Cast Iron Alloys

ES Ni 55 A5.15: E NiFe-CI / EN 1071: E C NiFe Cl 1


ES Ni 55 is a nickel cored electrode. ?t is used for the welding of all types cast ?rons and particularly for the joining of austenitic alloyed cast irons; called Ni resist. It gives a very stable arc and a negligible amount of slag that can easily be removed. Weld metal can be easily machined and it has the same colour with that of the cast iron. It has excellent mechanical properties and it is very resistant to cracking. Welding should be made with short passes and each pass should be hammered by gently strikes when it is hot.

Typical Chemical Composition (%)


Typical Mechanical Properties

Yeild Strength Tensile Strength Elongation 5x D Impact (ISO-V)
320 N / mm² - 360 N / mm² 430 N / mm² - 470 N / mm² % 10


ES Ni 55 is particularly used for the coining and build up welding of grey cast iron, temper and nodular cast iron and malleable cast iron parts. It is an ideal electrode for the joining of cast iron pieces of stainless steel or steel parts. On the other hand, it can also be used for filling up cavities, or cavities that might form after machining. It is also an ideal electrode for the welding of parts, exposing to high dynamic forces, that are found in heavy machinery base and body. When welding cast iron without preheat, the smallest possible electrode diameter and the lowest possible welding current should be selected to limit the width of the heat effected zone that might occur due to excess heating. When welding thick pieces, a preheating to 150 - 200°C and slow cooling is recommended

Sizes Available & Recomennded Currents

Diam. (mm) Length (mm) Current (Amperes) Arc Voltage Wire Feed
5.50 350 45 - 80
3.25 350 60 - 110
4.0 350 90 - 120

Welding Current

AC min. 50 V. / DC { + }

Welding Positions



Vertical Up

Vertical Down



Hardness (HB)

160 - 200

Special Coating ( performs several functions)

Typical Base Material Grades