| 摘要 |
A steel product or thin steel cast strip including, by weight, less than 0.25% carbon, between 0.20 and 2.0% manganese, between 0.05 and 0.50% silicon, less than 0.01% aluminium, between 0.01% and 0.20% niobium, between 0.01% and 0.20% vanadium, and a microstructure of a majority bainite and acicular ferrite, and more than 70% niobium and vanadium in solid solution. The steel product may have a yield strength of at least 380 MPa, a tensile strength of at least 410 MPa, or both. The product may have a total elongation of at least 6% or 10%. |
