Web Menu

Product Search

Language

Share

OEM/ODM Special Al Alloy Welding Wire Manufacturers

Home / Products / Aluminum Welding Wire / Special Al Alloy Welding Wire
Special Al Alloy Welding Wire
  • Special Al Alloy Welding Wire
  • Special Al Alloy Welding Wire
  • Special Al Alloy Welding Wire
  • Special Al Alloy Welding Wire
Aluminum Welding Wire

Special Al Alloy Welding Wire

This special Al alloy filler metal, containing Sc and Magnesium, provides high strength, great seawater corrosion resistance, and a uniformly distributed fine cubic crystal structure. It is recommended for welding parts in the 5000, 6000, and 7000 series, with commonly used grades such as Aluminum Welding Wire ER4943, especially suitable for Al-Mg-Sc and Al-Zn-Mg-Sc alloys. The material is widely applied in aerospace, military, rail transit, and automobile industries.

E-mail: rich@chinayinyu.com
Contact Us
AWS A5.10 | ISO 18273

Special Al Alloy Welding Wire

0.8-1.6mmDiameter Range
5xxx/6xxx/7xxxMatching Series
100% ArShielding Gas

Product Description

The Special Al Alloy Welding Wire is a precision-engineered filler metal designed for high-performance gas metal arc welding (GMAW) and gas tungsten arc welding (GTAW) applications. This wire is formulated with a specific chemical composition, typically incorporating magnesium, manganese, or silicon elements to match the mechanical requirements of 5xxx, 6xxx, and 7xxx series aluminum base metals. During the manufacturing process, the wire undergoes shaved surface treatment and rigorous cleaning to eliminate hydrocarbons and surface oxides, ensuring arc stability and reducing the risk of porosity in the weld pool. The consistent diameter control and specialized spooling techniques allow for smooth feeding in automated and robotic welding systems, maintaining a stable deposition rate even in complex joint geometries.

Core Technical Advantages

Weld Integrity
The alloy composition is balanced to minimize solidification cracking and enhance the tensile strength of the heat-affected zone (HAZ).
Feedability
High-precision surface finishing reduces friction within the liner and contact tip, preventing wire bird-nesting and contact tip wear.
Metallurgical Purity
Low levels of trace elements and controlled hydrogen content contribute to X-ray quality welds and structural reliability.
Corrosion Resistance
Specifically designed to maintain the corrosion-resistant properties of the aluminum parent material in marine and chemical environments.

Product Characteristics

Technical Parameter Specification / Feature
Material Base Aluminum Alloy (Al-Mg, Al-Si, or Al-Mg-Mn types)
Wire Diameter 0.8mm, 1.0mm, 1.2mm, 1.6mm (Available in standard spools)
Surface Condition Shaved and chemically cleaned for ultra-low oxide levels
Shielding Gas 100% Argon or Argon/Helium mixtures
Compliance AWS A5.10 / ISO 18273 standards

Application Scenarios

01Aerospace & DefenseFuel tanks, structural frames, lightweight components
02Automotive ManufacturingAluminum body panels, chassis, EV battery housings
03Marine EngineeringShip hulls, offshore platforms, saltwater pressure vessels
04Railway TransportHigh-speed train bodies, aluminum freight containers

Storage and Operational Requirements

Storage Conditions: Maintain the welding wire in a dry, temperature-controlled environment. Relative humidity should be kept below 60% to prevent the formation of hydrated oxides on the wire surface.
Temperature Equilibrium: Before opening the vacuum-sealed packaging, allow the wire to reach the ambient temperature of the welding shop for at least 24 hours to prevent moisture condensation.
Handling Precautions: Operators must use clean, oil-free gloves when handling the wire to prevent surface contamination, which is a primary cause of weld porosity.
Equipment Setup: Utilize U-groove drive rolls and Teflon liners specifically designed for aluminum to avoid wire deformation and surface scraping during the feeding process.

  • CHEMICAL COMPOSITION（wt）/%

    Si

    Fe

    Cu

    Mn

    Mg

    Cr

    Zn

    Sc

    Ti

    Zr

    other

    Al

    single

    total

    ≤0.25

    ≤0.4

    0.05

    0.1~1.0

    4.0~6.0

    0.05~0.25

    ≤0.1

    0.1~0.5

    0.05~0.15

    0.1~0.2

    ≤0.05

    ≤0.15

    Rem.
    Size and Packet
    Class  Typical Diameter/mm Reference Packet/Kg
    MIG

    0.8, 0.9, 1.0, 1.2, 1.6, 2.4

    0.5, 2, 5, 6, 7, 9
    TIG

    1.6, 2.0, 2.4, 3.0, 3.2, 4.0, 5.0/1000

    5, 10, 20
    DRUM

    0.8, 0.9, 1.0, 1.2, 1.6

    		 40, 80
    COIL

    2.4, 3.0, 3.2, 4.0

    		 8-15
PREV：Aluminum Alloy Wire for 3d Printing
NEXT：ER2319 Aluminum Welding Wire

Special Al Alloy Welding Wire

Coming From China，
Marketing To The World.

Hangzhou Kunli welding materials Co., Ltd. is located in the industrial zone of Puyang Town, Xiaoshan District, Hangzhou, Zhejiang Province. It is a high-technology and high-performance China Aluminum Welding Wire Manufacturers and wholesale Aluminum Welding Wire ER4943 factory. The company has more than 20 years of aluminum alloy wire production experience, with international advanced aluminum alloy welding wire manufacturing equipment, complete testing equipment, stable production process and strict quality control system. The high-performance OEM/ODM Special Al Alloy Welding Wire produced by the company has successfully passed a number of international authoritative certification, such as DB, CE, ABS, DNV, CCS, etc. We have more than 200MT production capacity per month and 50% was exported to over 30 countries such as USA, Mexico, Southeast Asia, Japan, Korea, Australia, New Zealand and etc.

  • 30+

    USED IN HEAVY INDUSTRY TECHNOLOGY SECTOR

  • 35

    YEARS OF RESEARCH AND DEVELOPMENT EXPERIENCE

  • 200+

    COOPERATIVE LARGE-SCALE R & D INSTITUTIONS

  • 20+

    GLOBAL TRADE COUNTRIES AND REGIONS

Coming From China,
Marketing To The World.

More than 90% of our field operators have professional and technical education background, and have many years of experience in equipment processing and assembly. It is precisely because of this united, dedicated, pioneering, skilled and experienced team that the company's technology and products can be continuously updated and improved.

Honor

GET IN TOUCH

Send Us a Message?

Related Products

::: Last News :::

Industry Information Extension

Special Al Alloy Welding Wire – Engineered for Critical Aluminum Structures

As a Special Al Alloy Welding Wire.html manufacturer, we match product configuration to the application, operating limits, interfaces and acceptance criteria defined for each project.

As a specialized Special Al Alloy Welding Wire manufacturer, Hangzhou Kunli Welding Materials Co., Ltd. produces high-performance filler metals designed for demanding applications in aerospace, automotive, marine, and rail industries. Our wire is formulated with scandium and magnesium to deliver exceptional strength, seawater corrosion resistance, and a fine, uniform cubic crystal structure that enhances weld integrity.

We supply this wire in MIG, TIG, drum, and coil formats, with diameters from 0.8 mm to 5.0 mm, and we support OEM/ODM customization to meet your specific joint requirements. With over 20 years of production experience and monthly capacity exceeding 200 MT, we are a reliable partner for global manufacturers.

Product Range and Applications

Our Special Al Alloy Welding Wire is available in several grades, each tailored to match specific base metal series and service conditions. The table below outlines the common grades and their primary applications:

Grade Base Metal Series Key Features Typical Applications
ER4943 5xxx, 6xxx, 7xxx High strength, crack resistance Automotive, rail, aerospace
ER5183 5xxx Excellent corrosion resistance Marine, pressure vessels
ER5356 5xxx Good strength and ductility General fabrication, automotive
ER5554 5xxx High strength, low temperature toughness Cryogenic tanks, structural
ER5556 5xxx Higher strength than 5356 Armor plate, heavy fabrication

For more details on specific grades, explore our Aluminum Welding Wire range, including ER4043 Silicon Aluminum Welding Wire and ER5356 Aluminum Welding Wire.

Critical Specifications and Quality Control

Our wire is manufactured to AWS A5.10 and ISO 18273 standards, ensuring consistent chemical composition and mechanical properties. The typical composition includes silicon ≤0.25%, iron ≤0.4%, copper 0.05%, manganese 0.1–1.0%, magnesium 4.0–6.0%, chromium 0.05–0.25%, zinc ≤0.1%, scandium 0.1–0.5%, titanium 0.05–0.15%, zirconium 0.1–0.2%, with balance aluminum.

We perform rigorous testing in our in-house lab, using advanced equipment such as SHIMADZU PDA-5500 optical emission spectrograph, LEICA DM2550 metallographic microscope, and OTC welding robot for weldability assessment. Each batch is verified for chemical composition, mechanical properties, and surface quality before shipment.

Surface Treatment and Feedability

To ensure stable arc and minimal porosity, our wire undergoes shaved surface treatment and chemical cleaning to remove oxides and hydrocarbons. This results in ultra-low surface contamination, which is critical for X-ray quality welds. The precise diameter control and specialized spooling techniques prevent bird-nesting and ensure smooth feeding in automated and robotic systems.

Packaging and Delivery Options

Packaging Type Available Diameters (mm) Standard Weights (kg)
MIG Spool 0.8, 0.9, 1.0, 1.2, 1.6, 2.4 0.5, 2, 5, 6, 7, 9
TIG Rod 1.6, 2.0, 2.4, 3.0, 3.2, 4.0, 5.0 5, 10, 20
Drum 0.8, 0.9, 1.0, 1.2, 1.6 40, 80
Coil 2.4, 3.0, 3.2, 4.0 8–15

We ship globally via Ningbo or Shanghai ports, with vacuum-sealed packaging to prevent moisture absorption. For urgent orders, air freight is available.

Installation and Operational Guidance

Proper handling is essential to maintain wire quality. Store in a dry environment with relative humidity below 60%. Before use, allow the wire to reach shop temperature for at least 24 hours to avoid condensation. Use clean, oil-free gloves and Teflon liners with U-groove drive rolls to prevent surface damage.

For optimal results, use 100% argon or argon/helium mixtures as shielding gas. Pulsed MIG or CMT processes can further reduce porosity, especially in 5xxx and 6xxx series applications.

Information We Use to Configure Your Solution

To prepare an accurate quotation and configuration, please provide the following details:

  • Base metal alloy and thickness
  • Welding process (MIG, TIG, or automated)
  • Required diameter and packaging type
  • Production volume and delivery schedule
  • Applicable standards or customer specifications

Frequently Asked Questions

What makes this wire different from standard aluminum filler?

Our Special Al Alloy Welding Wire contains scandium and magnesium, which refine the grain structure and significantly improve strength and corrosion resistance compared to conventional alloys like 4043 or 5356. This makes it ideal for high-performance applications where weld integrity is critical.

Can you customize the wire diameter or packaging?

Yes, we offer OEM/ODM services. We can produce custom diameters, spool sizes, and even develop new alloys based on your drawings or samples. Our R&D team works closely with you to meet specific requirements.

What certifications do you hold?

Our production system is ISO9001, ISO14001, and ISO18001 certified. Our welding wire has also received DB, CE, ABS, DNV, and CCS certifications, ensuring compliance with international marine and industrial standards.

How do you ensure consistent quality across batches?

We use advanced testing equipment and a strict quality control system. Each batch is tested for chemical composition, mechanical properties, and weldability. Our lab is equipped with spectrographs, microscopes, and welding robots to simulate real conditions.

What is your typical lead time?

Lead time depends on order quantity and customization. For standard products, we typically ship within 2–3 weeks after deposit. For custom alloys, please contact us for a specific timeline.