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Structural Frame Aluminum Alloy Wire

-- Steady & Reliable Manufacturer --

Product Description

Aluminum filler metals designated for joining load-bearing structural frameworks where yield strength, tensile strength, and fatigue resistance are the primary design criteria. Common alloys include ER5356, ER5183, and the heat-treatable ER4943. These wires are chosen not only for their high-strength deposit but also for their metallurgical ability to minimize porosity and fusion defects, ensuring that the resulting joint can safely transmit large dynamic and static loads through the structural member, often meeting strict codes like AWS D1.2.

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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

The integrity of structural aluminum frames, whether in buildings, transportation, or specialized machinery, depends entirely on the quality and strength of the welded joints. Our structural wire portfolio ensures that the filler metal contributes maximum strength and ductility to the joint, counteracting the strength loss that naturally occurs in the heat-affected zone (HAZ) of heat-treatable base metals like 6061. We provide the reliability needed to meet engineering safety factors and compliance standards for structural welding projects across heavy construction and civil engineering.

Specification

Key PropertyHigh Tensile and Yield Strength in the Weld Deposit
Alloy FocusER5356 (General), ER5183 (High Strength), ER4943 (Heat-Treatable)
Base Metal CompatibilityOptimized for 6XXX and high-strength 5XXX alloys
Compliance StandardAWS D1.2 (Structural Welding Code—Aluminum)
Testing FocusTransverse Weld Tensile Testing, Fatigue Testing

Applications and Solutions

  • Architectural and Civil Structures: Welding load-bearing frames, columns, and trusses for buildings and canopies.

  • Vehicle Chassis and Subframes: Fabrication of aluminum undercarriage structures for heavy trucks, buses, and rail cars.

  • Bridge and Pedestrian Walkways: Welding large aluminum extrusions and plate in lightweight infrastructure projects.

  • Crane and Boom Manufacturing: Joining structural tubular members exposed to high cyclic bending loads.

FAQ

  • Q: What is the strongest aluminum filler for general structural work?A: ER5183 generally provides the highest strength deposit among the non-heat-treatable fillers and is commonly used with high-strength base metals like 5083 or 5456. ER4943 can achieve high strength when post-weld heat treatment is applied.
  • Q: How do I calculate the strength of a 6061-T6 weld joint?A: Due to HAZ softening, the design strength is governed by the softest part of the joint, often using the allowable stresses defined in structural codes like AWS D1.2, which are significantly lower than the base metal's original strength.
  • Q: Why is porosity control important for structural welds?A: Porosity acts as a stress riser, drastically reducing the effective cross-sectional area and accelerating the initiation of fatigue cracks under cyclic loading, leading to premature structural failure.

Advantages and Core Features

  • High Strength-to-Weight Ratio: Weld deposits maximize strength while maintaining the lightweight advantage of aluminum base metals.

  • Excellent Fatigue Resistance: Alloys like ER5183 offer superior fatigue performance, critical for structures under repeated stress cycles.

  • AWS D1.2 Compliant: Fillers meet the strict chemical and physical requirements necessary for structural code acceptance.

  • Reduced Cracking: Optimized compositions minimize the risk of solidification cracking in heavily restrained joints common in structural frames.

Material Selection Guide

For structural frames, prioritize strength and code compliance. For 6061 and low-stress 5XXX frames, ER5356 is adequate. For high-stress 5XXX frames (like 5083), specify **ER5183}$. If post-weld heat treatment is possible, ER4943 offers the potential for the highest final strength.

About Us

Coming From China, Marketing To The World.

Hangzhou Kunli welding materials Co., Ltd. is China Structural Frame Aluminum Alloy Wire Manufacturers and Wholesale Structural Frame Aluminum Alloy 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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