Seamless & Welded Steel Tubing for Mechanical & Hydraulic Systems

Ruixiang Steel is a trusted global supplier of high-precision steel tubing for demanding applications in mechanical engineering, hydraulic systems, automotive, and industrial machinery. We offer both seamless and welded steel tubing in carbon steel, alloy steel, and stainless steel grades—including ASTM A519, DIN 2391, EN 10305, and API 5L—ensuring superior strength, dimensional accuracy, and pressure resistance.

Our seamless tubes are ideal for high-pressure hydraulic cylinders, shock absorbers, and precision shafts, with outer diameters from 6mm to 325mm and wall thicknesses up to 40mm. Welded tubing options provide cost-effective solutions for structural supports, roll cages, and fluid conveyance, available in round, square, and rectangular profiles. All products undergo rigorous testing—including hydrostatic pressure, ultrasonic inspection, and hardness checks—and come with full mill test certificates.

As an ISO 9001-certified manufacturer based in Shandong, China—just hours from Qingdao Port—we deliver factory-direct pricing, short lead times, and flexible order sizes. We support custom cutting, chamfering, bundling, and protective packaging to meet your project specifications.

Whether you need cold-drawn seamless tubing for hydraulic rams or ERW welded tubes for mechanical frames, Ruixiang Steel combines quality, reliability, and responsive service. Our export team handles logistics to over 80 countries with on-time delivery guaranteed.

Request a quote or sample today! Contact us via WhatsApp (+86 132 8756 7777), email (ceo@ruixiangsteel.cn), or visit https://www.rui-xiangsteel.com/contact-us.html.