Cr—Fe—Ni-based alloy product

A Cr—Fe—Ni-based alloy product which is a product produced using a Cr—Fe—Ni-based alloy containing Cr as a largest-content component, the chemical composition of the Cr—Fe—Ni-based alloy consisting of:

• 44 to 75% by mass inclusive of Cr,
• 10 to 33% by mass inclusive of Fe,
• 10 to 40% by mass inclusive of Ni,
• 0.05 to 2% by mass inclusive of Mn,
• 0.05 to 1% by mass inclusive of Si,
• 0.5 to 5% by mass inclusive of Al,
• more than 0% by mass and 0.1% by mass or less of C,
• more than 0% by mass and 2% by mass or less of N,
• more than 0% by mass and 0.2% by mass or less of O,
• more than 0% by mass and 0.04% by mass or less of P,
• more than 0% by mass and 0.01% by mass or less of S, and
• as an optional auxiliary component:
• at least one of Ti in an amount of more than 0% by mass and 4% by mass or less and Cu in an amount of more than 0% by mass and 2% by mass or less,
• wherein the product has such a microstructure that a dual-phase structure having a ferrite phase and an austenite phase coexisting therein serves as a matrix phase and an L12-type Ni-based intermetallic compound phase is dispersed and precipitated in the austenite phase, and
• wherein the occupancy of the ferrite phase in the microstructure in the product is 60% by area or more.