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High-Strength Aluminum Alloy Wire for Structural Applications

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Product Description

Top-tier aluminum filler metals engineered to deliver the maximum possible tensile and yield strength in the welded joint, targeting critical structural components. The primary choice is ER5183 (for non-heat-treatable 5XXX base metals) or ER4943 (for heat-treatable 6XXX base metals with PWHT). These wires are characterized by high alloy content (Mg,Mn,Si) to promote solid solution or precipitation hardening in the weld deposit, ensuring the joint strength is optimized to withstand the highest static and dynamic loads mandated by structural engineering codes.

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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

Introduction

In structural engineering, high-strength aluminum is used where weight savings cannot compromise safety or performance. Our high-strength structural wires are the highest performing consumables available, minimizing the strength reduction in the weld area, which is the weakest link in any aluminum assembly. We enable the construction of lighter, yet stronger, structures in heavy construction, defense, and high-performance transportation by providing consumables certified to meet the minimum required tensile and yield strength values specified by AWS D1.2 and similar global structural codes.

Specification

Key PropertyMaximum Weld Tensile and Yield Strength
Alloy FocusER5183 (∼300 MPa UTS), ER4943 (Max strength with PWHT)
Base Metal Focus5083, 5456, 6061 (when PWHT is used)
Critical TestTransverse Tensile Test of the Welded Joint
Compliance CodeAWS D1.2 (Section 4 and Table 7.1)

Applications and Solutions

  • Bridge and Civil Engineering: Welding large aluminum plate and extrusions for load-bearing bridge decks and structural supports.

  • Defense and Armor: Fabrication of military vehicle hulls and components that require high-strength and impact resistance.

  • Aerospace Ground Support Equipment: Welding high-load structures such as large aerospace ground launch equipment and gantries.

  • High-Pressure Containment: Joining thick-walled pressure vessels and high-load storage tanks.

FAQ

  • Q: What is the limiting factor in high-strength aluminum welding?A: The softening of the Heat-Affected Zone (HAZ) in the base metal (6XXX and 7XXX series) is the primary factor limiting the overall joint strength, even if the filler metal deposit is strong.
  • Q: Is there a filler stronger than ER5183?A: For non-heat-treatable welds, ER5183 is the strongest common option. ER4943 is stronger, but only after a post-weld heat treatment (PWHT). Specialized Al-Sc fillers are stronger but extremely costly.
  • Q: Why is porosity control critical for high-strength structural welding?A: Porosity dramatically reduces the effective cross-sectional area and acts as stress concentrators, which is unacceptable for components designed to bear maximum loads and resist fatigue.

Advantages and Core Features**

  • Highest Attainable Strength: Fillers like ER5183 provide the best fusion zone strength achievable without heat treatment for 5XXX alloys.

  • Excellent Toughness: High Mg alloys ensure the weld deposit retains good fracture toughness and ductility under heavy load.

  • Fatigue Performance: Superior resistance to cyclic stress compared to lower-strength general-purpose fillers.

  • Code Compliance: Guarantees material composition and cleanliness meet the stringent requirements of structural welding codes for load-bearing elements.

Material Selection Guide

For high-strength structural applications, select ER5183 for non-heat-treatable 5XXX base metals. Select ER4943 for 6XXX base metals only if Post-Weld Heat Treatment (PWHT) is a planned part of the manufacturing process to recover maximum strength.

About Us

Coming From China, Marketing To The World.

Hangzhou Kunli welding materials Co., Ltd. is China High-Strength Aluminum Alloy Wire for Structural Applications Manufacturers and Wholesale High-Strength Aluminum Alloy Wire for Structural Applications 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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