Services
The Sousa Corp. offers a wide range of heat treating, material testing, and black oxide finishing services. If you don't see a process or test listed on this site please contact us to verify our capabilities.
Heat Treating
The Sousa Corp is a full service heat treater offering a wide range of thermal processes on many ferrous and non-ferrous alloys to improve their properties and life.
Key Benefits
Materials
Materials that we commonly process include but are not limited to:
- Carbon & Low Carbon Steel
- Alloy Steel
- Martensitic Stainless Steels
- Austenitic Stainless Steel
- PH Stainless Steels
- Maraging Steel
- Tool Steels
- Ductile Iron
- Cast Iron
- Nickel Alloys
- Cobalt Alloys
- Titanium
- Aluminum
- Copper
- Bronze
- Brass
Thermal Processes
Thermal processes that we offer include, but are not limited to:
- Aluminum Heat Treating (Stress Relieve & Age)
- Bright Annealing and Hardening
- Carbon Restoration
- Carburizing & Carbonitriding
- Deep freeze (to -120F) & Stabilization
- Stress Relieving
- Vacuum Hardening & High Pressure Quenching
- Vacuum Tempering & Annealing
- High Speed Steel & Exotic Alloy Hardening & Annealing
- Neutral Hardening
- Non-Ferrous Heat Treating
- Normalizing
- Precipitation & Age Hardening
- Solution Heat Treating
- Selective Hardening
Black Oxide
The Sousa Corp offers the Tru Temp black oxide finishing process. Utilizing a unique two-stage oxidation process, the Tru Temp process forms a black magnetite finish on all iron and non-stainless steel parts. The Tru Temp process operates effectively at much lower temperatures than ordinary black oxide. The resulting finish is a protective black finish — 0.000020" (1 micron) thick, with an attractive black appearance equivalent to that of regular black oxide.
Key Benefits
Corrosion Protection
Depending on the post-treatment applied, Tru Temp black oxide withstands 100–300 hours salt spray.
Dimensional Stability
Black oxide adds no more than 0.000020" (1 micron) to the dimension of a part. This is basically an unmeasurable change in size, providing corrosion protection for critical-size parts.
Improved Lubricity
Oil post-treatment not only protects against corrosion, but the oil itself results in smoother running, mating parts.
Decorative Finish
The black oxide process creates an attractive uniform black finish. Some parts will achieve a glossy finish, while others will present more of a matte finish.
Capabilities
Our black oxide tanks are 30" wide X 30" long X 28" high. If you have a part that approaches these dimensions please call us to verify that we can process it.
Material Testing
The Sousa Corp offers material testing services including Rockwell hardness testing, microindentation hardness testing, metallography, and XRF spectrometer material type testing.
Capabilities
- Rockwell Hardness Testing
- Microindentation Hardness Testing (Knoop & Vickers)
- Metallography
- XRF Spectrometer Material Type Testing
- Photographic Capabilities
XRF Analyzer
Our XRF (X-Ray Fluorescence) analyzer can identify and sort mixed materials quickly and accurately. This is especially useful for incoming material verification and mixed lot identification.
Laboratory Services
The Sousa Corp maintains an in-house metallurgical laboratory capable of supporting our heat treating operations and providing testing services to our customers.
Capabilities
- Sample Preparation
- Microhardness Testing
- Metallography with Photographic Capabilities
- Rockwell Hardness Testing
- XRF Material Identification
Get a Quote
Let us quote the heat treat on your next project. Submit your quote information using our online quote form and we'll get you a price ASAP.
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