| 摘要 |
PROBLEM TO BE SOLVED: To provide a tank material which has a superior pressure capacity even if repeatedly loaded with high-temperature high-pressure air.SOLUTION: A tank material is composed of a three-layered clad material formed by sticking a core material 11, a brazing filler metal 12 arranged on one surface of the core material 11, and a skin material 13 arranged on the other surface of the core material 11, and the core material 11, the brazing filler metal 12, and the skin material 13 have compositions as follows: the core material comprising 1.0-1.8 mass% of Mn, 0.3-1.0 mass% of Si, 0.3-1.0 mass% of Cu, 0.1-1.0 mass% of Fe, and Al and inevitable impurities for the balance; the brazing filler metal comprising 6.0-9.0 mass% of Si, and Al and inevitable impurities for the balance; and the skin material comprising Al of 99.0 mass% in purity, and inevitable impurities for the balance. |
