Patent ID: 7455811

Claim:
An iron based brazing material for joining objects by brazing, comprising an iron-based alloy manufactured by one of gas atomization and water atomization, said iron-based alloy consisting of 9-30% Cr, 0-8% Mn, 2-25% Ni, approximately 0-1% N, and Mo present in a maximum of 7% Mo, 0-20% Hf, less than about 6% Si, and if B is present then B being present in an amount of about 0% to about 2% B, and P being present in an amount of about 1% to about 15% P, all stated in weight percent, which addition of P and at least one of Si and B lowers the liquidus temperature, that is the temperature at which the brazing material is melted, the melting point lowering elements being present in the brazing material prior to brazing in amounts according to the following formula: Index=% P+1.1×% Si+3×% B, wherein the value of the Index should be approximately 4.5-18, and wherein the brazing material contains at least one of C, O, and S as a contaminating element in a trace amount.