Galvanized Steel Wire for Offshore & Marine Cable Armouring

Offshore and coastal armour has to survive salt air and intermittent wetting on cables that are hard to replace. The challenges we solve:

• Rapid corrosion in the splash zone, where salt spray and repeated wetting attack any thin coating.
• Cables that cannot easily be replaced, so corrosion margin and documentation matter as much as price.
• Mechanical strength for platform, harbour and renewable-energy installations.
• Third-party inspection and coating verification for offshore project requirements.
• Matching the coating class to the exposure — full immersion, splash zone or salt air.

Marine and offshore armour protects cables that cannot easily be replaced, so corrosion margin and documentation matter as much as price.

Offshore platform and topside cabling, coastal and harbour power and telecom cables, splash-zone and intertidal runs, and the marine connections of wind and solar installations all fall here. Each sees salt in some form, so the common thread is a heavy coating and dependable documentation rather than a single fixed specification.

• Offshore platform and topside cabling
• Coastal and harbour power / telecom cables
• Splash-zone and intertidal installations
• Renewable-energy (wind/solar) marine connections

For salt-air and splash-zone service we recommend heavy or extra-high zinc coating with verified coating mass and adhesion. We provide coating and tensile reports and can support third-party inspection for offshore project requirements.

Marine cable does not see one single environment, so the coating should match the exposure band rather than a single blanket spec. Fully immersed sections behave like submarine cable and want heavy or extra-high coating; splash-zone and intertidal sections — wetted and dried repeatedly by salt spray — are actually the most aggressive band of all and need the same generous coating margin; and topside or salt-air runs need a heavy coating but not necessarily the maximum. Matching the class to the band avoids both early failure where the coating is too light and needless cost where it is heavier than the exposure demands.

We help you map the coating class to each part of the run and supply wire with verified coating mass and adhesion for the band that governs the design. Coating-mass and tensile reports come with the batch, and we can arrange third-party inspection for the project file where an operator or class society requires it. Tell us where the cable sits — fully immersed, in the splash zone, or in salt air — along with the standard and the design life, and we will recommend a coating class for each section, confirm it against the standard, and hold to it in production so the delivered wire matches what was specified.

For renewable-energy connections and harbour infrastructure, where one cable length can combine buried, splash-zone and topside runs, this section-by-section approach is what keeps the whole cable protected for its full design life.

Offshore and marine armour wire is produced to AS/NZS 4534, EN 10244-2 or ASTM A641, with heavy or extra-high zinc coating. Zhongbo manufactures to your project standard and supplies coating-mass and tensile reports, with SGS, BV or customer-designated inspection on request. Tell us the exposure and standard and we will recommend the coating class and documentation plan.

Offshore and coastal projects choose us for corrosion margin and inspection-ready documentation. What sets our wire apart:

• Heavy and extra-high zinc coating for salt-air and splash-zone service life.
• Verified coating mass and adhesion, not just a nominal figure.
• Mechanical strength customizable to the project standard.
• Coating-mass and tensile reports, with third-party inspection support.
• Seaworthy export packing for long-distance offshore project logistics.