| 摘要 |
<p>A high strength double phase stainless steel strip, wherein it has a chemical composition in mass %: C: 0.04 to 0.15 %, Cr: 10.0 to 20.0 mass %, Ni: 0.5 to 4.0 mass %, and balance: substantially Fe, an old austenite average grain diameter is 10 μm or less, and it has a structure after transformation at an ordinary temperature which contains martensite in an amount of 20 to 85 vol % and ferrite in the balanced amount, and a hardness of HV300 or more. The double phase stainless steel strip can be used for the production of a steel belt excellent in surface characteristics, since the transformation strain associated with martensitic transformation is dispersed uniformly and thus no Luders band is formed during the correction of the shape of a steel belt.</p> |
