• Skip to main content
  • Skip to primary sidebar
  • About Us
  • Contact Us
  • Store Locator
  • Safety Data Sheets (SDS)
  • Shop Online
  • Sustainability
  • Newsroom
  • Careers

MATHESON

The Gas Professionals

  • Gases
    • Search All Gases
    • Supply Options
  • Gas Equipment
    • Regulators
    • Flow Measurement
    • Gas Handling
    • Filters and Purifiers
    • Nanochem >
      • Ultrapurification Overview
      • Ultrapurification for Electronics
      • Ultrapurification for Welding
      • Desulfurization
      • Ultrapurification Media and Hardware
    • Gas Detection
    • Smart Devices
    • Custom Manufacturing
  • Industries
    • Welding >
      • Welding Gases
      • Welding Expertise
      • Welding Retail Locations
    • Food/Wine/Beer >
      • Food Freezing
      • Food Preservation
      • Wine
      • Beer
      • Beverage
    • Medical/Healthcare
    • Biotechnology >
      • Medical Imaging
    • Fuels and Refining
    • Chemical/Petrochemical
    • Electronics
    • Laboratory
  • Plants & Engineering
    • HyCO – Syngas
    • Air Separation
    • Pipeline Gas Delivery
    • Site Services
    • Engineering Services
  • Safety Products

Welding

Welding Gases

Expertise

Retail Locations

air- and oxy-fuel gases for flame torch

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.


Fuel Gases

Acetylene

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 Gases

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 Gas Mixtures

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 Gases Page of this website, and scroll to the Welding Shielding Gases section to find the right shielding gas for you, including both standard shielding gases and MATHESON Select shielding gases. You can rely on trained MATHESON experts to guide you to a successful solution. Call or use the links on these pages to contact us with your questions.

Resonator Gases, Assist Gases, Laser Gases and Equipment
gases used for laser cutting and fabrication

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.

table of laser-related gases
LaserPro Gas Mixtures Purity Specifications (ppm unless otherwise noted)

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.

WeldAssure Gas Purification
welding gas purification systems
The WeldAssure Series of Nanochem® Purifiers helps to eliminate contamination, which is an unpredictable barrier to success in high technology welding.

Shop WeldAssure

More on WeldAssure ultrapurification with Nanochem technology

Primary Sidebar

Contact MATHESON

800-416-2505

Question or Comment

 

Shop MATHESON

Store Locator

Shop Online

  • Facebook
  • Instagram
  • LinkedIn
  • Twitter
  • YouTube
  • About Us
  • Contact Us
  • Legal and Privacy Notices
  • Resource Center

Copyright © 2023 · MATHESON Tri-Gas, Inc.

We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept All”, you consent to the use of ALL the cookies. However, you may visit "Cookie Settings" to provide a controlled consent.
Cookie SettingsAccept All
Manage consent

Privacy Overview

This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience.
Necessary
Always Enabled
Necessary cookies are absolutely essential for the website to function properly. These cookies ensure basic functionalities and security features of the website, anonymously.
CookieDurationDescription
cookielawinfo-checkbox-advertisement1 yearThe cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Advertisement".
cookielawinfo-checkbox-analytics11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics".
cookielawinfo-checkbox-functional11 monthsThe cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional".
cookielawinfo-checkbox-necessary11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary".
cookielawinfo-checkbox-others11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other.
cookielawinfo-checkbox-performance11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance".
viewed_cookie_policy11 monthsThe cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data.
Functional
Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features.
Performance
Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors.
Analytics
Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc.
CookieDurationDescription
_ga2 yearsThe _ga cookie, installed by Google Analytics, calculates visitor, session and campaign data and also keeps track of site usage for the site's analytics report. The cookie stores information anonymously and assigns a randomly generated number to recognize unique visitors.
_ga_KHZ6Z729DQ2 yearsThis cookie is installed by Google Analytics.
Advertisement
Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. These cookies track visitors across websites and collect information to provide customized ads.
CookieDurationDescription
IDE1 year 24 daysUsed by Google DoubleClick and stores information about how the user uses the website and any other advertisement before visiting the website. This is used to present users with ads that are relevant to them according to the user profile.
test_cookie15 minutesThis cookie is set by doubleclick.net. The purpose of the cookie is to determine if the user's browser supports cookies.
VISITOR_INFO1_LIVE5 months 27 daysThis cookie is set by Youtube. Used to track the information of the embedded YouTube videos on a website.
YSCsessionThis cookies is set by Youtube and is used to track the views of embedded videos.
Others
Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet.
CookieDurationDescription
CONSENT16 years 6 months 13 days 7 hoursNo description
yt-remote-connected-devicesneverNo description available.
yt-remote-device-idneverNo description available.
SAVE & ACCEPT
Powered by CookieYes Logo