NI-CR BASED ALLOY BRAZING MATERIAL CONTAINING TRACE AMOUNT OF V

摘要

The present invention provides a Ni-Cr-based brazing alloy comprising, on the basis of mass %: 15% Cr 30%; 3% P 12%; 0% ≤ Si 8%; 0.01% C 0.06%; 0% ≤ Ti+Zr 0.1%; 0.01% V 0.1%; 0% ≤ Al 0.01%; 0.005% O 0.025%; 0.001% N 0.050%; 0% ≤ Nb 0.1%; and the balance being Ni and incidental impurities, wherein Inequality (1): 0.2 ≤ 0.24V%/C% ≤ 1.0 is satisfied if the alloy contains no Nb, and Inequality (2): 0.2 ≤ (0.24V%+0.13Nb%)/C% ≤ 1.0 is satisfied if the alloy contains Nb. The invention provides an inexpensive Ni-Cr-based brazing alloy containing a trace amount of V for use in the production of stainless steel heat exchangers and other steel articles. The alloy has a low liquidus temperature and high corrosion resistance, and achieves high brazing strength.