Special application(high-grade steel) Machined graphite components Material Characteristics Chart Grade Density Hardness Bending strenght Yung's mouldulus Electrical Resistance Themal Conductivity Themal Expansion (20-200°C) Porosity (open) Grain Size Permeability (air at 20°C) Ash Value g/cm3 H.S. N/mm2 Km/mm2 um W.m-1.k-1 x10-6/k % um x10-2cm2/sec Max.% HG-43 1.72 55 45 10.5 12 90 2.9 15 15 15 <0.1 R-4550 1.83 65 60 11.5 13 100 4.0 10 10 4 <0.1 R-4340H 1.74 60 50 16.0 40 90 5.0 15 15 15 <0.1 HG-347 1.85 58 62 10.8 11 116 5.5 9 12 12 <0.2 HG-348 1.92 68 65 12.3 10 128 5.5 8 10 10 <0.2

| Mechanical Application | Carbon Brushes Application | Electronic Application |
| E.D.M. Application | Pump Seal Application | Continuous Casting Application | Steam/Hot Coal Pressure Joint |