Copper Clad Steel Grounding Round Wire/Copper-Plated Steel Round Wire/Plated Round Steel

Main features

1. Composition: The center is a steel core, the outer layer is a high-purity copper layer, and the proportion of copper reaches 20-55%.

2. Mechanical and physical properties

(1) Tensile test: tensile strength >300MPa.

(2) Bending test: Copper-clad steel rod used for vertical ground electrode, tighten one end of the sample on the clamp or jaw

Use a force perpendicular to the sample at a distance 40 times the sample diameter from the fixture, bend it at 30° 40 times, and the copper layer will not

Cracks or peeling.

(3) After rolling the teeth of the rod, the outer surface of the tooth tips and roots will be covered with copper layers, without cracks or exposed steel.

(4) Current impulse test 200KA, 8/20us impulse current test, there is no obvious change in the sample.

(5) Corrosion resistance: Take a section of continuous-cast copper-clad steel and cut it longitudinally to expose the steel core, and bury it in the atmosphere or underground.

According to the test, the steel core showed corrosion after 365 days, but no corrosion was found at the joint between copper and steel.