Low-alloyed Electrodes

ES 7018-A1 A5.5: E 7018-A1H4R / EN 1599: E Mo B 4 2 H5

Description

ES 7018 A1 Basic low-hydrogen electrode for 0.5 % Mo-alloyed boiler, plates, and tube steels. Approved in long term condition up to +550 C service temperature. For high quality welds of long term stressed components with reliable mechanical properties under high and low temperature conditions. Crack resistant, tough and ageing resistant. Very low hydrogen content (acc. AWS condition HD < 4 ml/100 g). Metal recovery approx. 115

Typical Chemical Composition (%)

SiMnMoC
0.350.80.450.08

Typical Mechanical Properties

Yeild Strength Tensile Strength Elongation 5x D Impact (ISO-V)
510 N / mm² 590 N / mm² % 25 + 20 °C 170 j - 50 °C 60 j

Applications

Sizes Available & Recomennded Currents

Diam. (mm) Length (mm) Current (Amperes) Arc Voltage Wire Feed
2.50 350 80 - 110
3.25 350 100 - 140
4.00 450 130 - 180
5.00 450 190 - 230

Welding Current

DC { + }

Welding Positions


Flat

Horizontal

Vertical Up
 
Overhead

Fillet

Hardness (HB)


Special Coating ( performs several functions)


Typical Base Material Grades