632798 - ESAB 1/16 Inch Contact Tip (Pack of 5)

Technical Overview of ESAB 632798 Contact Tips

The ESAB 632798 Contact Tip is a critical consumable component designed for industrial MIG welding applications utilizing 1/16-inch (1.6mm) diameter wire. Manufactured to ESAB's rigorous Original Equipment Manufacturer (OEM) standards, these contact tips are engineered to provide superior electrical conductivity and thermal management within the welding circuit. The contact tip serves as the final point of electrical transfer to the electrode wire, making its dimensional accuracy and material composition vital for maintaining a stable arc and consistent weld bead profile.

Constructed from a high-grade copper alloy, this contact tip offers an optimal balance between hardness and conductivity. The alloy is formulated to resist the intense heat generated during high-amperage welding processes while minimizing the rate of keyholing—the ovalization of the tip bore that leads to poor electrical contact and wandering arcs. The bore is precision-drilled and honed to ensure smooth wire feeding, reducing friction that can cause bird-nesting at the drive rolls or erratic wire stick-out.

This specific SKU (632798) is compatible with a range of legacy and current ESAB MIG guns, including the ST-23, ST-16, and various models within the MT series (MT-200, MT-250, MT-300, MT-400). Proper maintenance of the contact tip is essential for quality control in automated and manual welding operations. As the bore wears, the electrical contact point shifts, altering the resistive heating of the wire (I²R heating) and potentially affecting penetration and fusion. Replacing the tip at regular intervals ensures that welding parameters remain within specification. This product is supplied in a pack of five, facilitating inventory management for high-volume fabrication environments.

Industrial procurement specialists should note that using genuine ESAB consumables guarantees thread compatibility and proper seating within the gas diffuser, preventing gas leakage and ensuring efficient shielding gas coverage. The 632798 tip is an essential stock item for facilities running heavy fabrication tasks with 1/16" flux-cored or solid wires.