Zinc sacrificial anode technology has undergone nearly 200 years of development, resulting in a complete material system, design standards, construction specifications, and operation and maintenance system. In the extremely complex environment of the chemical industry, various devices, pipelines, storage tanks, and steel structures are subjected to long-term extreme corrosion from strong acids, strong alkalis, high

Zinc sacrificial anodes, with their unique technological advantages, have become the preferred solution for cathodic protection of small and medium-sized storage tanks and tanks in complex environments. They require no external power source, are extremely low-cost, and are suitable for tanks in remote areas without power supply. Their uniform current distribution, stable operating potential, and

Zinc sacrificial anode cathodic protection technology has been widely used in the bridge industry. As early as 1824, British scientist Humphry Davy first discovered the electrochemical protection principle of sacrificial anodes and applied it to the corrosion protection of British naval vessels. After nearly a century of technological iteration, a complete standard system, design methods,

In the 1920s, the United States first applied zinc sacrificial anodes to the corrosion protection of buried oil pipelines, initiating the large-scale application of zinc anodes in pipeline engineering. In the 1950s, zinc-aluminum-cadmium anodes significantly improved the current efficiency and dissolution uniformity of zinc anodes, becoming the mainstream product in pipeline engineering. Advantages of Zinc

Zinc sacrificial anodes, as a core technology for cathodic protection of oil and gas facilities, have become the preferred solution for corrosion protection of steel structures such as onshore/offshore oil and gas pipelines, storage tanks, platforms, and well casings. Oil and gas facilities are often located in highly corrosive environments such as seawater, salt spray,

Zinc sacrificial anodes maintain a stable working potential of -1.05 to -1.10 V (CSE) in seawater/soil. They create a moderate driving potential with carbon steel (-0.55 to -0.85 V), avoiding the risks of coating delamination and hydrogen embrittlement caused by overprotection, and exhibiting a stable current efficiency of 90%–95%. Zinc anodes are indispensable in freshwater,

Zinc-aluminum-indium sacrificial anodes are high-performance products in the zinc sacrificial anode series. Compared to traditional zinc-aluminum-cadmium sacrificial anodes, indium replaces toxic cadmium, retaining the core advantages of zinc-based anodes such as stable potential and high current efficiency, while also achieving an environmentally friendly upgrade. Zinc-aluminum-indium sacrificial anodes have been widely used in various corrosive media

Zinc-aluminum-cadmium (Zn-Al-Cd) sacrificial anodes are the best-performing type among zinc sacrificial anodes. Thanks to their core advantages such as stable potential, high current efficiency, uniform dissolution, and strong compatibility, they have become the preferred material for cathodic protection in seawater, saline mud, and low-resistivity soil environments. The core application range of Zn-Al-Cd anodes is: ambient

Zinc sacrificial anodes are widely used for corrosion protection of steel structures in various media such as seawater, freshwater, and soil, due to their stable electrical performance, high current efficiency, and convenient installation. They are one of the most widely used and technologically mature sacrificial anode materials currently available. Working Principle of Zinc Sacrificial Anodes

Rudder zinc anodes corrodes preferentially, providing a continuous flow of electrons to the steel base of the rudder, inhibiting the oxidation reaction of iron (Fe→Fe²⁺+2e⁻), and fundamentally blocking the electrochemical corrosion process. This extends the rudder’s service life by 5-10 years. The rudder, as a core component for controlling the ship’s sailing posture, is constantly

Flexible zinc sacrificial anode strips, as a specialized product within the sacrificial anode family, overcome the limitations of traditional block and bracelet-type zinc anodes in complex structures due to their excellent flexibility, wrap-around capability, and spatial adaptability. They have become the preferred solution for applications such as buried pipelines, internal facilities of casings, storage tank

Bolt-on zinc sacrificial anodes are an important category of zinc sacrificial anodes. Unlike welded or bracelet-type anodes, they achieve electrical connection to the protected metal via bolts. In an electrolyte environment, the zinc sacrificial anode preferentially oxidizes and dissolves, providing a continuous cathodic protection current to steel and other structures, thereby inhibiting galvanic corrosion. They