Low-alloyed Electrodes

ES 9018 B3 A5.5: E 9018-B3 / E 1599: E CrMo 2 B 42 H5


ES 9018 B3 is a basic coated electrode for joining and welding of great and creep resistant steels containing % 2.2 Cr + % 1.0 Mo that are exposed to operating temperatures up to +600°C. The weld metal has a high resistance to cracking. ES 9018 B3 runs with a quite, stable arc giving a minimum amount of spatter and smooth weld beads. It is recommended to use the electrode in DC (+). Re-drying is 350°C - 400°C min. 2h

Typical Chemical Composition (%)


Typical Mechanical Properties

Yeild Strength Tensile Strength Elongation 5x D Impact (ISO-V)
540 N / mm² 650 N / mm² % 20 +20°C 100 j


Power plant construction ; flange pipes used in petrochemical plants ; forged cast parts, vapour production plants. Pre heaters and heaters, steam boilers and pressure vessels and steam pipes made of Cr-Mo alloyed steels, nitride steels, non heated cementation steels connections are among some application areas where ES 9018 B3 is used. It can also be used in welding similarly alloyed cementation steels, heat treatable steels and cast steels. Part should be preheated before welding to avoid the cracking risk and operating temperature during welding should not exceed 300°C

Sizes Available & Recomennded Currents

Diam. (mm) Length (mm) Current (Amperes) Arc Voltage Wire Feed
2.50 350 80 - 110
3.25 350 90 - 140
4.00 450 130 - 190
5.00 450 150 - 260

Welding Current

DC {+}

Welding Positions



Vertical Up


Hardness (HB)

Special Coating ( performs several functions)

Typical Base Material Grades