Cast Iron Alloys

ES Ni 99 A5.15: E Ni-CI / EN 1071 : E C Ni-Cl 1


ES Ni 99 is a Nickel cored electrode. It enables welding with drop arc metal transfer. It is used for the welding of all types of cast irons especially for joint welding of grey cast iron, temper cast iron, s fero cast iron as well as the joint welding of cast iron to steel, stainless steel and monel metal Ni cored electrode. It gives a very stable arc and a negligible amount of slag that can easily be removed. Heat effected zone is very narrow. Porosity free weld metal can be easily machined. It has excellent resistant to cracking. Welding should be made with short passes and each pass should be made struck gently by a hammer when it is hot.

Typical Chemical Composition (%)


Typical Mechanical Properties

Yeild Strength Tensile Strength Elongation 5x D Impact (ISO-V)
300 N / mm² 380 N / mm² % 8 - 10


ES Ni 99 is particularly used for the joining and build up welding of grey cast iron, nodular cast iron and malleable cast iron parts. It is an ideal electrode for the joining of cast iron pieces to monel alloys, stainless and ordinary steels. It can also be used for filling up cavities in castings, or cavities that might form after machining. When welding cast iron without preheat, the smallest possible electrode diameter 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 - 300°C and slow cooling is recommended.

Sizes Available & Recomennded Currents

Diam. (mm) Length (mm) Current (Amperes) Arc Voltage Wire Feed
2.50 350 65 - 100
3.25 350 90 - 140
4.0 350 110 - 180
5.0 350 160 - 250

Welding Current

AC min. 40 V. / DC { - }

Welding Positions



Vertical Up

Vertical Down



Hardness (HB)

120 - 140

Special Coating ( performs several functions)

Typical Base Material Grades