| 摘要 |
Provided is a threaded joint for a pipe in which sealability, compression resistance, and galling resistance are enhanced. Specifically, a pin nose outer peripheral surface (30) forms an outward convex curve in an axial cross-sectional view; the convex curve is such that a composite R curve (N), in which a plurality of outward convex arcs having different radiuses of curvature (Rs) are connected in sequence to a generating line of a cylindrical portion next to a male member (5), is curved such that the radiuses of curvature (Rs) increase with distance from the male member (5) and tangents on connection points of the arcs are aligned with those of corresponding arcs connected thereto; and the inner peripheral surface of a box component (1) facing the pin nose (30) is a tapered surface (20) that interferes with the pin nose outer peripheral surface (30) when connected to a pin component (3). |
