Alloys/

Brazing Alloys

Brazing alloys refer to various metal alloys that are used as filler metal in brazing processes, and differentiate based upon either the intended use or the method of application. Due to the multitude of brazing alloys, there is a correspondingly vast amount of industries that utilize them, particularly in aerospace, industrial manufacturing and automotive.

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Metal Associates
Pompton Plains, NJ
800-838-1978
When you need specialty metals, run of the mill products or hard to find industrial grade alloys, contact Metal Associates. We are a full line distributor of ferrous and non-ferrous alloys such as aluminum, bronze, copper, steel and more all available in a range of shapes, tempers and forms. From sheets and bar stock to tubing and wire, Metal Associates provides superior metal alloys and service.
 
Metalmen
Long Island City, NY
800-767-9494
Metalmen is your go-to source for nationwide & global distribution of aluminum, stainless steel, titanium, nickel & its alloys, Monel & high temperature alloys in such forms as foil, strip, blanks, sheet, coil, plate, wire, rod, bar, tube & pipe. Over 30 years experience means expert market advice & complete metalworking processes to meet each customer's specialty metal alloy and pure metal needs.
 
National Bronze & Metals, Inc.
Houston, TX
800-231-0771
National Bronze & Metals distributes the highest quality copper alloys, bronze & brass metal alloys. Our immense inventory includes over 100 different grades of copper alloys -- the largest of its kind in the USA. We serve a wide spectrum of demands by customers throughout North America and abroad with production involving bars in rounds, hollows, rectangles, squares, hex and made to order shapes.
 
Falcon Stainless & Alloys Corporation
Waldwick, NJ
800-631-0728
Established in 1959, Falcon Metals is a national distributor of high quality and hard to find metal alloys. We offer an extensive list of alloys and composites including stainless steels, nickel alloys, aluminum, alloy steels, titanium and tungsten alloys with inventories of sheet, coil, strip, foil, bar, wire, plate, pipe, tubing and structurals on most of the aforementioned grades to suit you.
 
Commercial Metal Exchange
Warminster, PA
215-956-0626
At Commercial Metal Exchange, we have over 25 years of experience helping buyers locate hard-to-find alloys, tempers and specifications. We stock and distribute all alloys, tempers and forms of aluminum, brass, copper, stainless and steels available for immediate delivery. Combined we have over 100 years of expertise sourcing metals. Avoid frustrations and trust us for fast delivery and low cost!
 
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Brazing Alloys


Brazing alloys are generally formed from three or more metals in order for the finished alloy to be endowed with specifically desired characteristics. For example, some potentially desirable properties are the ability to melt at very specific temperatures, melt at temperatures lower than that of the base metals, the ability to withstand harsh service conditions and to be able to wet the base metals. In addition, depending on the specific application that the brazing alloy is being used for, the alloy can be applied during the heating cycle or it can be pre-placed at the desired location. Some of the most common types of brazing alloys are copper alloys, nickel alloys, silver alloys, gold alloys and aluminum alloys. Specific applications that brazing alloys are involved in making include electric transformers, refrigeration equipment, motors, spacecrafts, jet engines, missiles, radiators, heat exchangers and transmission gears. Brazing is a heat treating process that involves the use of brazing alloys, which are melted metallic filler that are then used to bond two base pieces and create an extremely strong and often hermetic joint.

Unlike other forms of heat treatment, the brazing process does not alter the internal structure of materials in order to effect the desired change. Instead, brazing utilizes a technique that is similar to both welding and soldering in terms of creating a strong and lasting joint between two components. Although the broad categories of brazing alloys have been aforementioned, the more specific common types of brazing alloys include aluminum-silicon, copper-phosphorus, copper-zinc and gold-silver. As a brazing alloy, aluminum-silicon offers advantages in that it is has a high fluidity, low density, is easily casted and has controllable mechanical properties. Copper-phosphorus, on the other hand, is an economical choice of brazing alloy and features a high tensile strength. Copper phosphorus is also known as deoxidized copper. Another copper alloy, copper-zinc is commonly known as brass and offers the properties of high malleability, excellent acoustic properties and a relatively low melting point. Lastly, gold-silver is the most expensive option of brazing alloy and a specific type of naturally-occurring gold-silver alloy known as Electrum offers the beneficial characteristics of being an inert metal while offering high ductility.