AWS A5.4 E309L-15

JIS Z 3211 ES309L-15

Characteristics and Application

AWS A5.4 E309L-15 Welding rod, welding electrode The weld metal contains more Cr, Ni than 308LB. The microstructure containing suitable quantity of ferrite gives it an excellent resistance to hot cracking. The welding can be done in all positions with good X-ray soundness and good mechanical properties. The product produces good notch toughness at the temperature as low as -46℃. It is suitable for welding of dissimilar metals of mild steel and steel stainless, hardening alloy steel and steel with poor weldability.

Typical chemical Composition of Weld Metal (%)

Typical Mechanical Properties of Weld Metal

Welding Positions:

Notes on usage:

1. Clean up the contaminations on the base metal, groove and pass to pass with stainless steel brush.
2. Maintain short arc length. Moving range should be controlled within 2.5 times of the wire's dia when you are welding with weave method. 3. Dry the electrodes at 300—350℃ for 60 minutes before using. Take out consumables for half day consumption and keep in the environment at 100—150℃ during welding process.

4. Use lower current to prevent from cracking and minimize base metal dilution.

C 0.04  Mn 1.23  Si 0.27  P 0.020  S 0.012  Cr 22.7  Ni 13.20

Yield strength 440Mpa Tensile Strenght 570MPa Elongation 40% Charpy V-Notch -46℃ 55J

Welding rod, welding electrode