DA20 Performance: Specific Gravity: 14.9 Hardness: 91.0HRA, 1560HV bending strength: 2650 Compressive strength: 5200 Fracture toughness: 13 Young's modulus: 620 Poisson's ratio factor: 0.21 Thermal expansion coefficient: 5.0 Thermal conductivity: 79 (0.19) Uses: high wear resistance, suitable for powder molding, precision punching, stretching tungsten steel Applications: 1. kinds of thin / shaving pieces / lead frame / electronic / spring / steel stamping dies. Chip packaging mold inserts, 2. Guide sleeve / Pins / putter drawing / forming die rollers / carbide Indian film, complex shapes for fine stamping, 3 connectors, IC packaging mold, silicon and Mixed stamping cold rolled sheet.