Last updated: October 2025. Technical data based on GDP Welding Consumables public datasheet E309-BST Rev 4.2.
An E309 electrode typically contains and 12-14% Nickel . This high alloy content places it between standard 308 (for 304 stainless) and 310 (for high heat). The E309 is specifically designed for: gdp e309 best
: With a nominal composition of roughly 23.5% Chromium and 13% Nickel, it produces a weld deposit with high ferrite content (usually greater than 8 FN), which significantly reduces the risk of hot cracking during the cooling process. Last updated: October 2025