Because of an additional 1% copper, #5 zinc alloy has higher hardness and strength than #3 but less ductility which may affect formability. #5 has an excellent castability and a better creep resistance (deformation under high temperature stress). It is also good for electroplating, surface finishing and machining.

Applications

Sports equipment, industrial parts, zippers

Typical Properties

Typical Physical Properties:

  • Density (g/cm3):  6.6
  • Melting Range (oC):  380- 386
  • Electrical Conductivity (% IACS):  26
  • Thermal Conductivity (100oC, W/m  ‧  K):  108.9
  • Specific Heat (J/kg  ‧  K):  419
  • Die Shrinkage (mm/mm):  0.007
  • Coefficient of Thermal Expansion (20-100oC, μm/m/oC):  27.4

Typical Mechanical Properties:

  • Ultimate Tensile Strength (MPa):  328
  • Impact Strength (J):  65
  • Elongation (%):  7
  • Hardness (HB):  91
  • Shear Strength (MPa):  262
  • Yield Strength (0.2%, MPa):  228
  • Fatigue Strength (5 x 108 cycles, MPa):  57
  • Compressive Yield Strength (0.1%, MPa):  600

Compliance with International Standards

RoHS, ISO 301, China GB/T 8738, Europe EN 1774, Japan JISH 2201, U.S. ASTM B240

Packaging

  • Average Mass per Slab (kg):  10
  • Slab Dimensions (mm):  480 x 110 x 45
  • Average Mass per Bundle (kg):  1,100 ± 50
  • Bundle Dimensions (mm):  460 x 960 x 610
  • Number per Bundle:  112

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