62060605V - Bonarc ER308L Stainless MIG Wire .023 Inch 5kg Spool

Technical Overview: Bonarc ER308L .023" MIG Wire

Bonarc ER308L is a solid gas metal arc welding (GMAW) wire designed for joining 18% Chromium - 8% Nickel austenitic stainless steels, such as AISI 301, 302, 304, and 304L. The 0.023-inch (0.6mm) diameter is specifically tailored for low-amperage applications on thin-gauge base metals, allowing for precise bead placement and minimal heat affected zone (HAZ). This makes it the ideal choice for sheet metal fabrication where burn-through is a primary concern.

The chemical composition of this wire features an extra-low carbon content (maximum 0.03%), which is essential for preventing carbide precipitation at the grain boundaries. This metallurgical characteristic significantly reduces the risk of intergranular corrosion, ensuring the longevity of the weld even in corrosive environments. The wire produces a smooth, stable arc with minimal spatter, resulting in a flat bead profile that requires little post-weld grinding or finishing. It exhibits excellent wetting action, tying into the toes of the weld smoothly.

For optimal performance, this wire should be used with Direct Current Electrode Positive (DCEP) polarity. Shielding gas selection is critical; a tri-mix of Helium, Argon, and CO2 is often recommended for short-circuit transfer on thin materials to improve bead profile and color, although Argon/CO2 (98/2) mixtures can also be effective depending on the specific welding procedure specification (WPS). The 5kg spool provides a balance between run-time and handling ease.

Metallurgical & Operational Features

• Alloy Type: 308L Austenitic Stainless Steel.
• Tensile Strength: Matches or exceeds base metal properties for 304/304L.
• Corrosion Resistance: High resistance to intergranular corrosion due to low carbon.
• Weldability: Excellent feedability and arc stability in short-circuit transfer mode.