The purity of No. 1 oxygen-free copper reaches 99.97%, the oxygen content is not more than 0.003%, and the total impurity content is not more than 0.03%;
Grade and temper forOxygen free copper strip Grade: TU1
Temper: O(M), 1/4H(Y4), 1/2H(Y2), H(Y), HH(T) 3. Chemical composition of Electromagnetic shielding Copper foil tape TU1/ C10100 Chemical composition (Cu+Ag) ≥99.97 (Pb) ≤0.003 (Zn) ≤0.003 (Fe) ≤0.004 (P) ≤0.002 (Bi) ≤0.001 (Sb) ≤0.002 (S) ≤0.004 (Sn) ≤0.002 (Ni) ≤0.002 (As) ≤0.002 (O) ≤0.002 Impurities% ≤0.03 6. Application of Oxygen free copper strip Oxygen-free copper products are mainly used in the electronics industry and electric vacuum devices and instruments and meters.