| 摘要 |
The invention relates to a high strength low alloy steel. According to the invention the high strength low alloy steel strip, sheet or blank, coated with zinc or a zinc alloy, has the following composition in weight%: C: 0.03 - 0.07, Mn: 0.70 - 1.60, Si: ≤ 0.01 - 0.2, Al: 0.005 - 0.1, Cr: ≤ 0.1, Cu: ≤ 0.2, N: ≤ 0.008, P: ≤ 0.03, S: ≤ 0.025, O: ≤ 0.01, Ti: 0.02 - 0.07, V: 0.04 - 0.15, Mo: ≤ 0.03, Nb: ≤ 0.03, Ca: ≤ 0.05, the remainder being iron and unavoidable impurities, wherein the steel strip, sheet or blank has a yield strength Rp0,2 of at least 420 MPa. |
