Daido Steel Co., Ltd.

Asako Kamimoto

Kenji Sugiyama

Koichiro Inoue

Takashi Yoshimoto

Yuki Ito

The present invention relates to a metal powder containing: 0.001 mass %≤C≤0.45 mass %, 0.01 mass %≤Si≤3.50 mass %, Mn≤2.0 mass %, 7.5 mass %≤Cr≤21.0 mass %, 1.5 mass %≤Ni≤7.0 mass %, Mo≤1.3 mass %, 0.05 mass %≤V≤2.0 mass %, Al≤0.015 mass %, and N≤0.20 mass %, with the balance being Fe and unavoidable impurities, satisfying 0.05 mass %≤C+N≤0.58 mass %, and satisfying: 10<15C+Mn+0.5Cr+Ni<20 and Cr/Ni<5.6, where Cr=Cr+Mo+1.5Si+0.5Nb, and Ni=Ni+30C+30N+0.5Mn.

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Nagoya, Japan

Asako Kamimoto