ER4010 Aluminium Welding Wire | Aluminium-Silicon Filler Metal

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ER 4010 (AlSi7Mg)

ER 4010 (AlSi7Mg) Aluminium Welding Wire

Welding Consumables

ER 4010 (AlSi7Mg) Aluminium Welding Wire

Aluminium-silicon filler metal for MIG and TIG welding and repairing of aluminium alloyed with silicon

Chemical Designation: AlSi7Mg
Standard: AWS A5.10, GB/T10858-2023

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Chemical Composition (%)

Si	Fe	Cu	Mn	Mg	Zn	Ti	Al	Be	Others
									Each	Total
6.5-7.5	≤0.20	≤0.20	≤0.10	0.30-0.45	≤0.10	≤0.20	Rest	≤0.0003	≤0.05	≤0.15

Features

Designed for welding aluminium-silicon alloys, especially those requiring good strength, toughness, and fatigue resistance
Commonly used in high-speed rail systems for welding joints and fastening components
Delivers stable mechanical performance and durable welds in demanding transport applications

Available Sizes

Welding wire: 0.8/1.0/1.2/1.6/2.0/2.4/3.0/3.2/4.0/5.0/6.0mm
Spool: D300 (9kg), D270 (7kg), D200 (2kg), D100 (0.5kg)

Applications

Used in railway and high-speed rail systems for welding critical components such as rail joints and fastening assemblies
Suitable for joining and repairing aluminium structures that demand high strength, toughness, and fatigue resistance

Packaging

MIG wire diameter: 0.8mm, 1.0mm, 1.2mm, 1.6mm, 2.0mm
Package: D300 (9kg/spool), D270 (7kg/spool)

MIG wire diameter: 1.2mm, 1.6mm
Package: drum D660 (100kg/drum)

TIG wire diameter: 2.0mm, 2.4mm, 3.0mm, 3.2mm, 4.0mm, 5.0mm, 6.0mm
Package: 1000mm length (10kg/box)

TIG wire diameter: 1.6mm, 2.0mm, 2.4mm, 3.0mm, 3.2mm, 4.0mm
Coil inner diameter: D450mm, D300mm
Package: 10-17kg/coil

Recommended Welding Method

For best results, this welding wire should be used with MIG or TIG welding processes, ideally under AC current with pure argon shielding gas. Before starting, make sure the weld area is thoroughly cleaned and that both the workpiece and welding wire are completely dry and free from contaminants.

Why Choose Us

In-Depth Experience
1. We’ve specialized in aluminium and titanium welding wire for over 35 years.
2. Our manufacturing facility includes 6 processing workshops, over 60 production machines, and more than 50 production lines.
3. We’ve supplied products and services to over 5,000 clients in 15 countries.
Premium Quality
1. We are certified by ISO9001:2015 and GJB9001C-2017.
2. The welding wires we offer are approved by CE, DB (German Railway), CCS (China Classification Society), VdTÜV (Germany), and SGS.
3. A CNAS-accredited lab provides technical support and welding process evaluation.
On Time Delivery
1. Customized packaging option are available with delivery lead times between 3 to 15 days
2. We keep 280 tons of finished inventory and have an annual production capacity of 3,000 tons.
3. Our technical team offers free welding consultations, tailored solutions, and 24-hour after-sales service.