| Alliance Activities |
In order to service the full range of customer requirements in the three primary business segments of oilfield products, specialty tubing products and flat rolled steel, U. S. Steel Tubular Products has alliance agreements with other manufacturers. The facilities which supplement U. S. Steel Tubular Products' full service product offerings are listed below. Point to the icons with your mouse for more information.
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U. S. Steel Tubular Products' Alliance Mills O.D. Size Offerings |

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 | Texas Tubular Products Mill Location: Lone Star, Texas | |
| Texas Tubular Products, located near the Texas Operations main plant, produces API casing and line pipe in diameters 4.500 through 8.625 inches. This facility specializes in X42 line pipe and J55 casing. U. S. Steel Tubular Products markets these tubulars under the "Starweld" brand. Starweld brand tubulars are warranted by U. S. Steel Tubular Products To learn more about this facility, visit www.friedmanindustries.com. |
 | Tex-Tube Company Mill Location: Houston, Texas | |
| Tex-Tube Company manufacturers line pipe in grades to X65 in diameters 2.375 through 8.625 inches. Tex-Tube is a leading manufacturer of carbon steel pipe. Over the years Tex-Tube has earned a reputation for exceptional product quality and outstanding customer service. Tex-Tube is licensed to API 5CT and 5L and certified to ISO 9002. U. S. Steel Tubular Products markets line pipe produced by this facility under the Tex-Tube brand and casing under the "Starweld" brand. To learn more about this facility, visit www.tex-tube.com. |