OXIGEN FREE COPPER WIRE ROD ТU 1733-005-05774969-95

Copper wire rod (MKLB grade, classes 1 and 2) is produced by UPCAST PROCESS which eliminates the interaction of the product with oxygen, no subsequent deformation.

The rod has a uniform diameter of 8.0 mm. The standard deviations of the rod diameter and its ovality do not exceed 0.4 mm.

There are no cracks or impurities on the rod surface.

Minor surface defects (i.e., dents, marks, scratches, burrs, roller traces) with maximum deviation for diameter 0.3 mm are allowed.

The product does not exhibit surface oxidation. Decrease of the rod specimen weight after etching in 8-10% acid solution at 75± 5 °C for 15 minutes does not exceed 0.01%.

The rod chemical composition corresponds to M00k grade, GOST 859-78, oxygen content less than 0.0015%.

The rod tensile strength is 160 N/mm² (min.) with minimum elongation of 35% for class 1 and 30% for class 2. No tests for other mechanical parameters such a number of torsions and consequent untwists, ability to drawing, etc needed. Stability of casting process and strict control of copper chemical composition is a guarantee for the relevant properties of the copper rod.

The specific electrical resistance of the annealed rod does not exceed
1.724x10^-8 Om.m at 20°C.

The Plant supplies the copper wire rod in 100-3500kg coils (usually
2000 kg). The coils are strapped with four steel strips and are delivered on wooden pallets. The coils are covered with polymeric thermoshrinkable film, when required.

Quality System for copper wire rod manufacture has been certified by both Russian GOSTSTANDART and German RW TÜV according to ISO 9002.