Hot-Dip Wire Rope

Hot-Dip Galvanized Steel Wire Rope

Heavy-Duty Corrosion Protection with Hot-Dip Galvanizing

Hot-dip galvanized steel wire rope—also commonly referred to as hot dip galvanized wire rope or hot dipped galvanized steel cable—is designed for tough, corrosive environments where maximum durability and long service life are essential. This rope is produced through a hot-dip galvanizing (HDG) process, in which cleaned steel wire is fully immersed in molten zinc at temperatures of around 860°F (460°C).

The full process includes:

Finished product pickling → water washing → adding booster solution → drying → rack plating → Cooling → dosing → cleaning → polishing → hot-dip galvanizing

Unlike electro-galvanized wire rope, this method forms a thicker, metallurgically bonded zinc-iron alloy layer, making it highly resistant to abrasion, rust, and chemical attack. The result is a zinc-coated steel cable with excellent mechanical performance and corrosion protection, ideal for heavy-duty outdoor, marine, and industrial applications.

Why Choose Hot-Dip Galvanized Wire Rope?

Thick, durable zinc coating – Offers up to 5x the protection of electro-galvanized cable

Excellent abrasion resistance – The zinc-iron alloy layer resists mechanical wear in harsh conditions

Superior corrosion resistance – Ideal for marine, coastal, or highly humid environments

Strong adhesion – Zinc layer becomes part of the steel, preventing flaking or peeling

Longer service life – Minimizes maintenance costs and replacement frequency

Excellent mechanical properties – Maintains high tensile strength and flexibility

Zinc coating weights for hot-dip galvanized wire ropes vary depending on the applicable standards and usage scenarios:

ISO 1461: ≥100 g/m² – For general industrial use (e.g., structural components)
ASTM A123: 150–300 g/m² – For harsher environments like marine or chemical exposure
Class A (heavy coating): 200–350 g/m² – For high-corrosion areas such as offshore platforms and coastal zones
Class B (standard coating): 60–150 g/m² – For normal outdoor use like construction or utility applications

When selecting the right coating weight:

For general outdoor environments, a coating of ≥100 g/m²is typically sufficient
For marine or highly corrosive conditions, a coating of ≥200 g/m²is strongly recommended

We can customize the zinc coating thickness based on your specific requirements, ensuring the right level of protection for your environment and application.