Welded rail

A welded rail comprising:

• a plurality of rail portions having a head portion and a web portion and having a height h;
• and
• a welded joint portion that joins the rail portions together,
• wherein the rail portion contains, as a chemical composition, by unit mass %,
• C:
• 0.75% to 1.20%,
• Si:
• 0.10% to 2.00%,
• Mn:
• 0.10% to 2.00%,
• Cr:
• 0.10% to 1.50%,
• P≤0.0250%,
• S≤0.0250%,
• Mo:
• 0% to 0.50%,
• Co:
• 0% to 1.00%,
• B:
• 0% to 0.0050%,
• Cu:
• 0% to 1.00%,
• Ni:
• 0% to 1.00%,
• V:
• 0% to 0.50%,
• Nb:
• 0% to 0.0500%,
• Ti:
• 0% to 0.0500%,
• Mg:
• 0% to 0.0200%,
• Ca:
• 0% to 0.0200%,
• REM:
• 0% to 0.0500%,
• N:
• 0% to 0.0200%,
• Zr:
• 0% to 0.0200%,
• Al:
• 0% to 1.00%, and
• a remainder consisting of Fe and impurities,
• a HAZ width of the welded joint portion is 60 mm or less,
• in a region of 0 to (2/3)×h from a head top portion outer surface in a cross section of the welded joint portion which is parallel to a longitudinal direction and an up-down direction of the welded rail and passes through a center of the welded joint portion and of +5 mm in the longitudinal direction from a welding center, an area ratio of a martensite structure is 0.0006% to 0.1000%, and
• in the region, the number of martensite structures having a grain size of 20 to 200 μm is 3 to 80.