| 摘要 |
<p>Steel for manufacture of steel components shaped by cold plastic forming, the chemical composition in mass % of which comprises: 0,03% <= C <= 0,16%; 0,5% <= Mn <= 2%; 0,05% <= Si <= 0,5%; 0% <= Cr <= 1,8%; 0% <= Mo <= 0,25%; 0,001% <= Al <= 0,05%; 0,001% <= Ti <= 0,05%; 0% <= V <= 0,15%; 0,0005% <= B <= 0,005%; 0,004% <= N <= 0,012%; 0,001% <= S <= 0,09%; at choice up to 0,005% calcium, up to 0,01% tellurium, up to 0,04 selenium and up to 0,3% lead; the rest is iron and impurities originating from smelting, where the chemical composition of steel further satisfies the following ratios: Mn + 0,9 x Cr + 1,3 x Mo + 1,6 x V >= 2,2% and Al + Ti >= 3,5 x N. Process of manufacture of the steel component shaped by the cold plastic forming as well as in this way obtained component.</p> |
