Method for producing high chromium seamless pipe or tube

A billet containing, by mass %, 8.0 to 16.0% of Cr with a value represented by the formula of "Cr+4Si-(22C+0.5Mn+1.5Ni+30N)" of not more than 9.0%, wherein the symbols of the elements represent the contents, by mass %, of the elements in the steel, is heated by means of a heating furnace conditioned so as to have a soaking temperature of 1100 to 1300° C. and an in-furnace time (min) of not less than "0.5xDiameter of the billet (mm)". Thereafter, by means of a centering machine capable of forming a center hole having a diameter of not less than "0.34xDiameter of the billet (mm)" at one end face of the said billet where piercing starts by punch of 60 to 110° punching angle, a center hole is formed at the said face of the billet, followed by piercing and rolling by an inclined roll type piercing mill of not more than 8.0% plug tip draft rate. The thus-produced high-Cr seamless pipe or tube has excellent internal surface properties with minimized internal surface defects.