Bohler Avesta 309L (Austenitic Steels) Stainless Steel Stick Electrodes
Perfect for welding austenitic stainless steels (like 304 or 316) to carbon or low-alloy structural steels, used as a first-layer buttering or overlay pass on mild steel before applying subsequent matching stainless layers. Suitable for heat-resistant steels and applications matching ASTM 309S / 1.4833.
Features
- Classification: E 19 9 L R / E308L-17 type.
- Applications: Ideal for joining ASTM 304 and 304L (1.4301 and 1.4307) stainless steel grades in all standard positions.
- Corrosion Resistance: Very good resistance to oxidising acids and inter-granular corrosion up to a maximum service temperature of 350°C (660°F).
- Weld Properties: Produces an austenite micro-structure containing 5–10% ferrite for crack resistance
Technical Data
- AWS A5.4 / SFA-5.4, E309L-17
- EN ISO 3581-A, E 23 12 L R 3 2
- Austenite with a controlled ferrite content of 5% to 10% (FN 4–10) to eliminate hot-cracking risks.