| 摘要 |
PROBLEM TO BE SOLVED: To provide new steel provided with corrosion resistance which allows heat treatment and surface treatment such as planting treatment to be needless and moreover having characteristics excellent in wear resistance and the facial roughness of the worked surface. SOLUTION: This manganese alloy steel contains, by weight, 0.05 to 0.50% C, <=0.5% Si, 6.0 to 25% Mn, <=0.05% P, <=0.35% S, 0 to 3.0% Cu, 0 to 5.0% Ni, 5.0 to 20.0% Cr, 0 to 3.0% Mo, 0.04 to 0.30% N, <=0.10% Al, and the balance Fe with inevitable impurities, and, MnS as nonmetallic inclusions on which the ones having the shape with a width of <=3μm and a length of <=40μm occupy >=90% is finely dispersed into the inside.
|
