Abstract: This paper deals with the inequalities involving Sándor-Yang means derived from the Schwab-Borchardt mean using the method of real analysis. The convex com-binations of the arithmetic mean A(a, b) and quadratic Q(a, b) (or contra-harmonic mean C(a, b)) for the Sándor-Yang means S_QA(a, b) and S_QA(a, b) are disscused. The main results obtained are the sharp bounds of the two convex combinations, namely, the best possible parameters α₁, α₂, α₃, α₄, β₁, β₂, β₃, β₄ ∈ (0, 1), such that the double inequalitiesα₁Q(a, b) + (1-α₁)A(a, b) < S_QA(a, b) < β₁Q(a, b) + (1-β₁)A(a, b),
  α₂Q(a, b) + (1-α₂)A(a, b) < S_QA(a, b) < β₂Q(a, b) + (1-β₂)A(a, b),
  α₃C(a, b) + (1-α₃)A(a, b) < S_QA(a, b) < β₃C(a, b) + (1-β₃)A(a, b),
  α₄C(a, b) + (1-α₄)A(a, b) < S_QA(a, b) < β₄C(a, b) + (1 -β₄)A(a, b)hold for all a, b > 0 and a≠b. Here A(a, b), Q(a, b) and C(a, b) denote respectively the classical arithmetic, quadratic, contra-harmonic means of a and b, S_QA(a, b) and S_QA(a, b) are two Sándor-Yang means derived from the Schwab-Borchardt mean.