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This proprietary new family of brazing & soldering products eliminates the need for a separate fluxing operation, which can result in a significant increase in productivity while minimizing flux exposure to your personnel and plant equipment.
HANDY ONE PRODUCT
Handy One is a trademark for a family of flux-cored brazing materials  that offers numerous advantages compared to traditional metal joining methods. It consists of a filler metal in strip form that is rolled around a powdered flux. Formulations currently exist for silver (and aluminum based) brazing filler metals and it is available on spools, coils or rods for wire feed applications and as preformed rings and shapes for automated production lines.
Some of the primary advantages of Handy One cored wire include:
- It simplifies the brazing process by eliminating the manual fluxing operation; this also reduces flux exposure to your brazing personnel.
- Joint quality and throughput can be improved due to the consistent application of flux and filler metal.
- Reduces heating time and secondary post braze operations, increasing productivity and throughput.
- Improved strength due to a reduction in flux inclusions at the joint interface.
- Reduces the flux in your wastewater effluent by as much as 75%.
- Multiple formulations exist for a variety of base metals, joint designs and heating methods.
These materials will join ferrous and non-ferrous metals including steel, stainless steel, copper, brass and bronze.
USES
Braze 300 is an economical, general purpose alloy for joining steel, copper and nickel alloys.
BRAZING CHARACTERISTICS
Braze 300 is an intermediate temperature filler metal that may be used as a cadmium free substitute for Easy-Flo 30 or used in applications where an intermediate silver-copper-zinc alloy is needed. It liquates moderately, but this property is useful in bridging gaps where poor joint fitups cannot be avoided. It flows well on steels, copper and copper alloys.
BRAZING FLUXES AVAILABLE
Lucas-Milhaupt has several different fluxes available depending upon the material form (wire or preformed shape) as well as base metals and heating methods utilized.
Restrictive Flux - protects the parts being joined, yet restricts the flow of the filler metal, enabling the building of fillets and minimizing post braze secondary operations. This flux is recommended for most hand feed or wire feed applications. Flux content is typically 12% (+- 3%) of the total volume.
Free Flowing Flux - This very fluid flux provides excellent protection of your parts and facilitates filler metal flow. Recommended for preformed ring applications, it is typically 18% (+- 3%) of the total volume.
Heat Resistant Flux - Boron modified flux for large mass assemblies or long heating cycles. It is also typically 18% (+- 3%) of the total volume and also recommended for preformed ring applications.
Please Note: Flux percentages may vary depending upon material size and finished form, please contact Lucas-Milhaupt's Technical Services Department for specific product and process parameters. phone 414-769-6000, fax 414-769-1093.
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NOMINAL COMPOSITION
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BRAZE 300
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Silver
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30.0% ±1.0%
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Copper
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38.0% ± 1.0%
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Zinc
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32.0% ± 2.0%
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Tin
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-----
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Total Other Elements
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0.15% max.
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PHYSICAL PROPERTIES
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BRAZE 300
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Color
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Yellow White
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Solidus (Melting Point)
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1250°F (675°C)
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Liquidus (Flow Point)
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1410°F (725°C)
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Specific Gravity
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8.84
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Density (Troy oz./cu.in.)
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4.66
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Electrical Conductivity (% IACS)
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24.4
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Electrical Resistivity (Microhm-cm)
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6.85
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PROPERTIES OF BRAZED JOINTS
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Braze 300
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In tests at room temperature, torch brazed, "wiped" butt joints yielded the following average results:
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Tensile Strength
(psi)
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Elongation
(% in 2")
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Copper
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30,000-35,000
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15.0-25.0
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Brass
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35,000-45,000
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16.0-31.0
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Nickle-Silver
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35,000-40,000
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7.0-17.0
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SPECIFICATIONS
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BRAZE 300
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AWS A5.8
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BAg - 20
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AVAILABLE FORMS
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Wire (several sizes available including .047 .060 diameter and .075"), rod form (20 inch lengths of .075 dia.) and preformed rings and shapes to specification.
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WARRANTY CLAUSE
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Lucas-Milhaupt believes the information contained herein to be reliable. However, the technical information is given by Lucas-Milhaupt without charge and the user shall employ such information at its own discretion and risk. Lucas-Milhaupt, Inc. assumes no responsibility for results obtained or damaged incurred from the use of such information in whole or in part.
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Please contact Lucas-Milhaupt for more information or to talk to a Technical Representative about the Handy One product that's right for you.
Lucas-Milhaupt, Inc.
5656 South Pennsylvania Avenue
Cudahy, WI 53110, USA
info@handy-one.com
414-769-6000 phone
414-769-1093 fax
To find out more about Lucas-Milhaupt, Inc. go to www.lucas-milhaupt.com
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