As several container trucks loaded with high-quality steel slowly drove out of the factory area, Shandong Haihui Steel Industry Co., Ltd. announced that a batch of CK45 (1045) high-precision seamless steel pipes with a total weight of 120 tons had completed precision machining and strict testing, and officially departed for Ho Chi Minh City, Vietnam.
This batch of orders will be delivered to a well-known local manufacturer of hydraulic systems and precision mechanical components in Vietnam for the production of their new generation of high-end hydraulic piston rods and structural shaft products.
Core competitiveness: The ultimate pursuit of ± 0.05mm
Vietnamese customers have strict technical requirements for this batch of CK45 precision pipes, especially the dimensional tolerance must be stably controlled within ± 0.05mm (5 threads), and the inner wall roughness Ra must be below 0.4 μ m.
Haihui Steel Industry, with advanced precision rolling technology and CNC monitoring equipment, not only perfectly achieves the accuracy standards required by customers, but also ensures excellent stability and toughness of CK45 material in subsequent cutting processes through NBK (normalizing) heat treatment technology. We chose Haihui because they have demonstrated convincing technical data in high-precision control and material purity, “the procurement manager of the Vietnamese customer said in an email.Digital control ensures’ zero defect ‘delivery.
During the production process, Haihui Steel strictly adheres to the IATF 16949 quality management system. Each steel pipe undergoes 100% eddy current testing (ET) and ultrasonic testing (UT) before leaving the warehouse to ensure that there are no cracks or inclusions inside. At the same time, in response to the humid maritime climate in Southeast Asia, this batch of goods has been coated with high-grade anti rust oil and packaged in double-layer vacuum woven bags, ensuring that the surface of the products is as smooth as before when they arrive in Vietnam.
Post time: May-25-2026