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Aluminum-Magnesium Alloy Welding Wire

-- Steady & Reliable Manufacturer --

Solid-Solution Strength

Al-Mg welding wire (the 5XXX filler series) is the most critical consumable for high-strength aluminum joining. Magnesium atoms distort the aluminum lattice, significantly increasing yield strength without the need for heat treatment. Alloys like ER5356 (5% Mg) or ER5183 (4.8% Mg, High Mn) are designed for structural integrity. The metallurgy is tuned to provide high shear strength and excellent fatigue resistance, making it the primary choice for transportation, marine, and heavy-duty fabrication.

DB Certification CE Certification ABS Certification DNV Certification CCS Certification

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20+ Years Experience

Over two decades of aluminum alloy wire production expertise

International Certifications

DB, CE, ABS, DNV, CCS and other authoritative certifications

200MT Monthly Capacity

Large-scale production with consistent quality

Global Export

Exporting to over 30 countries worldwide

Joining with Integrity

Our company specializes in the science of the weld. We recognize that an Al-Mg weld is only as good as the purity of the wire. Our manufacturing process removes all trace hydrocarbons and moisture, the leading causes of porosity. We provide the global fabrication industry with wire that delivers consistent mechanical properties and a stable arc, ensuring that even the most complex 5XXX series structures meet the highest international safety standards for bridge, ship, and tank construction.

Al-Mg Wire Specs

ClassificationsER5356, ER5183, ER5554, ER5556
Mg Range2.2%−5.5%
Tensile (Weld)260−310 MPa
Elongation15%−25%
Shear Strength110−200 MPa

Welding Scenarios

  • Bridge Girders: Welding large-scale structural aluminum sections for pedestrian and vehicle bridges.

  • Dump Truck Bodies: High-impact welding of 5454 or 5083 plates for heavy transport.

  • Cryogenic Tanks: Joining 5083 plates for LNG storage where toughness at −196∘C is mandatory.

  • Solution: Eliminating "Hot Cracking" in high-Mg welds by optimizing Mn and Cr levels to refine the grain structure during solidification.

Professional FAQ

  • Q: When should I use ER5183 over ER5356?A: Use ER5183 when welding high-strength 5083 or 5456 alloys where you need to maximize the joint's tensile and shear strength.
  • Q: Can these be used above 65∘C?A: Be careful. Alloys with >3% Mg can be susceptible to Stress Corrosion Cracking at high temps. Use ER5554 for high-temperature service.

Performance Features

  • Highest Strength: Offers the highest as-welded tensile strength of any non-heat-treatable aluminum filler.

  • Excellent Ductility: Capable of significant plastic deformation before failure.

  • Anodizing Match: Provides a very good color match for most 5XXX and 6XXX base metals.

  • Work Hardening: Weld beads can be cold-worked to further increase surface hardness.

Selection Guide

For structural aluminum welding, ER5356 is the universal "go-to." For marine hulls, always specify ER5183 to match the strength of 5083 plates. For chemical trailers, use ER5554 for temperature stability.

About Us

Coming From China, Marketing To The World.

Hangzhou Kunli welding materials Co., Ltd. is China Aluminum-Magnesium Alloy Welding Wire Manufacturers and Wholesale Aluminum-Magnesium Alloy Welding Wire 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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