--- title: "Steel Fact: What is Electric-Resistance Welding?" description: Steel Fact discuss what is electric resistance welding (ERW), includes a video detailing the ERW manufacturing processes at our Lone Star Tubular Operations facility in Lone Star, Texas. image: https://blog.usstubular.com/hubfs/usttub007.jpg --- ![top-logo-mobile](https://blog.usstubular.com/hs-fs/file-1036164316-png/images/top-logo-mobile.png)Made in the U.S.A. for more than 100 years [![top-logo-mobile](https://blog.usstubular.com/hs-fs/file-1036164316-png/images/top-logo-mobile.png)](https://blog.usstubular.com/hs-fs/file-1040512515-png/images/top-logo.png) ### [ussteel.com](http://www.ussteel.com) - share - [LinkedIn](http://www.linkedin.com/company/u-s-steel) © U. S. Steel Tubular Products. 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But what is ERW and how does it differ from seamless pipe? Read on for more information and a detailed video illustrating the manufacturing of ERW pipe at our facility in Lone Star, Texas. Simply put, electric-resistance welded pipe is manufactured by welding the seam of an uncoiled roll of steel sheet together using electrical current and applied force; this differs from seamless pipe, which is produced by using a rotary piercing mill to transform a heated billet into a tube shell before further processing turns it into a finished pipe. Depending on the application, Lone Star Tubular Operations can produce welded pipe anywhere from 4-1/2" to 16" in outside diameter.  Here is a video detailing how it all comes together: Today, you can find our ERW pipe all over the United States, including many prominent hydrocarbon producing regions such as the Permian and Marcellus shale plays.  We hope this has been informative.  If so, please consider subscribing by completing the form on the right to have future posts and updates delivered to your inbox.     Topics: [Lone Star Tubular Operations](https://blog.usstubular.com/lsto/topic/lone-star-tubular-operations), [Texas](https://blog.usstubular.com/lsto/topic/texas), [ERW](https://blog.usstubular.com/lsto/topic/erw) [![Blog Home](https://hubspot-no-cache-na2-prod.s3.amazonaws.com/cta/default/383778/862e4acf-098f-4948-a33f-8e2fe0c5a442.png)](https://hubspot-cta-redirect-na2-prod.s3.amazonaws.com/cta/redirect/383778/862e4acf-098f-4948-a33f-8e2fe0c5a442) ### Subscribe to Receive Updates ### Recent Posts ### Posts by Topic - [Lone Star Tubular Operations (9)](https://blog.usstubular.com/lsto/tag/lone-star-tubular-operations) - [Texas (9)](https://blog.usstubular.com/lsto/tag/texas) - [ERW (7)](https://blog.usstubular.com/lsto/tag/erw) - [Jobs (5)](https://blog.usstubular.com/lsto/tag/jobs) - [Premium Connection (1)](https://blog.usstubular.com/lsto/tag/premium-connection) - [Robotics (1)](https://blog.usstubular.com/lsto/tag/robotics) - [Technology (1)](https://blog.usstubular.com/lsto/tag/technology) see all ## Welcome to Steel Talk! ### We will share exciting news periodically here and encourage you to check back and share information to those that might be interested. - [Fairfield Electric Arc Furnace #1 Construction Update](https://blog.usstubular.com/eaf) - [Lone Star No. 1 Mill Restart Progress](https://blog.usstubular.com/lsto) © U. 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