| 摘要 |
Provided are a ferrite-based stainless steel plate and steel pipe that serve as raw material for heat-resistant components requiring particularly excellent molding properties, same being provided as a result of the ferrite-based stainless steel containing 10%-20% by mass Cr, a prescribed amount of C, Si, Mn, P, S, and Al, and a prescribed amount of at least one type of Ti and Nb, said ferrite-based stainless steel having, in the vicinity of the plate thickness center section, a {111} strength of at least 5 and a {411} strength of less than 3. In addition, as a result of having similar components and having a {111} <110> orientation strength of at least 4.0 and a {311} <136> orientation strength of less than 3.0, a ferrite-based stainless steel plate and steel pipe can be obtained that have excellent molding properties and whereby rm ≥ -1.0t + 3.0 when the plate thickness is t (mm) and the average r value is rm. |
