Forged steel roll for cold rolling

A forged steel roll for cold rolling with a Vickers hardness Hv at 400° C. of 400 or more, having a chemical composition comprising, by mass %,

• C:
• 0.70 to 1.50%,
• Si:
• 0.40 to 1.50%.
• Mn:
• 0.20 to 1.50%,
• P:
• 0.030% or less,
• S:
• 0.0200% or less,
• Al:
• 0.050% or less,
• N:
• 0.0200% or less,
• O:
• 0.0050% or less,
• Cr:
• 2.80 to 8.00%,
• Mo:
• 0.30 to 3.00%,
• Cu:
• 0.100% or less,
• B:
• 0.0100% or less,
• Ni:
• 0 to 1.20%,
• V:
• 0 to 2.00%.
• Nb:
• 0 to 1.00%, and
• balance:
• Fe and impurities, and
• satisfying the following formula 1:
• 4.5
• ≤
• Cr
• +
• Mo
• +
• V
• +
• Nb
• ≤
• 14.
• formula
• ⁢
• 1
• wherein the contents (mass %) of the elements entered in the symbols of the elements in formula 1, and 0 is entered in the case where the elements are not included.