| 摘要 |
PROBLEM TO BE SOLVED: To manufacture a martensitic stainless steel tube excellent in weather resistance efficiently at a low manufacturing cost. SOLUTION: In this manufacturing method of the martensitic stainless steel tube excellent in the weather resistance, the tube is manufactured using martensitic stainless steel containing 9-15 mass % Cr as a base stock, next, after performing heat treatment, by colliding abrasives which are nonferrous oxide base or nonferrous carbide base and contain the magnetic iron of <=5% against the surface of the steel tube, an oxidized coating film which is generated on the surface is removed. Furthermore, it is preferable to circulate and reuse the abrasives.
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