HOT WORKING DIE STEEL AND MEMBER COMPRISING THE SAME FOR HIGH-TEMPERATURE USE

摘要

Alloy steel containing 0.10 to 0.50 wt% of C, 0.5 wt% or less of Si, 1.5 wt% or less of Mn, 1.5 wt% or less of Ni, 3.0 to 13.0 wt% of Cr, 0 to 3.0 wt% of Mo, 1.0 to 8.0 wt% of W,0.01 to 1.0 wt% of V, 0.01 to 1.0 wt% of Nb, 1.0 to 10.0 wt% of Co, 0.003 to 0.04 wt% of B, and 0.005 to 0.05 wt.% of N, the balance comprising Fe and unavoidable impurities.