Passivated pickling seamless steel tubes have hollow cross-sections and are extensively used as pipelines for conveying fluids, such as oil, natural gas, coal gas, water, and certain solid materials. Compared to solid steel materials like round bars, they have the same bending and torsional strength but are lighter in weight, making them an economical section steel. The spot price for 45# thick-walled seamless steel tubes with high hardness for mechanical use, including tax, is 4040.00 USD per ton. The weighing method is by weight, and the quality grade is accompanied by a quality guarantee certificate. Seamless steel tubes of any specification are available for customization with fast delivery and quality assurance, ensuring tonnage. For many years, we have gained a reputation throughout the country for our good reputation, quality products, strong capabilities, and low prices.