Metals & Materials Processing

Industrial gas supply, technology & equipment for metal production

Strengthening your process

As the preeminent outsourced gas supplier to the metal production industry, we at Praxair are proud to supply hundreds of steel and non-ferrous mills worldwide with industrial gases that help skyscrapers soar, trains run, and ships sail. Praxair’s industrial gases are used extensively in metal production to lower cost, improve energy efficiency, deliver environmental benefits, and improve productivity.

But our relationship with our customers goes much deeper than just industrial supply. We offer a wide range of services that include the design, build, start-up and support of applications equipment. And we provide everything from cylinders to on-site systems to integrated mills, mini mills, steel mills, foundries and non-ferrous mills for combustion processes. When you get all of your solutions from one industrial gas supplier, you have the time and the freedom to focus to on your business.

See how we serve related industries.

Industrial applications for the metal production Industry

OPTIVIEW™ Image Analysis System

The Praxair OPTIVIEW Image Analysis System uses flame image analysis technology to enhance combustion control and reduce emissions. This innovation enables real-time, automatic control of the energy introduced into the melting process.

Argon Oxygen Decarburization

Over 75% of the world’s steel is made with our Argon Oxygen Decarburization (AOD) process. Lower your material costs, produce cleaner metals and increase productivity with AOD.

Direct Oxygen Injection

Used in foundries, mini mills and stainless steel mills, our CoJet® gas injection and Supersonic direct injection processes lower costs and improve furnace productivity.

Oxygen-Enhanced Combustion

Our Dilute Oxygen Enhanced Combustion system helps convert your furnace air-fuel burners into oxy-fuel burners — increasing productivity, and decreasing fuel consumption, operating costs and emissions.

Heat Treating

From annealing and brazing to sintering and carburizing, our nitrogen and hydrogen-based heat-treating processes are low in cost, high in productivity, and help your operators precisely meet specifications.

Precise, Reproducible, Traceable Atmospheres (2.2MB) 

Hot Oxygen Technology

Our hot oxygen system rapidly burns hard to combust materials and easily preheats oxygen to high temperatures at point of use.


Our Laminar Barrier Inerting technology reduces alloy oxidation, slag formation, and dissolved oxygen, nitrogen, and hydrogen in metals to produce better fluidity, easier casting and fewer flaws.

OPTIFIRE ™ Fluidic Burner

Our newest technology, the OPTIFIRE fluidic burner is full of features that increase energy efficiency and productivity. A remote controlled operation allows the direction of flame at cold scrap and accelerating meltdown in the furnace. Heating efficiency and effectiveness is programmed to move from cold spot to cold spot on both horizontal and vertical planes. Reliability is always-on, the result of solid state (no moving parts) design that maximized your uptime and minimizes your cost.

Stove Oxygen Enrichment

Generate higher blast temperatures without burning more fuel. With our Stove Oxygen Enrichment application, we can help you reduce or potentially eliminate the need for fuels like coke oven gas and natural gas.

Mining Applications

To optimize your mining and metals processing operations, we supply gases for mine inerting, flotation, leaching, roasting, pressure oxidation, carbonate precipitation, and pH control and water treatment.

Industrial services for the metal production Industry

Working with Praxair 

Praxair, Inc. and United Process Controls, Inc. work together to combine Praxair’s expertise in industrial gases and process knowledge with United Process Controls’ technologies and equipment. This combination better enables the expanding requirements of the heat-treatment market to meet quality product needs and reproducible standards in their furnace operations. The goal is to continually develop support systems that optimize quality, safety, and control of each process while minimizing gas consumption and reducing energy waste.
United Process Controls Inc. provides process control, flow control, and automation solutions to furnace OEMs and customers with thermal processing equipment and operations. The company is now comprised of five brands: Atmosphere Engineering, Furnace Control Corporation, Marathon Monitors, Process-Electronic, and Waukee Engineering. The product offerings range from probes, analyzers, flow meters, programmable controllers, and generator mixing control systems. 

United Process Controls, Inc. Website

United Process Controls, Inc. Logo

We do more than provide industrial gases, technologies and applications to the metal production industry. We will help you optimize every step of your process. From consultation to implementation and use, we offer a range of industrial services that help you monitor and manage your gas supply and help you make a better product.