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Railway Car Aluminum Welding Wire

-- Steady & Reliable Manufacturer --

Intro

High-strength aluminum welding solutions developed for the dynamic stress and vibration requirements of railway rolling stock and transportation infrastructure.

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Introduction

The fabrication of modern railway cars requires filler metals that offer a combination of high tensile strength, fatigue resistance, and smooth weld bead aesthetics. Our dedicated wire formulations, including specific high-Magnesium alloys, are engineered to meet the stringent safety and longevity standards of the rail industry. These wires ensure consistent mechanical properties across complex, long-run welds typical in train carriage assembly, contributing to reduced weight and increased energy efficiency in transportation systems.

Specification

Classification (AWS)ER5087 / ER5356
CRRC StandardQualified Supplier Status
Base Metal Compatibility6000 and 7000 series aluminum alloys (Heat-treatable)
Shear Strength (Typical)180 MPa - 210 MPa
Supply FormLayer-wound spools for robotic and automated welding

Applications

  • Assembly of aluminum body shells and structural components for high-speed trains (e.g., CRRC projects).

  • Fabrication of passenger train interiors and luggage racks.

  • Welding of freight rail wagons and bulk transportation containers.

  • Repair and maintenance of rail infrastructure and sub-assemblies.

FAQ

  • Q: Why are 5XXX series wires often preferred over 4XXX for railway car body construction?
  • A: 5XXX series wires, like ER5087 and ER5356, offer significantly higher as-welded tensile and yield strength and better resistance to stress corrosion cracking, which are critical for load-bearing rail structures.
  • Q: Can your wires be used for laser-hybrid welding processes often found in rail manufacturing?
  • A: Yes, the precision drawing and cleaning of our wires ensure they meet the stringent tolerances and surface quality required for stable performance in high-efficiency laser-hybrid welding.

Advantages

  • Fatigue Resistance: Welds maintain strength under the cyclic loading and vibration inherent to rail operations, prolonging structural service life.

  • Controlled Feedability: Advanced drawing and cleaning processes ensure consistent wire surface quality, crucial for reliable feeding in automated welding processes.

  • Strength Retention: Maintains high mechanical properties in the as-welded condition and after potential post-weld heat treatments (where applicable).

  • Proven Track Record: Successful replacement of previously imported materials and supply to major rail manufacturers.

Payment and Shipping

  • Inventory Management: Ability to hold buffer stock for large, recurring orders to ensure JIT (Just-In-Time) delivery to production lines.

  • Custom Packaging: Option for bulk-packed drums or specialized spools to integrate directly with high-volume robotic welding systems.

  • Documentation: Full material traceability and Mill Test Certificates (MTCs) provided with every shipment.

About Us

Coming From China, Marketing To The World.

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