264591 - Miller 2.0mm CuCrZr Contact Tip for Single Wire Welding

High-Performance Metallurgy for Heavy-Duty Welding

The Miller 264591 Contact Tip is a specialized consumable engineered for industrial welding environments where performance and longevity are paramount. Featuring a 2.0mm bore diameter, this tip is designed to accommodate heavy-gauge welding wires used in structural and high-deposition applications. The defining characteristic of this component is its material composition: Copper Chromium Zirconium (CuCrZr).

Unlike standard E-Cu (electrolytic copper) tips, which can soften and deform under the intense heat of high-amperage welding, CuCrZr is a precipitation-hardened alloy. This metallurgical structure allows the tip to maintain its hardness and physical integrity at elevated temperatures (resistance to annealing). For the welder, this translates to consistent wire feeding, reduced risk of "burn-back," and a stable electrical connection throughout the duration of the weld.

Optimized for Single Wire Applications

This contact tip is specifically designated for "Single Wire" setups, ensuring precise alignment and current transfer. The 2.0mm sizing is critical for specific wire diameters, preventing the micro-arcing that occurs with oversized bores or the friction feeding issues associated with undersized tips. By maintaining a tight tolerance, the Miller 264591 ensures that the welding current is transferred efficiently to the wire, resulting in a smooth, stable arc and superior weld bead characteristics.

Industrial operators utilizing Miller equipment for heavy fabrication will find this OEM part essential for maintaining uptime. The durability of the CuCrZr alloy significantly reduces the frequency of tip changes, thereby increasing overall productivity and reducing consumable costs over time.