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Vacuum brazing of stainless steel
Brazing of stainless steel & carbon steel components. Utilize copper, silver, nickel & low temperature brazing alloys. Assembly, testing & annealing services. (Nadcap Certified).
Vacuum Brazing of Titanium
Vacuum Brazing of Titanium & carbon steel components. Utilize
copper, silver, nickel & low temperature brazing alloys. Assembly,
testing & annealing services. (Nadcap Certified).
Brazing advantages over welding
The lower temperature of brazing and brass-welding is less likely to
distort the work piece or induce thermal stresses. For example, when
large iron castings crack, it is almost always impractical to repair
them with welding. In order to weld cast-iron without recracking it
from thermal stress, the work piece must be hot-soaked to 1600 °F. When
a large (more than fifty kilograms (100 lb)) casting cracks in an
industrial setting, heat-soaking it for welding is almost always
impractical. Often the casting only needs to be watertight, or take
mild mechanical stress. Brazing is the premium, preferred repair method
in these cases.
The lower temperature associated with brazing vs. welding can increase joining speed and reduce fuel gas consumption.
Brazing can be easier for beginners to learn than welding.
For thin workpieces (e.g., sheet metal or thin-walled pipe) brazing is less likely to result in burn-through.
Brazing can also be a cheap and effective technique for mass
production. Components can be assembled with preformed plugs of filler
material positioned at joints and then heated in a furnace or passed
through heating stations on an assembly line. The heated filler then
flows into the joints by capillary action.
Braze-welded joints generally have smooth attractive beads that do
not require additional grinding or finishing. The most common filler
materials are gold in colour, but fillers that more closely match the
color of the base materials can be used if appearance is important.
Our Nadcap Approved Processes
Applied Thermal Technologies can comply with the following industry standards and specifications:
AMS 2675, Nickel Alloy Brazing, AMS 2750, Pyrometry, AMS 2759, Heat
Treatment of Steel Parts–General Requirements, AMS 2759/3, Heat
Treatment–P.H. , C.R. , and Maraging Steel Parts, AMS 2759/4, Heat
Treatment–Austenitic Corrosion Resistant Steel Parts, AMS 2759/5, Heat
Treatment–Martensitic Corrosion Resistant Steel Parts, AMS 2769, Heat
Treatment of Parts in Vacuum,AMS 2773, Heat Treatment–Cast Nickel Alloy
and Cobalt Alloy Parts,AMS 2774, Heat Treatment–Wrought Nickel Alloy
and Cobalt Alloy Parts,AMS 2801, Heat Treatment of Titanium Alloy
Parts, MIL-B-7883, MIL-H-6875, MIL-H-81200, AMS 2769 Heat Treatment of Parts in Vacuum
Vacuum Brazing (brazing in vacuum atmosphere) is commonly used for certain
materials that readily form oxide layers in air or partial pressure. Titanium
based, active metal brazing (ABA) is performed in vacuum and is well suited for
bonding metal and non-metal materials without the added time and expense of
metalizing or thin-film sputtering. Vacuum brazing is also commonly used for
Stainless Steel-type alloys which are ideally suited for bonding Stainless Steel
for Medical, Semiconductor equipment and industrial vacuum applications.
Specializing in Vacuum Brazing Services:
Vacuum Brazing With Copper, Silver, Gold & Nickel Alloys To
Order In Vacuum, Hydrogen Or Other Atmospheres. Engineering Assistance.
Prototype & Production Quantities
Vacuum Brazing
Applied Thermal Technologies Inc. was created in 1992 to service the
medical and specialty products industries of Northern Indiana,
specializing in bright vacuum heat treating and furnace brazing of
stainless steel and exotic metal alloys. We work closely with each
customer in determining their particular engineering requirements and
are available for technical assistance in metallurgy, heat treating,
and brazing. Our furnace brazing services include vacuum or
hydrogen atmosphere, assembly, braze repair, hydrogen fluoride
cleaning, hard surfacing, ceramic brazing with or without metallizing.
Visit our website for more information.
We pride ourselves on doing a great job
- Quality and dependability
- Turnaround Time - as fast as overnight
- Flexibility from 1 piece to 25,000,000 pieces
- Custom work welcome
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