| 摘要 |
A wire for alloying of steel with niobium contains metal covering which filled powder filling agent, which represents niobium and iron alloy– ferroniobium crushed to particles of the set size. In powder filling agent, which represents niobium and iron alloy – ferroniobium is crushed to particles of given size, content of niobium element is 37-72 %. In addition, ferroniobium crushed to particles having sizes larger than , and the filling of metal covering by powder filling agent of ferroniobium is from 160 to 900 g/m. |
