Tech-Rod 309/309L description: Tech-Rod 309/309L electrodes have reduced carbon levels (0.04% max) that offers increased resistance to inter-granular corrosion. Type 309/309L is ideal for joining stainless steels to themselves or to carbon or low alloy steels, and can be used at temperatures of up to 700°F (371°C). Reduced carbon levels help prevent intergranular corrosion.
Applications: Do not exceed service temperatures of 700°F (371°C).