Stainless Steel Electrodes

ES 347 A5.4: E 347-17 / EN 1600: E 19 9 Nb R 12


ES 347 is a low carbon rutile coated electrode. It gives a niobium stabilised, Cr-Ni type filler metal of AISI 304 or similar quality. It has an excellent strength especially in oxidising environments like nitric acid. Smooth weld beads are highly resistant to acids and to inter granular corrosion at operating temperatures up to 350°C. Re-drying is 300°C min. 2 h.

Typical Chemical Composition (%)


Typical Mechanical Properties

Yeild Strength Tensile Strength Elongation 5x D Impact (ISO-V)
520 N / mm² 600 N / mm² % 35 +20°C - 55 J


ES 347 can be used particularly in the welding of austenitic stainless steels of AISI 321 and 347 type. It can also be used for Cr-Ni steels and for steel cast parts having same or similar analysis results with the electrode. Tanks, pipes and vessels that are used in chemical, milk and food industries; parts exposing to the effect of acid, gas and vapor; and water fittings are among some application areas.

Sizes Available & Recomennded Currents

Diam. (mm) Length (mm) Current (Amperes) Arc Voltage Wire Feed
2.5 250 50 - 80
3.25 300 95 - 110
4.00 350 120 - 160

Welding Current

AC min. 50 V / DC { + }

Welding Positions



Vertical Up


Hardness (HB)

Special Coating ( performs several functions)

Typical Base Material Grades