It is gray in color. It is not resistant to chemical effects. It is important in the coating of metals as it protects other metals by corroding itself.
PHYSICAL PROPERTIES
Composition (%) Pb:0.10 (max) Rest:Zn
Specific Gravity (Kg/dm³) 7.141
Melting Point (°C) 420
Thermal Conductivity (18 °C), (Kcal/Sal/Cm/°C) 92.6
Coefficient of Expansion (°C)x10-6 Longitudinal 32.5 Transverse 23.0
Heating Temperature (20-100°C) (Kcal/Kg/°C) 0.094
MECHANICAL SPECIFICATIONS
Tensile Strength (Kg/cm²) 1400
Elongation (at 5cm) (%) 60
Hardness 38
Endurance Limit (Kg/cm°) 175.8
PROCESSING FEATURES
Hot Operating Temperature (°C) 130-275
Ingot Casting Temperature (°C) 435-485
Forms that are good for processing: Ingot, bar, plate, wire, rolled sheets and strips. Areas of Use: Capsules, nameplates, drawn battery poles, drawn and plastered parts that do not require tension, roof covering, zincograph and lithograph works.
Alloys of Zinc Brass, zamak-1, zamak-3, zamak-5
