| 摘要 |
PROBLEM TO BE SOLVED: To enable a metal substrate with an insulating layer to maintain good strength and insulation characteristics as a flexible substrate even if the metal substrate has been subjected to a high temperature history of 550°C or higher.SOLUTION: A metal substrate 10 with an insulating layer includes: a steel base 11; and an Al layer 12 provided on at least one surface of the steel base 11, wherein an anodic oxide film 13 having a porous structure is formed, as an electrically insulating layer, on the Al layer 12. The steel base 11 contains 0.0025-0.02 mass% of N. |
