Longitudinal Welded Steel Pipes for pilling in Construction
HSN code: 7305.1121
Steel Grade: API5LX65/S460 , LSAW Welded
For longitudinal welded steel pipes used for piling for construction, with HS code 7305.11 and steel grade API 5L X65/S460, LSAW welded, the choice between galvanized or non-galvanized depends on the application and environmental conditions:

• Non-galvanized: Typically used for piling in construction, especially for deep foundation work, where corrosion resistance is less critical. Piling pipes are often driven into the ground, filled with concrete, and protected by surrounding soil or concrete, reducing exposure to corrosive elements. API 5L X65/S460, designed for high-strength pipeline applications, is commonly supplied non-galvanized for piling unless specified otherwise, as galvanization adds cost without significant benefit in such conditions.
• Galvanized: Recommended if the piling pipes are exposed to corrosive environments, such as coastal or marine settings (e.g., near Antwerp port), where saltwater or high moisture could accelerate corrosion. Galvanization (zinc coating) enhances corrosion resistance, extending service life in aggressive conditions. However, galvanizing large-diameter LSAW pipes is less common and may increase costs significantly.

Recommendation: For standard piling applications, non-galvanized pipes are sufficient and more cost-effective, especially for deep foundations where the pipe is encased or buried. If the piling is for marine or highly corrosive environments in the Netherlands, consider galvanized pipes or consult the project specifications for corrosion protection requirements. Verify with the buyer or project engineer if galvanization is mandated.

HSN Code: 730511
73051119 : Galvanized pipes – Other
73051111 : Galvanized pipes – Of Iron
73051129 : Non – Galvanized pipes – Other
73051121 : Non – Galvanized pipes – Of Iron