Patent ID: 11926881
Assignee: JFE STEEL CORPORATION
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  B  Y | IPC B  C

Claim 2:
3. The high-strength cold-rolled steel sheet according to claim 1, wherein the chemical composition further comprises, by mass %, at least one selected from the group consisting of Nb: 0.020% or less, V: 0.100% or less, Mo: 0.500% or less, Cr: 1.00% or less, Cu: 1.00% or less, Ni: 0.50% or less, Ta: 0.100% or less, W: 0.500% or less, Sn: 0.200% or less, Sb: 0.200% or less, Co: 0.100% or less, Zr: 0.0200% or less, Ca: 0.0200% or less, Mg: 0.0200% or less, and REM: 0.0200% or less.