BrazeLet® F300-20

Iron-based brazing alloy

Höganäs’ unique and patented iron-chromium based stainless brazing alloy BrazeLet F300-20 offers excellent wetting properties and great corrosion resistance particularly developed for brazing of stainless steel materials in vacuum or protective atmospheres (dry hydrogen or argon). With excellent wetting properties, low brazing temperature and high corrosion and oxidation resistance it is a good choice for automotive and industrial heat exchangers. It is well suited for drinking water applications with strict requirements on metal ion leaching. Compared to nickel-based brazing alloys it offers a more attractive and stable cost. Compared to most of the standard nickel-based brazing alloys, BrazeLet F300-20 is able to fill larger gaps without brittle phase lines or cracks, which leads to a more reliable and safe brazing as well as more flexibility in part tolerances.

     
 

Nominal composition: Fe – 20Ni – 20Cr – 7P – 6.5Cu – 4Si 
Powder type: Gas atomised
Melting range: 1025 – 1060 °C
Minimum brazing temperature: 1100 °C
Recommended gap clearance: 25 – 150 µm
Particle size distribution: -106 (F) µm, -63 µm
Applicable specifications: ISO 3677 B-Fe42CrNiPCuSi-1025/1060

 
     

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