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98002 - Silvaloy 450 45% Silver Brazing Wire Coil 1/16" (5 oz)

Packaging: 5 oz pack
$565.64/pak

In stock

OVERVIEW

High-Performance General Purpose Silver Brazing Alloy

The Lucas-Milhaupt Silvaloy 450 is a premium 45% silver brazing alloy designed for professional industrial applications requiring strong, ductile, and leak-proof joints. Recognized under the AWS classification BAg-1, this alloy is formulated with a specific composition of silver, copper, zinc, and cadmium to achieve the lowest melting temperature of any standard silver brazing filler metal. This low melting point (Solidus 1125°F, Liquidus 1145°F) is a critical advantage when working with base metals that are susceptible to grain growth, distortion, or annealing at higher temperatures.

Silvaloy 450 is characterized by its exceptionally narrow melting range, which allows the alloy to flow quickly and freely into tight capillary spaces. This "free-flowing" nature makes it the preferred choice for production environments where speed and economy are essential. It exhibits excellent wetting properties on a wide variety of ferrous and non-ferrous substrates, including steel, stainless steel, copper, brass, and bronze. The resulting joints are not only mechanically strong but also offer high electrical conductivity and corrosion resistance, making them suitable for demanding environments.

This product is supplied in a 5 oz coil with a 1/16" (1.6mm) diameter, providing a practical quantity for maintenance, repair, and operations (MRO) tasks or small-scale fabrication. The coil format allows the operator to easily feed the wire during manual torch brazing operations. Due to its cadmium content, appropriate safety ventilation and respiratory protection are required during use. It is widely utilized in the manufacturing of tubular assemblies, electrical contacts, and precision instruments where heat control is paramount.

Technical Specifications

  • Brand: Lucas-Milhaupt
  • Model: Silvaloy 450
  • AWS Classification: BAg-1
  • Silver Content: 45%
  • Diameter: 1/16" (1.6mm)
  • Melting Range: 1125°F - 1145°F
  • Packaging: 5 oz Coil
Additional Information
Packaging Description:5 oz pack
Silver Content (%):45
Diameter (mm):1.6mm
AWS Classification:BAg-1
Material Composition:15% Copper, 16% Zinc, 24% Cadmium, 45% Silver
----- new values below ----
AWS Classification:BAg-1
Material Composition:45% Silver, 15% Copper, 16% Zinc, 24% Cadmium
Solidus Temperature:1125°F (607°C)
Liquidus Temperature:1145°F (618°C)
Form:Wire Coil
Brazing Range:1145°F - 1350°F
Silver Content (%):45
Diameter (mm):1.6mm
Packaging Description:5 oz pack

INCLUDED

  • 1 x 5 oz Coil of Silvaloy 450 (BAg-1) Silver Brazing Wire
  • Protective Packaging

APPLICATIONS

  • Joining ferrous and non-ferrous metals (Steel, Stainless, Copper, Brass)
  • Manufacturing and repair of brass musical instruments
  • Ship construction and marine tubular assemblies
  • Aircraft engine coolers and heat exchangers
  • Electrical contacts and conductors
  • Precision plumbing and HVAC connections

FAQ

Silvaloy 450 contains 45% silver, along with copper, zinc, and cadmium.

Yes, Silvaloy 450 (BAg-1) typically contains Cadmium to lower the melting point and improve flow. Proper ventilation and safety gear are required.

A general-purpose silver brazing flux, such as Handy Flux or Stay-Silv White Flux, is recommended for most applications.

It has a solidus of 1125°F (607°C) and a liquidus of 1145°F (618°C).

No, Silvaloy 450 is not suitable for aluminum or magnesium. It is designed for steel, stainless steel, copper, and brass.

The wire diameter is 1/16 inch (approximately 1.6mm).

A narrow melting range (20°F for this alloy) allows the filler metal to solidify quickly, which is helpful for faster cycle times and preventing segregation of the alloy elements.

Due to the presence of Cadmium, this specific alloy (BAg-1) should not be used for joints that come into direct contact with food or potable water. Cadmium-free alternatives should be selected for those uses.