Niobium and chromium low alloy carbon steel for high wear resistance automotive chain link plates

摘要

Niobium chromium low alloy carbon steel for automotive chain link plates has improved wear resistance. In a preferred embodiment, the steel composition comprises niobium, chromium, carbon, iron and any impurities. One preferred composition comprising these components is, by weight percent, from about 0.25% to 0.75% carbon, from about 0.20% to 2.0% chromium, from about 0.26% to 1. It contains 5% niobium and the balance of the composition is iron. Trace amounts of impurities can also be present. In another embodiment, the steel composition is about 0.25% to 0.75% carbon, about 0.2% to 1.0% manganese, about 0.05% to 0.60 by weight percent. % Silicon, about 0.26% to 1.5% niobium, about 0.20% to 2.0% chromium, up to about 0.30% aluminum, up to about 0.03% phosphorus, up to about It contains 0.03% sulfur and the balance of the composition is iron and any other impurities. [Selection] Figure 1