ER5356 Welding Wire
COREWELD 5356 ER5356 welding wire is an aluminium-magnesium filler metal for welding compatible aluminium alloys. A nominal magnesium content of 4.5 to 5.5 percent gives the deposited metal its strength and resistance to saltwater and atmospheric corrosion. Fabricators specify this filler metal for structural aluminium joints that must sustain repeated loads and long-term outdoor exposure. Industrial fabrication shops, transportation equipment builders, and marine welders use it on hulls, tanks, and frame assemblies made from 5xxx series aluminium. The AWS A5.10 classification gives buyers a documented reference for verification.
COREWELD 5356 Product Datasheet
The COREWELD 5356 datasheet lists the chemical composition limits, mechanical property ranges, available sizes, and packaging details for this filler metal. Download it below to review the full technical record before specifying this product for a welding procedure.
Understanding ER5356 Welding Wire
ER5356 specifies an aluminium-magnesium filler metal under the AWS A5.10 classification system. The designation determines the alloy family, the primary alloying element, and the composition band the wire must meet. This filler metal welds compatible aluminium-magnesium alloys, including 5xxx series grades such as 5052, 5083, 5086, and 5456, as well as certain 6xxx series alloys where procedure qualification supports the combination. Four factors determine suitability for a specific job: the base alloy, the service environment, the joint design, and the qualified welding procedure.
Technical Specifications of COREWELD 5356
The table below summarises the core technical identity of COREWELD 5356. Confirm exact diameters, lengths, and packaging against the current datasheet before placing an order.
| Parameter | Details |
| Brand | COREWELD 5356 |
| Product Name | ER5356 Welding Wire |
| AWS Classification | ER5356 |
| Material Type | Aluminium Magnesium Filler Metal |
| Main Alloying Element | Magnesium |
| Welding Processes | MIG (GMAW) and TIG (GTAW), subject to product form |
| Applicable Standard | AWS A5.10 / ASME SFA 5.10, subject to certification |
| Available Wire Diameters | 0.8 mm, 1.0 mm, 1.2 mm, 1.6 mm |
| Rod Lengths | 1000 mm (for TIG rods) |
| Packaging | Spools (D100, D200, S300), 0.5 kg to 7 kg packs |
| Base Material Compatibility | 5050, 5052, 5083, 5086, 5454, and 5456 series, subject to procedure qualification |
Chemical Composition and Mechanical Properties of ER5356
Chemical composition forms the corrosion resistance and crack resistance of a weld, while mechanical properties determine how that weld carries load in service. The tables below reflect the AWS A5.10 specification limits for the ER5356 classification; consider these as classification limits, not a guaranteed analysis for every COREWELD 5356 lot, and request the batch certificate for confirmed results. Actual weld metal values shift with the base alloy, the welding procedure, and the joint design.
Chemical Composition of ER5356
| Element | Composition |
| Magnesium (Mg) | 4.5 to 5.5 percent |
| Manganese (Mn) | 0.05 to 0.20 percent |
| Chromium (Cr) | 0.05 to 0.20 percent |
| Silicon (Si) | 0.25 percent maximum |
| Iron (Fe) | 0.40 percent maximum |
| Copper (Cu) | 0.10 percent maximum |
| Zinc (Zn) | 0.10 percent maximum |
| Aluminium (Al) | Remainder |
Mechanical Properties of ER5356 Weld Metal
| Property | Value |
| Tensile Strength | 240 MPa (35,000 psi) minimum / typical; reported as-welded range 200–310 MPa (29–45 ksi) |
| Yield Strength | Typ. 120 MPa (17,400 psi); reported as-welded range 83–207 MPa (12–30 ksi) |
| Elongation | Typ. 17–18% in 50 mm / 2 in; reported as-welded range 10–18% |
| Hardness | Typ. approx. 75 HB (Brinell) |
ER5356 Welding Wire vs. ER5356 Filler Rod
ER5356 welding wire and ER5356 filler rod share the same chemical classification but differ in form and handling. MIG welding draws the ER5356 welding wire continuously off a spool, through the gun liner, at a set wire feed speed. TIG welding uses the ER5356 welding rod differently: the welder holds a straight length and manually feeds the ER5356 filler rod into the weld pool, matching the torch travel speed. Continuous feed suits higher deposition rates on long structural runs, while manual feed provides direct control over heat input, which benefits thin sheet and precision joints. MIG wire needs a feeder and spool gun; a TIG rod needs only a rod holder and a steady hand.
ER5356 Welding Wire Applications
- Aluminium boat hulls and marine structural fabrication
- Road and rail transportation equipment, including tank bodies and trailer frames
- Storage tanks and pressure vessels constructed of 5xxx series aluminium
- Structural fabrication for bridges, platforms, and support frames
- Cryogenic and low-temperature equipment using 5xxx base alloys
- General aluminium fabrication requiring a magnesium-based filler metal
Manufacturing Process of ER5356 Welding Wire
- Material Selection: sourcing aluminium and magnesium input stock meeting AWS A5.10 limits
- Alloying and Melting: melting the charge and adjusting magnesium, manganese, and chromium to target
- Forming Processes: extruding and drawing the alloy down to the finished wire or rod diameter
- Composite Filler Metal Production: spooling, straightening, and cutting into coils and rod lengths
Key Benefits of COREWELD 5356 Filler Metal
The magnesium-based composition gives COREWELD 5356 its resistance to saltwater and atmospheric corrosion, supporting marine and coastal fabrication work. The 4.5 to 5.5 percent magnesium band also contributes to weld strength on compatible 5xxx series alloys without the crack sensitivity seen on some heat-treatable grades. Good arc stability on MIG and TIG processes gives a consistent bead profile across varying plate thicknesses. These benefits apply to the alloys and conditions covered by the AWS A5.10 classification and the COREWELD 5356 datasheet, not to every aluminium alloy or operating temperature.
Why Choose COREWELD 5356 Welding Wire?
COREWELD 5356 carries a documented AWS A5.10 classification, which gives buyers a verifiable reference for composition and mechanical property limits ahead of procurement. Confirmed diameters, rod lengths and packaging options appear on the official datasheet, along with technical guidance where confirmed by COREWELD. Review the datasheet before specifying this filler metal, and compare the listed composition limits against the base alloy and service environment for the job.
ER5356 Welding Wire Supply and Technical Support
COREWELD 5356 is available as welding wire for MIG processes and filler rod for TIG work, in diameters and packaging confirmed on the official datasheet. Bulk orders and technical assistance are available on enquiry. When requesting product information, provide the base alloy being welded, the welding process in use, and the required dimensions so the response matches the application.
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Frequently Asked Questions About ER5356 Welding Wire
What is ER5356 welding wire used for?
It welds compatible aluminium magnesium alloys from the 5xxx series in marine, transportation, and structural fabrication work.
What is the difference between ER5356 welding wire and filler rod?
Welding wire feeds continuously through a MIG gun from a spool. Filler rod is a straight length fed manually into the TIG weld pool.
Which aluminium alloys are compatible with ER5356 filler metal?
It suits several 5xxx series alloys, including 5052, 5083, 5086, and 5456, subject to procedure qualification.
What sizes are available for COREWELD 5356 welding wire?
Available diameters and rod lengths appear on the official datasheet. Confirm exact sizes with COREWELD before ordering.
Is ER5356 suitable for marine applications?
Yes, its magnesium-based composition resists saltwater corrosion, supporting marine hull and structural welding.
Which standard applies to ER5356 welding wire?
It follows the AWS A5.10 / ASME SFA 5.10 specification for bare aluminium and aluminium alloy welding electrodes and rods.