As dredging operations expand into open and deep seas, conveying pipes suffer combined abrasion from high-sand slurry erosion and corrosion, a major bottleneck limiting continuous operation of dredging machinery. HISAN wear-resistant pipes feature a composite structure with Q355B outer base pipe and high-chromium alloy inner lining alongside strict welding quality control. Customized for port, offshore and deep-sea working conditions, the pipes deliver superior anti-abrasion and anti-corrosion performance to prolong service life and slash maintenance expenses. The product advances localized manufacturing of core dredging components and fuels high-quality development of China’s industrial sector.