▎ 摘　　要

NOVELTY - A high chromium ball comprises 2-3.3 wt.% carbon, 0.3-1.2 wt.% silicon, 1.3-2.6 wt.% manganese, 10-13 wt.% chromium, 0.3-1 wt.% molybdenum, 0.25-0.50 wt.% copper, 0.1 wt.% or less sulfur, 0.1 wt.% or less phosphorus, 0.1-0.3 wt.% cerium, 1-3 wt.% graphene, and balance iron. USE - High chromium ball. ADVANTAGE - The high chromium wear-resistant ball has high hardness, HPC of 74, and strong impact toughness given by an impact value of 20 J/cm2. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of high chromium ball.