| 摘要 |
FIELD: metallurgy.SUBSTANCE: invention relates to metallurgy, namely to low-carbon under-peritectic steels used for production of seamless pipes of main oil and gas pipelines from continuously cast billets. Steel contains, wt%: carbon to less than 0.04, manganese 0.90-1.65, vanadium 0.03-0.08, aluminium 0.005-0.060, nitrogen 0.005-0.015, iron and unavoidable impurities making the rest.EFFECT: providing the required level of strength properties.1 cl, 1 dwg |
