silver compositions. Good gap filling ability.


Download SDS Sheet

Compare With


  • Brazing Temperature Range High: 650 F / 343 C
  • Brazing Temperature Range Low: 600 F / 316 C
  • Liquidus: 590 F / 310 C
  • Solidus: 441 F / 227 C



  • Sn: 97%
  • Cu: 3%

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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