| 摘要 |
A high hardness, high toughness and inexpensive shot material for shot peening is provided. The high-hardness shot material for shot peening comprises, in mass %, 5 to 8% of B; 0.05 to 1% of C; 0 to 25% of Cr; balance Fe and inevitable impurities. B and C are contained in a total amount of 8.5% or less. |
