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Our Carbon Steel Round Tube, 4in-OD, 4ft-L, is a versatile and durable product suitable for a variety of applications, including automotive, industrial, and plumbing projects. Made from high-quality A513 carbon steel, this tube offers excellent machinability and can be heat treated for enhanced strength. With a yield strength of 45,000 psi and a Rockwell hardness of 60 HRB, it provides reliable performance in demanding environments. Its plain appearance and mill finish make it ideal for use in fabrication, manufacturing, and other applications where a strong, durable material is required. Order now and experience the benefits of our premium carbon steel round tube.