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OEM/ODM ER2319 Aluminum Welding Wire Manufacturers

Home / Products / Aluminum Welding Wire / ER2319 Aluminum Welding Wire
ER2319 Aluminum Welding Wire
  • ER2319 Aluminum Welding Wire
  • ER2319 Aluminum Welding Wire
  • ER2319 Aluminum Welding Wire
  • ER2319 Aluminum Welding Wire
Aluminum Welding Wire

ER2319 Aluminum Welding Wire

2319 is about 6% Copper Aluminum filler metal which has high strength, excellent seawater corrosion resistance, better bending property and high fracture toughness, recommended for welding the construction of parts of 2xxx series; mainly apply to the air and spacecraft industries.

E-mail: rich@chinayinyu.com
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Aerospace Grade Heat Treatable

Technical Specifications and Application Guidelines for ER2319 Aluminum Welding Wire

Al-Cu Series | High-Strength Structural Alloy
“

The ER2319 Aluminum Welding Wire is a high-performance filler metal alloyed with copper, specifically engineered for the Gas Metal Arc Welding (GMAW) and Gas Tungsten Arc Welding (GTAW) of high-strength 2219 series aluminum alloys. This material is characterized by its ability to provide high tensile strength and thermal stability at elevated temperatures, making it a critical component in aerospace and defense manufacturing. The precision-drawn wire undergoes a rigorous cleaning process to remove surface oxides and lubricants, ensuring a stable arc and minimizing porosity in the weld bead. ER2319 is frequently utilized in applications requiring post-weld heat treatment, as it responds effectively to thermal aging processes to restore mechanical properties in the heat-affected zone.

◆
Core Technical Advantages
1
Thermal Performance
Maintains structural integrity and mechanical properties during service in high-temperature environments.
2
Stress Corrosion Resistance
The copper-alloyed chemistry provides resistance to stress corrosion cracking in critical structural joints.
3
Heat Treatability
Allows for post-weld solution heat treatment and aging to achieve specified strength levels in the welded assembly.
4
Consistent Feedability
Controlled wire diameter and surface finish reduce friction in welding liners and contact tips.
technical data
Product Characteristics
Chemical Composition
Al-Cu Series (Copper 5.8% - 6.8%)
Melting Range
543°C - 643°C (1010°F - 1190°F)
Density
2.84 g/cm³
Standard Compliance
AWS A5.10 / ASME SFA 5.10 ER2319
Available Diameters
0.8mm, 1.2mm, 1.6mm, 2.4mm, 3.2mm
Primary Application Scenarios
A
Aerospace Engineering
Fabrication of fuel tanks for launch vehicles and high-strength structural components for aircraft.
D
Defense Industry
Construction of armored vehicle plating and specialized military hardware requiring 2219 aluminum alloy integration.
C
Cryogenic Vessels
Used in the production of storage tanks for liquefied gases due to its performance in extreme temperature fluctuations.
H
High-Temperature Piping
Industrial fluid transport systems where operating temperatures exceed standard aluminum alloy limits.
⏚
Storage Requirements
Aluminum welding wire is highly susceptible to moisture absorption and oxidation. It must be stored in a dry environment with a relative humidity below 60%. It is recommended to maintain the wire in its original moisture-proof packaging until usage. If the wire is exposed to the atmosphere for extended periods, it should be stored in a heated cabinet to prevent hydrogen-induced porosity during the welding process.
Usage Precautions
► Surface Preparation: Ensure the base metal is thoroughly cleaned with a stainless steel wire brush or chemical etchant to remove the oxide layer prior to welding.
► Shielding Gas: Use 100% Argon or an Argon/Helium mixture to provide adequate protection for the molten weld pool.
► Interpass Temperature: Monitor and control interpass temperatures to avoid over-aging of the base metal and to ensure the desired microstructure of the weldment.
Engineering data based on AWS A5.10 standard. Actual weld results depend on specific procedures and base material condition.

  • GB/T 10858

    S Al 2319

    DIN EN ISO 18273

    S Al 2319 (AlCu6MnZrTi)

    AWS/ASME SFA-5.10

    ER 2319,R2319

    CHEMICAL COMPOSITION（wt）/%

    Si

    Fe

    Cu

    Mn

    Mg

    V

    Zr

    Zn

    Ti

    Be

    other

    Al

    single

    total

    ≤0.20

    ≤0.3

    5.8~6.8

    0.2~0.4

    ≤0.02

    0.05-0.15

    0.1-0.25

    ≤0.1

    0.1-0.2

    ≤0.0003

    ≤0.1

    ≤0.15

    Rem.

    TYPICAL CHARACTERISTICS
    melting range

    1075 - 1180°F
    density

    2.66g/mm3
    corrosion resistance

    D(Gen) C(SCC)

    Color after electrode oxidization

    GOLDEN

    The mechanical properties of typical welded joint 

    Starting Sheet

    Starting Sheet Performance

    Joint Performance

    Rm (MPa)

    RP0.2 (MPa)

    A/%

    Rm (MPa)

    RP0.2 (MPa)

    		 A/%

    2014-T6

    		 482

    413

    13

    		 296

    193

    		 5

    2219-T81

    		 455 351 10 241 179 3

    2219-T87

    		 496 441 10 255 179 4
    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
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ER2319 Aluminum 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 ER2319 Aluminum Welding Wire 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 ER2319 Aluminum 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

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Industry Information Extension

Why ER2319 is the Top Choice for Aluminum Tank and Pressure Vessel Welding?

When it comes to welding aluminum tanks and pressure vessels, selecting the right filler wire is crucial for ensuring structural integrity, corrosion resistance, and long-term performance. ER2319 aluminum welding wire has emerged as a top choice in industries requiring high-strength, crack-resistant welds, particularly in aerospace-grade aluminum alloys and cryogenic storage applications.

Key Advantages of ER2319 for Tanks & Pressure Vessels

1. Superior Strength & Crack Resistance
ER2319 is specifically designed for welding 2219 aluminum alloy, which is widely used in high-pressure tanks, LNG storage, and rocket fuel containers. Unlike ER4043 or ER5356, which are softer, ER2319 filler wire provides higher tensile strength (up to 310 MPa) and better resistance to hot cracking—a common issue in thick aluminum welds.

2. Excellent Performance in Cryogenic Conditions
For low-temperature applications (e.g., liquid nitrogen tanks, space launch systems), ER2319 maintains superior ductility and toughness, even at -250°C (-418°F). This makes it ideal for cryogenic pressure vessels where thermal stress resistance is critical.

3. Optimized for TIG & MIG Welding Processes
Whether using TIG (GTAW) or MIG (GMAW) welding, ER2319 delivers consistent arc stability and low porosity. Its copper (Cu) content (5.8-6.8%) enhances weld fluidity, reducing the risk of lack of fusion defects—especially in thick aluminum plate welding (10mm+).

4. Corrosion Resistance in Harsh Environments
While ER5356 filler wire is more common for marine applications, ER2319 offers better stress corrosion cracking (SCC) resistance in chemical storage tanks and high-pressure gas cylinders. Post-weld heat treatment (PWHT) can further enhance its corrosion performance.

ER2319 vs. Other Aluminum Filler Wires: Key Parameters

Parameter ER2319 ER4043 ER5356
Base Alloy 2219 Aluminum 6061, 3003 5052, 5083
Tensile Strength 310 MPa 186 MPa 290 MPa
Cu Content 5.8-6.8% ≤0.3% ≤0.1%
Best For High-strength tanks General-purpose Marine applications
Cryogenic Use Excellent Poor Moderate