Safety-Silv® 45FC Brazing Alloy HARRIS

Safety-Silv® 45FC is a cadmium-free silver brazing alloy suitable for joining copper, steel, and brass alloys in HVAC and industrial brazing applications. The alloy features a plastic range of approximately 175°F (70°C), allowing effective brazing where joint clearances or fit-up conditions may not be tightly controlled.

Its wider melting range allows operators to fill gaps and work efficiently on joints where alignment is less precise while still producing dependable brazed connections. This makes the alloy suitable for both fabrication and repair brazing work.

Corrosion resistance is generally similar to copper base metals, but zinc-containing alloys should not be used in applications where brazed joints are exposed to concentrated corrosive liquids for extended periods.

Key Benefits

Suitable for brazing copper, steel, and brass alloys
Cadmium-free composition for safer brazing operations
Wide melting range supports poor joint fit conditions
Provides good alloy flow for dependable joint formation
Suitable for fabrication and repair brazing tasks
Commonly used in HVAC and industrial applications

Specifications

Product Name: Safety-Silv® 45FC
Product Type: Silver Brazing Alloy
Suitable Materials: Copper, steel, and brass alloys
Cadmium Content: Cadmium-free
Plastic Range: Approximately 175°F (70°C)
Corrosion Behavior: Similar to copper base metal; avoid prolonged exposure to concentrated corrosive liquids
Recommended Flux Options: Stay-Silv® White flux or Stay-Silv® Black flux for extended heating cycles
Available Forms: Standard wire diameters, preform rings, coils, and strip
Specification Compliance: ANSI/AWS A5.8, ASME SFA 5.8 Class BAg-5

Applications

Copper and brass component brazing
Steel fabrication brazing operations
HVAC and refrigeration installations
Industrial maintenance and repair brazing
Production brazing processes

FAQs

Which metals can Safety-Silv® 45FC join?
It is suitable for brazing copper, steel, and brass alloys.

Why is this alloy useful when joint fit-up is poor?
Its wide melting and plastic range allows better filling of joints where clearances are not ideal.

Is this alloy cadmium-free?
Yes, it is formulated without cadmium.

Which flux should be used?
Stay-Silv® White flux is commonly used, while Stay-Silv® Black flux is recommended for longer heating cycles.