| 摘要 |
To provide a nickel brazing material used for brazing for a heat exchanger, etc., which is capable of joining various stainless steel parts by brazing at relatively low temperatures and has moderate material strength and excellent corrosion resistance. The nickel brazing material has a melting temperature of 1000°C or less together with acid corrosion resistance, and includes 15.0 to 30.0 mass% of Cr, 6.0 to 18.0 mass% of Cu, 1.0 to 5.0 mass% of Mo, 5.0 to 7.0 mass% of P, 3.0 to 5.0 mass% of Si, and 0.1 to 1.5 mass% of Sn, with the remainder being Ni and inevitable impurities, and the total of Si and P being 9.5 mass% to 11.0 mass%. In addition, the nickel brazing material may also include at least one element selected from the group consisting of Co, Fe, Mn, C, B, Al, and Ti, wherein the content of Co is 5.0 mass% or less, the content of Fe is 5.0 mass% or less, the content of Mn is 3.0 mass% or less, the total content of C, B, Al, and Ti is 0.5 mass% or less, and the total content of these elements is 10.0 mass% or less. |
