Industrial Utility Efficiency    

Video Explores Differences Between Stainless Steel Grades in Cooling Towers

SPX Cooling Technologies, Inc., a full-line, full-service industry leader in the design and manufacture of evaporative cooling towers and air-cooled heat exchangers, announces the release of an informational video that examines the differences between Grade 301L and Grade 304 stainless steel for cooling tower applications. 

SPX Video

In this video, SPX Cooling Technologies Materials Engineer Joe Evans discusses the science behind the material attributes of 301L and 304 stainless steel and why 301L is the preferred material for Marley cooling towers when stainless steel components are specified. While nearly identical in their chromium and nickel content and ability to resist chemical attack and corrosion in typical cooling tower environments, the low-carbon content of Grade 301L offers superior corrosion resistance at welds compared with Grade 304.

In addition, the specific grade of 301L stainless steel used by SPX Cooling Technologies offers higher yield and tensile strength and better fatigue resistance. It also cold-works faster to reduce thinning and provide higher strength in formed areas.

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About SPX Cooling Technologies, Inc.

SPX Cooling Technologies, Inc. is a leading global manufacturer of cooling towers, evaporative fluid coolers, evaporative condensers and air-cooled heat exchangers providing full-service cooling solutions and support to customers in the heating, ventilation and air conditioning (HVAC), industrial, refrigeration and process cooling markets for nearly a century. SPX Cooling Technologies and its product brands are part of SPX Corporation. For more information, please visit

About SPX Corporation

SPX Corporation is a supplier of highly engineered products and technologies, holding leadership positions in the HVAC, detection and measurement, and engineered solutions markets. Based in Charlotte, North Carolina, SPX Corporation had approximately $1.4 billion in annual revenue in 2017 and more than 5,000 employees in about 15 countries. SPX Corporation is listed on the New York Stock Exchange under the ticker symbol “SPXC.” For more information, please visit