... , copper and aluminum.The various sizes will meet your requirements.Square type: 40x40x12.5mm, 50x50x12.5mm, 60x60x12.5mm, 70x70x12.5mm.Round ... type: Dia.40mm, Dia.50mm, Dia.60mm, Dia.70mm, Dia.80mm, ... (×10-6/°C)Softening temperature(°C)Compressive Strength (MPa)Cordierite37Round, square and delthyrium2~3≤1.81390≥12Mullite462~3≤4.01550≥15Alundum ...