The Lincoln Electric KP2744-364AT5356 is a specialized contact tip engineered for the rigorous demands of industrial aluminum welding. Part of the renowned Magnum® PRO expendables line, this contact tip is designed to address the specific challenges associated with feeding and welding 5356 aluminum wire. Aluminum welding requires precise electrical contact and smooth feeding to prevent micro-arcing and burnback, issues that can halt production and damage equipment. This tip features a 3/64-inch (1.2 mm) bore specifically calibrated for 5356 alloy, which behaves differently under thermal stress compared to softer 4043 alloys or steel wires.
At the core of this product is Lincoln's proprietary Copper Plus® technology. Unlike standard copper tips that soften and degrade rapidly under high heat, Copper Plus® utilizes a specialized alloy with a larger mass diameter. This design significantly improves heat dissipation, keeping the tip cooler even during extended high-amperage welds (rated up to 350A). A cooler tip maintains its hardness and bore geometry longer, resisting the "keyholing" effect that leads to erratic arcs and poor weld quality. For industrial fabricators, this translates to fewer tip changes, reduced downtime, and more consistent arc starts.
The "AT" in the SKU designates this as an Aluminum Tapered tip. The tapered profile is essential for welders working on complex assemblies where joint access is restricted. It provides a narrower front end without sacrificing the thermal mass required for longevity. This allows the operator to maintain the correct contact-tip-to-work distance (CTWD) even in tight corners or deep grooves, ensuring proper gas coverage and penetration. Supplied in a convenient pack of 10, these tips are an essential inventory item for any shop utilizing Magnum PRO guns for aluminum fabrication.
Compatibility is seamless with Magnum PRO semi-automatic guns. The tips feature coarse threads that resist seizing, making changeovers quick and tool-free in many cases. By choosing genuine Lincoln Electric consumables, you ensure that the entire current transfer path—from the power pin to the arc—is optimized for efficiency and reliability.
| Additional Information |
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| Brand:Lincoln Electric |
| Packaging Description:10 PER EA |
| Wire Diameter:3/64 in, 1.2 mm |
| Wire Type:Aluminum |
| Tip Shape:Tapered |
| Material:Copper Plus Alloy |
| Compatible Series:Magnum PRO |
| Amperage Rating:350A |
