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Form

Copper and alloys

ZA 40 U3 PIECES

Castings techniques

  • Sand moulding:
    • One-off parts, small and medium runs.
  • Shell moulding:
    • medium and large production runs.

Some applications:

Manufacture of bushes for all industries.
Mines and metal industry, stone and cement industry. Press manufacture.
Automobile manufacture. Crane manufacture. Building construction machines.

Technical and physical characteristics

Zinc-Aluminium-Copper Alloy

  • Density: 4,4.
  • Tensile strength: 26 to 32 MPa/mm².
  • Breaking elongation: 1 to 4%.
  • Brinell-Hardness: 90 to 130 HBS.
  • Elasticity limit: 19 à 23 Mpa/mm².
  • Compressive strength: 50 Mpa/mm².
  • Endurance strength: 3 à 4 Mpa/mm².
  • Electrical conductivity: 16,6 m/Ohm/ mm².
  • Electrical resistance: 0,06 Ohm mm²/m.
  • Thermal conductivity:
    0,24 à 0,26 cal/cm sec °C.
  • Linear dilatation coefficient for 20 to 100°C: 22 à 24 x 106
  • Magnetic permeability:
    1,01 0,4 x 106 WB/mE / A/m
  • Skrinkage: environ 1,3%.
  • Max. PV with continuous load:
    approx. 400 kgm / cm2 sec
  • Maximum operating temperature: 150°C.

Comparison chart

Technical values for cast bronze (Standard DIN 1705).

Alloy UE14 UE13 ZA40U3
Brinell-Hardness 85 to 115 80 to 95 90 to 130
Tensile strength 20 to 25 24 to 28 25 to 32
Breaking elongation 3 to 5 8 to 15 1 to 4
Density 8,6 8,6 4,4