Gases for Metal Fabrication
Whatever your welding gas needs, MATHESON locations offer answers and expertise. No matter if your work is in manufacturing, a weld shop, or in the field, we can serve you from our stores, by phone, on the road, or online.
Count on MATHESON quality and delivery for all of your gas needs: fuel gas, shielding gas, or industrial gas, and the equipment to make it all work.
Every MATHESON welding location supplies acetylene, oxygen, and air in a variety of cylinder sizes, with fast delivery (usually in-stock).
Palleted MicroBulk packs are also available, with cylinders and manifold in a forklift-ready cradle, for easy delivery, storage, and site-readiness. In very high usage applications, trailer mounted bulk acetylene supply can be arranged.
MATHESON also supplies and fills cylinders for portable oxy-fuel and air-fuel outfits used for heating, brazing, cutting, soldering, and welding. We also carry a variety of outfits themselves, from a variety of leading manufacturers, including our own MATHESON Select® brand.
Propane and Propylene
There are many reasons why you might be using, or wish to weigh your options for switching to using, propane or propylene as your fuel gas.
MATHESON Gas Professionals have been trained in the application requirements for all gases. We can help you weigh your options. If a changeover is right for you, we can help you make the transition from one fuel gas to another.
Our commitment for these alternative gases is the same as our commitment for acetylene: high product quality, fast delivery, expert support.
Hardware requirements for acetylene alternatives are very different. MATHESON Gas Professionals are trained in the differences and can help you navigate the choices.
Shielding gas surrounds and protects the arc and the weld pool, serving to protect the weld from contamination by the atmosphere. Cylinder-to-cylinder, welding professionals rely on gas blend quality and reproducibility to minimize adjustments when changing cylinders.
Standard Shielding Gases
Shielding gases are typically 100% Ar, He, or CO2, or mixtures of those, sometimes with H2 or O2 added. “75/25” is generally assumed to mean a mixture of 25% CO2 in Ar; but 25% He in Ar is often used for nickel and copper alloys.
MATHESON is committed to the reliable and sustainable supply of these standard shielding gases and gas mixtures, as well as custom blends that might be required by customers.
Summary Data Sheet: MATHESON Standard Shielding Gases
MATHESON Select Shielding Gases
Although standard shielding gases are successful and proven, for some applications, adjustments to these typical blends can result in improved results. Areas of improvement include characteristics such as travel speed, porosity, weld penetration, weld appearance, spatter, and operator comfort.
This led us to the development of a complete line of MATHESON Select Shielding Gases.
When developing the line of MATHESON Select Shielding Gases, we threw out the book on conventional shielding gas mixture composition. We studied ultra-high speed video of droplet formation and plasma stability. We studied weld consistency. We looked at weld cross-sections to observe weld depth, shape, porosity, and metallurgical characteristics.
The result is a line of welding shielding gases that helps you get better productivity and efficiency, while also achieving higher quality welding results.
Improved Safety and Environmental Impact
- Reduced fumes and hexavalent chromium emissions
- Lower environmental impact
Enhanced Weld Quality
- AWS A5.32 compliant homogeneous mixtures ensure high quality welds with consistently high mechanical properties and reduced porosity
Lower Welding Costs
- Reduced cost / ft and cost / lb
- Improved productivity by as much as 40%
Explore MATHESON Select shielding gases to help you improve your bottom line and for welding process improvement in terms of: productivity, efficiency, and quality.
Visit the Welding Shielding Gas section of the Gases Page of this website to find the right shielding gas for you, including both standard shielding gases and MATHESON Select shielding gases.
Resonator Gases, Assist Gases, Laser Gases and Equipment
LaserPro™ gases and systems are designed to meet and exceed laser system manufacturer and user requirements including resonator gases, assist gases, process gases. MATHESON also offers related equipment.
As a leading supplier of laser gases, MATHESON has the experience and expertise to make your operation productive and profitable. We provide a complete line of high purity gas products, specifically designed for lasers, including laser resonator gases, laser assist and process gases.
MATHESON provides the total gas supply system, including high quality gas control equipment specifically designed for laser applications. MATHESON can provide customized solutions specific to your requirements, and provide the complete turnkey system.
MATHESON also provides you with one source for all of your laser support service needs. Contact MATHESON today.
We stand ready to supply gases in bulk, liquid Dewars, tube trailers, or high pressure cylinders. Our qualified laser experts can determine and recommend the best method to meet the specific flow and pressure parameters for your laser.
Gas Equipment for Laser Resonator Gases
Impurities in resonator gases can damage optics and reduce laser beam quality. Proper high-purity equipment is essential to maintaining the purity of laser gases.
MATHESON’s LaserPro regulators and switchover systems have the same high-quality components (stainless-steel diaphragms, high leak integrity, etc.) used for years in critical laboratory and research applications.
LaserPro switchover systems provide continuous supply of resonator gas eliminating the need to shut down for cylinder changeouts, enhancing productivity. Systems are available for CO2/N2/He premix or for individual pure gases (real time mixing). Rack or wall mount.
Gas Equipment for Laser Assist Gases
Assist gases often require high pressures and flow rates. The MATHESON LPHF Assist Gas Regulators utilize dome-loaded technology to handle this heavy duty application. The advantage of dome-loaded regulators is the stable delivery pressure under varying flow conditions, as well as almost-instantaneous flow when the laser calls for assist gas.
A standard spring-loaded diaphragm regulator experiences some lag time before flows and pressures stabilize. Dome-loaded technology allows for faster piercing times which are especially important if the customer nests many parts on one sheet. The dome-loaded regulators are also very durable, outlasting their spring-loaded counterparts.