KP2745-116R-B100 - Lincoln Electric Magnum PRO Copper Plus Contact Tip 550A 1/16in (100 Pack)

Technical Overview of the Lincoln Electric KP2745-116R-B100

The Lincoln Electric KP2745-116R-B100 is a high-performance contact tip engineered specifically for the Magnum® PRO series of semi-automatic and robotic MIG guns. This component is designated for use with 1/16 inch (1.6 mm) welding wire and is rated for high-amperage applications up to 550A. The "Copper Plus®" nomenclature indicates the use of a proprietary copper alloy formulation that offers distinct metallurgical advantages over standard C12200 phosphorus deoxidized copper or C11000 electrolytic tough pitch copper commonly found in generic consumables.

The primary technical benefit of the Copper Plus alloy is its enhanced thermal conductivity and resistance to annealing at elevated temperatures. In high-duty cycle industrial welding, contact tips are subjected to intense radiant heat from the arc and resistive heating from the welding current transfer. Standard copper tips can soften and deform (keyhole) under these conditions, leading to poor electrical contact, micro-arcing, and unstable wire feeding. The KP2745-116R utilizes a harder, more heat-resistant alloy that maintains its dimensional integrity longer, ensuring the bore diameter remains within tolerance for extended periods.

This specific SKU is the "B100" variant, indicating a bulk packaging configuration containing 100 individual contact tips. This packaging is optimized for high-volume manufacturing environments, such as heavy fabrication shops, shipyards, and automotive assembly lines, where consumable inventory management is critical. The tips feature the standard Magnum PRO thread pattern, designed to mate securely with Magnum PRO gas diffusers, maximizing the surface area for current transfer and minimizing electrical resistance at the threaded interface.

By integrating the KP2745-116R-B100 into your welding operations, you ensure compatibility with the broader ecosystem of Lincoln Electric's industrial welding solutions. The precise machining of the 1/16-inch bore reduces friction on the wire, which is particularly important when feeding stiffer wires or operating at higher wire feed speeds associated with 550A procedures.