The three specimen 304 stainless steel powders in the paper were prepared in Q235 substrate by laser remanufactur-ing, The three specimens were one standard 304 stainless steel powder, one kind of 304 stainless steel powder with 10%Ni60A and 304 stainless steel powder with 15%Ni60A.The surface hardness and the tensile mechanical properties of the clad-ding layer were investigated by using Vickers microhardness tester and universal testing machine respectively .The results showed that the Vickers microhardness and tensile strength of the 304 stainless steel specimens which added Ni60A power are...