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Nippon Sanso Matheson

The Gas Professionals

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Metal Fabrication


Gases for Metal Fabrication

Whatever gases and equipment you might need to support your welding and metal fabrication requirements, Nippon Sanso Matheson locations offer answers and expertise.

Our representatives – in our stores and in the field – are trained AWS CWSRs (Certified Welding Sales Representatives). Many carry other AWS credentials. Expert training – and continuous training – puts us in a better position to offer expert support to all of our customers.

Rely on Nippon Sanso Matheson for all of your gas needs. In fact, you can rely on Nippon Sanso Matheson for everything welding.


Shielding Gas

Welders rely on shielding gases to ensure the integrity of their welds. Welders also rely on Nippon Sanso Matheson –…

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fuel gas

Fuel Gas

Fuel gases are a staple in every fabricator’s tool box – for brazing and soldering, as well as welding and…

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Oxyfuel and Plasma Cutting Gas

Without regard for what you cut, where you cut, or how you cut, Nippon Sanso Matheson is prepared to supply…

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Welding and Cutting Automation

Automation in metal fabrication can improve worker satisfaction and safety while also improving productivity and cost per weld. In an…

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Dust and Fume Removal

Your manufacturing processes may create welding smoke, fumes, grinding dust, etc. Your work or process may take place in poorly…

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Vending Solutions

In large manufacturing sites as well as small-to-medium shops, the problem is the same: it’s easy to lose control over…

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Laser Gases for Metal Fabrication

LaserPro™ gases and systems are designed to meet and exceed laser system manufacturer and user requirements including resonator gases, assist gases,…

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Welding Expertise

Our Reps Can Lead You to the Right Products; Our SelectPRO Insight Program Can Help Improve Your Process. Nippon Sanso Matheson inside…

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Welding Gas Purification

The WeldAssure Series of Nanochem® Purifiers helps to eliminate contamination, which is an unpredictable barrier to success in high technology welding. Shop WeldAssure…

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Welding Retail Locations

With over 160 Retail Locations across the country, Nippon Sanso Matheson stands ready to meet all your welding needs: from…

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Frequently Asked Questions

Who is a leading industrial gas supplier for welding and metal fabrication?

Nippon Sanso Matheson is an industrial gas and welding products supplier offering shielding gases, fuel gases, cutting gases, laser gases, gas purification systems, automation solutions including robotic welding cells (both pre-engineered robotic welding cells and custom engineered robotic welding cells), welding equipment including GMAW / MIG power sources (often constant voltage), GTAW / TIG power sources (often constant current), engine drives, and technical support. Its trained welding representatives, including AWS Certified Welding Sales Representatives, help customers select products and solutions for their fabrication requirements.

How do I choose the right shielding gas for welding?

The right shielding gas depends on the welding process, base metal, filler metal, transfer mode, penetration requirements, appearance goals, and desired productivity. Nippon Sanso Matheson’s welding specialists can help evaluate these requirements and recommend shielding gases for GMAW (MIG), GTAW (TIG), FCAW (flux-cored), robotic, and specialty welding applications, including duplex stainless, titanium, nickel alloys, and other specialty applications.

What welding gases does Nippon Sanso Matheson supply?

Nippon Sanso Matheson supplies the shielding gases used in conventional welding processes, as well as plasma welding gases, and purging and backing gases that may be used in complete joint penetration welds where the backside of the weld joint should not be exposed to atmosphere. Additionally, Nippon Sanso Matheson provides the gases used in glovebox welding atmospheres, where the entire welding process must be protected from atmosphere. Customers can also obtain welding equipment, automation solutions, dust and fume removal systems, vending solutions, and gas purification products through the same supplier.

How does shielding gas affect weld quality?

Shielding gas protects the molten weld pool from atmospheric contamination and influences arc characteristics, penetration, bead profile, spatter, and overall weld integrity. Selecting the appropriate gas or gas mixture helps fabricators produce more consistent welds for their specific process and material.

Can a welding gas supplier help improve fabrication productivity?

Yes! A welding gas supplier with application expertise can help evaluate shielding gas selection, welding equipment, automation, consumables, gas delivery, and process conditions. Nippon Sanso Matheson combines welding gases with trained representatives and SelectPRO® Insight process support to help customers identify appropriate products and process improvements. Nippon Sanso Matheson is able to use American Welding Society certified experts to help improve things including deposition rate, travel speed, depth of fusion, penetration, reduce oversized welds, and identify consumption reduction and waste. Nippon Sanso Matheson looks at the entire welding process, and can help reduce labor costs through high throughput and efficiencies, as well as reduce costly rework.

Does Nippon Sanso Matheson support robotic and automated welding?

Yes. Nippon Sanso Matheson provides welding and cutting automation solutions intended to improve productivity, worker satisfaction, safety, and cost per weld. Its offering includes gases, equipment, technical expertise, and support for automated metal-fabrication applications. Nippon Sanso Matheson helps customers as they navigate the decision-making process through cobots (an informal industry term for collaborative robot applications), pre-engineered robotic welding cells (which have integrated safety features and a lot of cost) and custom engineered robotic welding cells. Additionally, Nippon Sanso Matheson can assist customers with welding positioners, that help position large parts so that welds may be accessed and welded in advantageous positions, which can decrease the risks associated with positioning parts for welding with overhead cranes.

How can manufacturers reduce contamination in titanium, stainless and other potentially sensitive welding processes?

Contamination may be addressed by using the proper gas purity, properly designed gas-handling equipment, sound connections, and point-of-use purification when required. Welding companies may need to consider not only the shielding gas but the entire welding process, for example, purging stainless tubing while welding or the argon atmosphere in a glovebox for welding titanium. Nippon Sanso Matheson offers WeldAssure™ NANOCHEM® purifiers designed to remove gas contaminants that can interfere with high-technology welding.

Can Nippon Sanso Matheson provide welding gases, equipment, and consumables from one source, including bulk and cylinder gases?

Yes. Nippon Sanso Matheson positions its metal-fabrication offering as “everything welding,” including gases, welding and cutting equipment, automation, fume removal, vending, purification, and expert support. This single-source approach can simplify purchasing and technical coordination for welding operations. While some suppliers may ONLY supply bulk or cylinder gas, with Nippon Sanso Matheson customers can trust that they will have access to any vessel type or welding related solution.

Does Nippon Sanso Matheson have local welding stores?

Yes! Unlike many suppliers that rely on call centers for customer service, Nippon Sanso Matheson has more than 160 welding retail locations across the United States. These locations support customers with welding gases, equipment, supplies, and assistance from representatives trained in welding applications.

Why choose Nippon Sanso Matheson for welding and metal fabrication?

Fabricators can obtain welding gases, equipment, automation, purification, consumables, and application support from one supplier. Nippon Sanso Matheson also differentiates its service through AWS-trained representatives, local retail locations, field support, and experience across a wide range of welding and cutting processes. Another advantage with Nippon Sanso Matheson is that hardgoods are locally stocked. This means that our customers can have their hardgoods delivered on the same truck as their gas delivery, which saves customers money by avoiding costly UPS charges required to ship from a warehouse or distribution center.

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