certal

Rolled plate
Certal
EN AW 7022

Certal is designed to combine the best mechanical properties with excellent workability and optimal dimensional stability.

This alloy was created to meet the mould manufacturers' demand for a material that would be capable of offering the uncompromising hardness and workability required for the construction of moulds and equipment.

The typical applications include moulds for thermoplastic blow and injection moulding.

technical characteristics

Surface treatments

  • Technical anodisation: good
  • Decorative anodisation: sufficient
  • Polishing: excellent
  • Hard chrome plating: good
  • Chemical nickel plating: good
  • Chemical photoengraving: optimal

Workability: excellent

 

Weldability

  • TIG/MIG: possible
  • Filler metal: AA 5183 / AA 5356
  • For resistance: good

Availability

Certal is available in the hardened, stretched, and tempered state (T651) in thicknesses ranging from 90 to 200 mm.

  • Rolled plates
  • Extruded round bars

General information

Chemical composition (%weight) 

SiFeCuMnMgCrZnTi+Zr
min0.500.102.600.104.30
max0.500.501.000.403.700.305.200.20


Physical properties (state T651, indicative values)

1 MPa = 1 N/mm2 = 0.10197 kg/mm2

  • Specific weight: 2.76 g/cm3
  • Elastic modulus: 72000 MPa
  • Thermal conductivity: 120-150 W/m K
  • Electrical conductivity: 18-22•106 S/m
  • Thermal linear expansion coefficient: (20°-100°C): 23.6·10-6 K-1

 

mechanical properties

Minimum guaranteed values (state T651)

 

Typical mechanical values for different thicknesses

Thickness (from…to) [mm]Rm [MPa]Rp0.2 [MPa]A50 [%]HB
90 - 2005454907165

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services

We offer a custom saw or belt cutting service. We also offer the following services:

  • Creation of profiles and parts using water cutting technology;
  • Rotating circular saw cutting and finishing using CNC technology;
  • Ring and flange cutting;
  • PVC cutting on 1 or 2 sides.

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