OJ309L-045F - Kobelco DW-309L .045 Flux Core Stainless Wire 28lb Spool

Premium Kobelco 309L Flux Core Stainless Wire

The Kobelco DW-309L is a high-performance flux-cored wire designed for the welding of dissimilar metals, specifically joining stainless steels (such as 304 or 316) to mild or low-alloy carbon steels. This 0.045-inch diameter wire comes in a 28lb spool and is engineered for all-position welding, providing exceptional versatility for fabricators who need to weld in vertical or overhead positions without sacrificing bead quality.

Known for its smooth arc and excellent feedability, this wire reduces downtime associated with bird-nesting or contact tip burn-back. The flux formulation ensures a stable arc with significantly reduced spatter compared to traditional dip-transfer solid wires, leading to less post-weld cleanup. The slag is self-peeling in many applications, revealing a bright, smooth weld bead that requires minimal grinding.

This wire is classified typically as E309LT1-1/4, meaning it can be used with either 100% CO2 or an Argon/CO2 blend, giving shops flexibility based on their available gas supply. It is an ideal choice for buffer layers on carbon steel before cladding with 308L or 316L, as well as for general repair and maintenance where steel grades may be unknown or mixed.