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Empo Aluminium
Product Details
EmpAL 7021 EmpAL 7021

EmpAL 7021 aluminium plates provide perfect smoothness and visual quality for surface of the finished products thanks to its excellent polishing property. Its high hardness and mechanical resistance values provide durable and stable operation for machine parts that are exposed to stress.

General Properties

  • Six sides sawed surface
  • Stress relieved
  • Excellent homogeneous 
  • Very good machinability
  • High strength
  • High durability
  • Thickness up to 600mm

Typical Fields of Application

  • Moulds for plastic injections
  • Low press foaming, paper fibre and blow moulds
  • Moulds for medical products 
  • Packaging machines
  • High stressed machine components
  • Components requiring high strength, durability and lightness

For more information → Technical Data Sheet

CHARACTERISTICS OF ALLOY
Alloy EN AW 7021 (AlZn5,5Mn1,5), DIN EN 573-3 / 3.4335
Type of Alloy Heat treatable
Temper T6
PROCESSING CHARACTERISTICS
Machinability Very Good
Dimensional Stability Very Good
Weldability (Gas/TIG/MIG) Inapplicable/Poor/Moderate
Anodizing (Not Decorative) Good
Polishability Very Good
Erodibility Very Good
Corrosion Resistance (Sea Water/Weather) Poor/Moderate
Contact With Food No (according to EN 602)
MECHANICAL PROPERTIES
Yield Strength Rp0,2 280-320 MPa
Tensile Strength Rm 310-350 MPa
Elongation A50 3-4 %
Brinell Hardness 125-135 HB
PHYSICAL PROPERTIES
Density 2,78 g/cm³
Modul of Elasticity 72,000 N/mm²
Electrical Conductivity 19-23 m/Ω.mm²
Thermal Conductivity 125-155 W/m.K
Coefficient of Thermal Expansion 23,0 K-1.10-6
Spesific Heat Capacity 875 J/kg.K
TOLERANCES
Surface Roughness Ra 5-7 µm
Thickness (mm) +/- 0,3
Width & Length (mm) +/- 10
STANDART STOCK SIZES
Width x Length (mm) (1520x4020)  (2000x4000)
Thickness 10-100 (mm) 10 12 15 18 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
Thickness 110-200 (mm) 110 120 130 140 150 160 170 180 190 200
Thickness 200-600 (mm) Upon request
For non standart sizes please contact us.
EmpAL 7021 Brochure
PDF
1.84 Mb.