The PowerWeld LAN20040 .040″ x 7″ 2% lanthanated blue tungsten electrode is built for precise TIG welding on thin material where arc control matters. With its small .040″ diameter, this electrode is suited to low-amp work on sheet metal, light tubing, and fine detail welds. The EWLa-2 classification uses a 2% lanthanum blend that promotes easy arc starting, improved arc stability, and a significantly reduced tip erosion rate compared with pure tungsten. Welders can strike the arc with confidence, hold a steady puddle, and make more welds between trips to the grinder.
This 2% lanthanated tungsten runs well on both DC and AC inverter TIG machines, either polarity, making it a flexible choice for mixed-material shops. It performs on carbon steel, stainless steel, nickel alloys, titanium, and aluminum, so crews can move from thin stainless brackets to small aluminum parts without changing tungsten types. The standard 7″ (175 mm) length fits common TIG torches and tungsten grinders, and the blue color coding at the tip makes it easy to identify in a crowded torch rack or job box. Sold by the each, the LAN20040 lets you replace single electrodes as needed or order multiples to build a full set for your welding cart or tool room.
PowerWeld .040″ x 7″ 2% Lanthanated Blue Tungsten Electrode At a Glance
- EWLa-2 Lanthanated Tungsten: 2% lanthanum blend supports easy arc starts and steady TIG performance.
- .040″ Diameter: Ideal for low-amperage TIG welding on thin sheet, light tube, and delicate parts.
- 7″ (175 mm) Length: Standard length that fits most TIG torches and tungsten grinding fixtures.
- Blue Tip Color Coding: Quickly identifies 2% lanthanated tungsten in mixed electrode storage.
- AC and DC Operation: Works with alternating current or direct current, either polarity, including AC inverters.
- Reduced Tip Erosion: Chemistry is designed to slow tip wear and flattening for longer service life.
- Multi-Metal Capability: Suitable for carbon steel, stainless steel, nickel alloy, titanium, and aluminum.
- Sales Unit: Each – order (10) electrodes if you want to match a typical pack quantity.
Markets
- Light Welding and Fabrication Shops Used for TIG welding thin stainless and carbon steel sheet, brackets, and small parts.
- Precision and Instrument Repair Suited to detailed work on thin components where heat control is critical.
- Automotive and Motorsport Fabrication Helpful on light-gauge panels, tabs, and thin-wall tubing in TIG setups.
- Manufacturing and Industrial Maintenance Used on thin guards, covers, and small process components in mixed alloys.
- Aerospace and Specialty Metal Work Supports fine TIG welds on titanium and high-nickel alloy parts.
- Municipal and Facility Maintenance Practical for delicate TIG repairs on thin stainless, aluminum, and mixed material parts.
- Trade Schools and Welding Programs A good choice for teaching low-amperage TIG technique on thin material.
In fabrication shops, service bays, and training labs, the PowerWeld LAN20040 helps welders control heat on thinner material while still getting a stable arc. The .040″ diameter keeps the arc small and focused, which is important when welding thin stainless panels, small brackets, or precision components where distortion or burn-through can cause rework. Because this 2% lanthanated tungsten electrode operates on both AC and DC, crews can use the same tungsten on stainless and carbon steel one day and move to aluminum or titanium the next, simply by changing machine settings.
Maintenance teams and instructors also appreciate the reduced tip erosion that comes with EWLa-2 chemistry. With less rounding and wear at the point, welders can run more tacks and short beads before regrinding, which keeps work moving and reduces downtime at the grinder. For anyone who needs a small-diameter TIG welding tungsten that handles thin material and multiple alloys with confidence, the LAN20040 provides a practical, shop-ready solution.
PowerWeld LAN20040-EA .040″ x 7″ 2% Lanthanated Blue Tungsten Electrode (EWLa-2) Features
- Easy Arc Starting: Lanthanated blend supports quick, reliable arc ignition at low amperage.
- Improved Arc Stability: Helps maintain a smooth, calm arc for better puddle control on thin workpieces.
- Significantly Reduced Tip Erosion: Designed to extend point life and reduce the need for frequent regrinding.
- AC/DC Flexibility: Operates well with alternating current or direct current, either polarity, including AC inverters.
- Multi-Metal Performance: Performs on carbon steel, stainless steel, nickel alloy, titanium, and aluminum.
- Blue Identification Band: Standard color code for 2% lanthanated tungsten for easy selection in the shop.
PowerWeld LAN20040-EA .040″ x 7″ 2% Lanthanated Blue Tungsten Electrode (EWLa-2) Includes
- (1) .040″ x 7″ 2% Lanthanated Blue TIG Welding Tungsten Electrode (EWLa-2)
- Order (10) pieces for a full PowerWeld pack.
PowerWeld LAN20040-EA .040″ x 7″ 2% Lanthanated Blue Tungsten Electrode (EWLa-2) Specifications
- Brand: PowerWeld
- Model / MFG Part #: LAN20040
- Product Type: TIG Welding Tungsten Electrode
- Electrode Classification: EWLa-2 (2% Lanthanated)
- Diameter: .040″ (1.0 mm)
- Length: 7″ (175 mm)
- Composition: Approx. 97.3% Tungsten, 1.8%–2.2% Lanthanum, 0.5% Other
- Current Types: AC and DC, either polarity
- Recommended Power Sources: DC TIG welders and AC inverter TIG machines
- Recommended Materials: Carbon steel, stainless steel, nickel alloy, titanium, aluminum
- Sales Unit: Each
- Recommended Order Quantity: (10) Electrodes for full pack
- UPC: 7757092104000
Why Customers Choose the PowerWeld .040″ x 7″ 2% Lanthanated Blue Tungsten Electrode
TIG welders choose the PowerWeld LAN20040 when they need a .040″ tungsten that gives them strong control on thin material and works across multiple alloys. The EWLa-2 chemistry delivers easy arc starting and a steady arc cone on both DC and AC inverter TIG settings, so technicians can weld carbon steel, stainless, aluminum, and titanium without swapping electrode types. For light fabrication and precision repair, this makes setup simpler and keeps the focus on the work rather than changing consumables.
Another reason the LAN20040 is popular is its reduced tip erosion. The 2% lanthanated blend holds a point longer than pure tungsten, which means fewer grinding breaks and more consistent arc shape from weld to weld. In training rooms, students learn how a modern lanthanated TIG welding tungsten behaves at low amperage, while shops benefit from an electrode that supports clean, repeatable welds on thin parts. When precise, low-amp TIG work is part of the job, the PowerWeld LAN20040 is a dependable choice.
Please Note: Image may differ from the product listing. The image represents the correct electrode type, but the size shown may not match this .040″ x 7″ model. Always verify the description and specifications above before ordering to ensure you select the correct tungsten size.
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