Stainless Steel Electrodes

ES 309 L A5.4: E 309 L 17 / EN 1600: E 23 12 LR 12


ES 309 L is a low carbon rutile coated electrode. It gives a filler metal of the Cr-Ni type. Weld beads are highly resistant to oxidation at operating temperatures up to 1000 C. It can be used in all positions. The weld metal has a high resistance to cracking. Ferrite content is 12 %.

Typical Chemical Composition (%)


Typical Mechanical Properties

Yeild Strength Tensile Strength Elongation 5x D Impact (ISO-V)
460 N / mm² 590 N / mm² % 40 + 20 °C 70 j - 80 °C 35 j


ES 309 L is used for welding of Cr and Cr-Ni alloyed steels that are highly resistant to operating conditions up to 1000°C. It is particularly used for joining stainless steels with low and medium alloyed steels and for root pass applications before welding of surface plated steels. It can also be used for cladding of mild steels and to form a buffer layer for hard facing before welding with ES 307 ES 309 L is an ideal electrode especially designed for welding pipes, plates and tanks that are used in chemical, petrochemical, food and paper industries; forged and cast pieces and industrial furnaces that are exposed to high temperatures.

Sizes Available & Recomennded Currents

Diam. (mm) Length (mm) Current (Amperes) Arc Voltage Wire Feed
2.5 250 50 - 90
3.25 350 90 - 120
4.00 350 130 - 180

Welding Current

AC min. 50 V / DC { + }

Welding Positions



Vertical Up


Hardness (HB)

Special Coating ( performs several functions)

Typical Base Material Grades