NITRATABLE STEEL PISTON RINGS AND STEEL CYLINDRICAL SLEEVES AND CASTING METHOD FOR THE PRODUCTION THEREOF

摘要

A steel piston ring and steel cylinder liner comprising a steel composition having excellent nitriding ability as a main body is disclosed. The steel composition consists of the following components: From 0 to 0.5% by weight of B, from 0.5 to 1.2% by weight of C, from 4.0 to 20.0% by weight of Cr, from 0 to 2.0% by weight of Cu, from 45.30 to 91.25% by weight of Fe, from 0.1 to 3.0% 0 to 0.05 wt% of Mo, 0 to 0.05 wt% of Nb, 2.0 to 12.0 wt% of Ni, 0 to 0.1 wt% of P, 0 to 0.05 wt% of Pb, 0 to 0.05 wt% of S, % Si, 0 to 0.05 wt.% Sn, 0.05 to 2.0 wt.% V, 0 to 0.2 wt.% Ti and 0 to 0.5 wt.% W. steel piston rings and steel cylinder liners for the production of cast iron parts And can be manufactured by casting processes using the machinery and techniques employed.