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Special Aluminum Alloy Welding Wire

-- Steady & Reliable Manufacturer --

Intro

Bespoke and specialized aluminum filler metal compositions (e.g., Al-Li, Al-Sc, high-Magnesium variants) for joining uncommon or high-tech base metals in critical R&D and advanced manufacturing.

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

Introduction

This tag addresses the market need for filler metals that go beyond the common ER4043 and ER5356. We utilize our R&D partnership network (including Central South University) to produce wires with customized or proprietary compositions—such as those used for welding Al-Lithium (Al-Li) in launch vehicles or Al-Scandium (Al-Sc) for grain refinement. These alloys require meticulous control over trace elements and specialized production runs, offering unique properties like enhanced strength, fracture toughness, or thermal performance in the weld deposit.

Specification

Alloy FocusER2319, ER4943, ER5087, and proprietary compositions
ManufacturingSmall batch, dedicated production runs with strict Q.C.
Key PropertyHigh strength, Toughness, Heat-treatable capability
ComplianceCustom MTCs provided with detailed chemical analysis
R&D LinkBacked by university-level metallurgical expertise

Applications

  • Welding next-generation Al-Li and Al-Sc alloys in aerospace and defense applications.

  • Joining dissimilar aluminum alloys where standard fillers fail to match properties.

  • R&D and prototyping for automotive or railcar structures using advanced, non-standard base materials.

  • High-performance applications requiring specific mechanical properties post-weld heat treatment.

Payment and Shipping

  • Minimum Order: Higher MOQs and potentially longer lead times due to dedicated production scheduling for non-standard alloys.

  • Contract Structure: Negotiated contracts for long-term R&D supply and future scale-up manufacturing.

  • Documentation: Provision of comprehensive, non-standard documentation detailing the unique metallurgical characteristics.

Advantages

  • Custom Property Matching: Wires are formulated to achieve a specific strength or toughness that standard fillers cannot deliver, maximizing the potential of the base material.

  • Technical Partnership: Direct access to R&D experts for collaborative material selection and process optimization.

  • Hot Cracking Mitigation: Specialized compositions are designed to overcome cracking issues often associated with non-standard or high-strength base alloys.

  • Competitive Edge: Provides materials necessary for clients working on cutting-edge, technologically demanding projects.

FAQ

  • Q: Can you develop a filler metal for welding 7075 aluminum?
  • A: While 7075 is generally considered poor for fusion welding, we can supply specialized, high-zinc filler metals (e.g., based on Al-Zn-Mg) or alternative wire forms (e.g., Al-Li) to address crack sensitivity and maximize post-weld strength, often requiring strict heat treatment.
  • Q: What is the benefit of adding Scandium to a filler metal?
  • A: Scandium (Sc) acts as a powerful grain refiner, significantly improving the strength and reducing the grain size in the weld fusion zone, which is vital for fatigue resistance in critical applications.

About Us

Coming From China, Marketing To The World.

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