WELD METAL AND WELDED CONSTRUCTION WITH ITS USE Russian patent published in 2017 - IPC B23K35/30 B23K9/00 B23K9/23 B23K35/368 C22C38/46 

FIELD: metallurgy.

SUBSTANCE: weld metal containing in wt %: C from 0.02 to 0.10, Si from 0.10 to 0.60, Mn from 0.90 to 2.5, Ni of 0.20 to 2.00, Cr of 0.05 to 1.0, Mo: 0.10 to 1.50, Ti of 0.040 to 0.15, B of 0.0010 to 0.0050, O of 0.030 to 0.100, and N 0.015 or less, iron and inevitable impurities - the rest. The average equivalent circular diameter of the carbides having an equivalent circle diameter of 0.40 m or more among those present at the grain boundaries of the weld metal carbides is 0.75 m or less. The weld metal has high low-temperature toughness values at lower temperatures, SR-strength after annealing, as well as when using shielded arc welding using a gas shielded flux cored wire.

EFFECT: improved performance.

5 cl, 4 dwg, 6 tbl, 1 ex