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Offshore & Marine Aluminum Welding

-- Steady & Reliable Manufacturer --

Intro

Certified Aluminum-Magnesium filler metals optimized for maximum corrosion resistance and structural integrity in high-salinity and exposed offshore environments.

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Introduction

Offshore structures, deck equipment, and specialized marine vessels face extreme corrosive conditions. Our filler metals are specifically focused on high-magnesium content (e.g., ER5183, ER5087) to provide the highest level of resistance to saltwater and atmospheric corrosion available in aluminum consumables. Beyond corrosion, the wires deliver high-strength weldments essential for maintaining stability and load-bearing capacity in dynamic sea states, often required by leading classification societies for critical marine use.

Specification

Classification (AWS)ER5087 / ER5183
CertificationABS, DNV GL (specifically for offshore/marine use)
Base Metal Compatibility5083-H116, 5456, 5086 (Marine Grade Alloys)
Magnesium ContentTightly controlled (e.g., 4.5% to 5.2% Mg)
Weld PorosityMinimal, controlled to meet NDT requirements

Applications

  • Welding aluminum components on FPSOs (Floating Production, Storage, and Offloading units).

  • Fabrication of aluminum pipework and gangways on offshore platforms.

  • Repair of high-speed ferry and catamaran hulls exposed to continuous sea spray.

  • Joining components in desalination plants and near-shore installations.

FAQ

  • Q: What risks are associated with using non-marine grade fillers in a high-salinity environment?
  • A: Non-approved fillers, particularly those with lower magnesium content or higher copper/silicon, have an increased susceptibility to pitting, intergranular corrosion, and stress corrosion cracking when exposed to persistent saltwater or spray.
  • Q: Does your ER5087 meet the low manganese content requirements for certain marine specifications?
  • A: Yes, the chemistry of our ER5087 is tightly controlled to meet specific requirements where Manganese (Mn) content must be minimized, such as in certain 5083 applications.

Advantages

  • Maximum Saltwater Resistance: The high magnesium composition forms a robust, protective oxide layer that resists chloride attack and general corrosion.

  • Class Approved: Holds major marine classification certificates (ABS, DNV) which are mandatory for structural work on registered vessels and offshore units.

  • Structural Performance: Weld deposits provide the necessary yield and tensile strength required for structural safety in high-stress, dynamic marine applications.

  • Consistent Feeding: Reliable feedability minimizes stops and starts, crucial for long-run welds in large marine assemblies.

Payment and Shipping

  • Export Readiness: Expertise in handling export documentation required for marine and specialized international projects.

  • Packaging Integrity: Enhanced moisture barrier packaging is utilized to prevent any atmospheric degradation before use in humid shipyard environments.

  • Certificates: Full compliance certification issued for every marine-grade shipment.

About Us

Coming From China, Marketing To The World.

Hangzhou Kunli welding materials Co., Ltd. is China Offshore & Marine Aluminum Welding Manufacturers and Wholesale Offshore & Marine Aluminum Welding OEM/ODM Suppliers. We are located in the industrial zone of Puyang Town, Xiaoshan District, Hangzhou, Zhejiang Province. It is a high-technology enterprise specializing in the research, development and manufacturing of high-performance. The company has more than 20 years of aluminum alloy wire production experience, with international advanced manufacturing equipment, complete testing equipment,stable production process and strict quality control system.
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