Large Size Graphite Block It is usually vibration-molded, carbonized or graphitized under precise technical control, and machined to specific shapes for various purposes. Applications: Casting molds for railroad wheels; heat exchangers for chemical industries; electrodes and linings in some industrial furnaces (such as graphitization furnace); cathodes in aluminum electrolytic cells; etc. Programmable properties: High thermal and chemical resistance. Good thermal conductivity. Low coefficient of thermal expansion. Minimal wettability to molten metals. Typical Sizes * Diameter (mm) 630 - 1420 Length(mm) 400 - 800 400x400x1800,500x200x1800,500x500x1800,550x250x1800,550x550x1800, 650x400x1800 * Other dimensions are available on request. Specifications of Graphite Block Bulk Density >= 1.72 g/cc Specific Resistance <= 8.5 micro ohm. M Compressive Strength >= 30 MPa Bending Strength >= 14 MPa C. T. E.(100~600 degree) <= 2.5x10-6/degree Maximum Grain Size 0.8 mm Note: The values mentioned in this table are only for reference and not committed to any contract