Hardfacing Electrodes

ES 25 Ni A 5.11: ENiCrMo-5 / EN 14700: E Ni 2

Description

ES 250 Rutile basic covered, ~ 180% efficiency electrode. The weld metal to thermal shock, corrosion and abrasion resistant and extremely hard red is high. Improperly calm and spatter-free. Before using the electrodes must be dried for 2 hours to 200-250 C`T.

Typical Chemical Composition (%)

SiMnMoCrCNiWFe
0.300.9015.016.50.04Balance5.06.0

Typical Mechanical Properties

Yeild Strength Tensile Strength Elongation 5x D Impact (ISO-V)

Applications

It is outstand suitable for buildings on hot work tools ( dies and jaws in forging machines, hot punches, forming dies, hot shear blades ) requiring high red hardness and resistance to thermal shock. Particularly suitable for reconditioning to worn hot mandrels in pipe fabrication. Deposit does not require preheating but depends upon base metal.

Sizes Available & Recomennded Currents

Diam. (mm) Length (mm) Current (Amperes) Arc Voltage Wire Feed
2.50 350 60 - 90
3.2 350 130 - 170
4.0 350 160 - 200
5.0 350 170 - 220

Welding Current

Welding Positions


Flat

Horizontal
*    
Fillet

Hardness (HB)

250 350 (Annealed 800C/4H h) - < 550 (Work harden ability)


Special Coating ( performs several functions)


Typical Base Material Grades