Zinc Alloys Sacrificial Anodes Product Description: Standard: ASTM-B418, MILA-1800I/J, GB/T4950-2002, SY/T0019-97 Main Performance: Low anodic solubility, high current efficiency, good self-regulating performance of the anodic current; long protection life, up to 20-30 years, generally no "overprotection" phenomenon. Application Range: Suitable for cathodic protection of metal anti-corrosion facilities in ship hulls, ballast tanks, machinery and equipment, marine engineering and harbor facilities, drilling platforms, port wharfs, condensers in seawater medium, pumps, and pipelines and cables in low resistivity soil. Product Features: The ZAC series sacrificial anodes are cast using high-purity zinc and aluminum-cadmium alloys. The product is recognized by the China Classification Society (CCS) and meets the quality standards of GB/T4950-2002. The zinc anode chemical composition conforms to US MIL-A-18001H and ASTM-B418 (Type 1) standards. The anodes used for pipelines also comply with SY/T0019-97 "Design Code for Cathodic Protection of Buried Steel Pipe Sacrificial Anodes."