Mini Mill

Industrial specialty gases and technology for mini mills

Produce more with less

From CoJet® gas injection technology in electric arc furnaces to ladle preheating, Praxair’s industrial applications are helping your mini mill produce more steel at a lower cost. And we’re helping you do it in ways that use less energy and deliver improved environmental benefits.

See how we serve related industries.

Welding & Metal Fabrication

Related Gases

Argon Argon rollover Argon

A key component in our Argon Oxygen Decarburization technology, argon is used to create over 75% of the world’s stainless steel.

Oxygen Oxygen rollover Oxygen

Introducing oxygen into your iron and steel making processes can help you reduce fuel use, produce higher temperatures and lower production costs.

Nitrogen Nitrogen rollover Nitrogen

Found at the core of our heat-treating industrial applications, nitrogen is non-flammable gas used to rid unwanted gases from your processes.

Hydrogen Hydrogen rollover Hydrogen

Hydrogen is used to prevent oxidation and is the key component in the heat treating process.


Our state-of-the-art oxygen injection system, CoJet Gas Injection, is a leading industrial technology for burner, lancing and post-combustion in electric arc furnaces because it lowers cost and increases productivity.

With our Dilute Oxygen Combustion industrial technology you can easily convert burners to oxy-fuel systems to improve heat times and temperatures of your reheat furnaces and ladle preheating systems.

Whether you need hydrogen or nitrogen-based atmospheres, we provide cost-effective, high-productivity heat-treating industrial applications to help you achieve precise, reproducible results.

Adaptable to nearly every system and easy to install, our Laminar Barrier Inerting industrial application excludes unwanted gases from your processes to reduce oxidation and slag formation.


We offer more than industrial gases and applications to mini mills. We work with you to optimize your process. From consultation to implementation and use, we offer a range of services that help you manage your gas supply and make a better product.

View our services portfolio