BS4568 galvanized steel pipe, due to its superior surface quality and durability, is a preferred material for the construction, electrical, and agricultural sectors. One of its core advantages is its pitting-free surface, a feature derived from the advanced hot-dip galvanizing process and stringent quality control. During the galvanizing process, the steel pipe undergoes multiple pre-treatment steps, including pickling, cleaning, and fluxing, to ensure that the surface is free of impurities such as iron oxide scale and oil, thereby preventing zinc slag from the zinc bath from adhering and forming pitting. Furthermore, the use of solid-state high-frequency welding technology reduces internal weld seams to less than 0.1mm or even zero, resulting in smooth, flat welds and further minimizing surface defects.
The efficiency of BS4568 galvanized steel pipe is significantly improved due to its excellent mechanical properties and convenient installation. This standard steel pipe typically has a wall thickness of 1.6-2.0mm, compared to the 2.5-3.5mm of traditional SC steel pipe. This allows for longer lengths per unit weight (for example, a φ20 pipe can reach up to 1,495 meters per ton, while an SC20 pipe can only reach 625 meters), significantly reducing transportation and installation costs. Furthermore, the pipe undergoes factory finishing processes such as flattening, threading, oiling, and capping, resulting in a smooth, burr-free interior, which protects against damage to wire insulation. This also facilitates on-site installation and reduces labor time.
Another key advantage of BS4568 galvanized steel pipe is its long lifespan. The zinc coating on both the inner and outer surfaces is ≥45μm thick, meeting heavy-duty corrosion requirements. This effectively isolates the pipe from the external environment and slows corrosion. In harsh environments such as humidity, acidity, and alkalinity, the zinc layer corrodes preferentially, forming a dense oxide film that protects the substrate from erosion. For example, in high-humidity environments such as coastal areas or agricultural greenhouses, BS4568 steel pipe can achieve a service life of over 10 years, far exceeding that of ordinary steel pipe. Furthermore, the environmental friendliness of steel pipes ensures their long-term use. No harmful substances are emitted during the production process, and they are recyclable upon scrapping, aligning with the concept of green building.
With its pitting-free surface, high efficiency, and long lifespan, BS4568 galvanized steel pipes are an ideal choice for demanding engineering projects. They are widely used in electrical wiring, agricultural greenhouses, and building structures.
Post time: Aug-11-2025