Polyurethane-containing non-foamed molded body

A non-foamed molded body comprising a polyurethane,

• wherein, assuming that a straight line L that passes through a center of gravity G of the molded body and a point on a surface of the molded body positioned at a shortest distance from the center of gravity G and that penetrates through the molded body is drawn, a length of a longest line segment LM out of portions on the straight line L that overlap the molded body is at least 180 μm,
• wherein, when
• a Martens hardness measured at a point SA on the surface of the molded body where one end portion A of the line segment LM is positioned is represented by HM1, and
• in a cross-section of the molded body including an entire length of the line segment LM, Martens hardnesses measured at three points on the line segment LM at intervals of 30 μm from the end portion A toward another end of the line segment LM are represented by HM2, HM3, and HM4, respectively,
• HM2>HM3>HM4 is satisfied,
• wherein the HM1 is 1.0 N/mm2 or more,
• wherein, when, with regard to an index value Kω determined by the following equation (1) from a scattering profile obtained by allowing a characteristic X-ray from a Cu tube to incident on a surface region to be evaluated of the molded body including the point SA at an incidence angle θ, the index value at θ=0.5° is represented by Kω1, the index value at θ=1.0° is represented by Kω2, and the index value at θ=3.0° is represented by Kω3, Kω1>Kω2>Kω3 is satisfied:
• K
• ω
• =
• [
• I
• c
• /
• (
• I
• c
• +
• I
• a
• )
• ]
• ×
• 1
• ⁢
• 0
• ⁢
• 0
• (
• 1
• )
• where Ic represents a peak area value at 2θ-21.0° in the scattering profile, and Ia represents a peak area value at 2θ=20.2° in the scattering profile, and
• wherein the molded body has an erosion rate E of 0.6 μm/g or less, which is measured with spherical alumina particles having an average particle diameter (D50) of 3.0 μm in the surface region to be evaluated.