SELECTARC B72 - Low-hydrogen basic coated electrode for fine-grain structural steels with excellent impact strength

SELECTARC B72 - Low-hydrogen basic coated electrode for fine-grain structural steels with excellent impact strength

CLASSIFICATION

CHARACTERISTICS AND APPLICATIONS

Low-hydrogen basic coated electrode, particularly recommended for root passes on fine-grain steels with tensile strength between 550–700 MPa.
Ensures safe welding, stable arc, and high-quality welds with very good impact values at low temperatures.
Suitable for crane mounting rails and other highly stressed structural components.

WELD METAL CHEMICAL COMPOSITION (%)

C: <0.1  Mn: 1.2  Si: 0.5  Mo: 0.3  Ni: 0.8  Cr: 0.1

MECHANICAL PROPERTIES

Rₘ (MPa): >620  Rₑ (MPa): >550  A₅ (%): >20  KV (J): +20 °C → >150 ; –50 °C → >50 ; –60 °C → >28

DIMENSIONS AND WELDING CURRENT

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