EN AW-7020

square bar

[309_004]
  • Form square bar
  • Material Aluminum
  • Material EN AW-7020
  • Material chemically EN 573-3 Al Zn4,5 Mg1
  • DIN 3.4335

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[309_004]
[309_004]

Areas of application

Railed vehicles

Military technology

Features of this material

  • Curable
  • Good welding properties
  • High strength

Features of this material

  • High fatigue strength

Information about the material

  • Aviation
    Aviation No
  • Chemical specifications
    Cr (from) 0.1
    Cr (to) 0.35
    Cu (to) 0.2
    Fe (to) 0.4
    Mg (from) 1
    Mg (to) 1.4
    Mn (from) 0.05
    Mn (to) 0.5
    Other 0,05
    Rest Aluminium
    Si (from) 0
    Si (to) 0.35
    Ti footnote reference a)
    Total 0,15
    Zn (from) 4
    Zn (to) 5
    Zr footnote reference a)

    0,08 – 0,25 Zr + Ti

  • Chemical surface treatment
    Anodise - decorative 3
    Anodising - protective anodising 2
    Chromating 2
    Cleaning / degreasing 2
    Hard anodising 2
    Phosphating 2
    Pickling 2
    Shining 4.5
  • Corrosion resistance
    Normal atmosphere 3
    Seawater atmosphere 4
  • Cutting
    Laser cutting 3
    Plasma cutting 3
    Sawing 2
    Shear cutting 2
    Waterjet cutting 1
  • Food industry
    suitable according to DIN EN 602 No
  • Forming
    Bending 2
    Bending delivery conditions O
    Deep drawing (conditional) 2
    Deep drawing conditions O
    Drop forging 2
    Extruding 2
    Impact extrusion 3
    Impact extrusion conditions O
    Open die forging 2
    Press 3
    Press conditions O
    Upsetting (Conditional) 2
    Upsetting conditions O
  • Heat treatment - Softannealing
    Heating time max. 3 h
    Heating time min. 2 h
    Annealing temperature max. 420 °C
    Annealing temperature min. 400 °C
    Cooling conditions ≤ 30°C/h to 250°C + 3 – 5 hours
    hold time, below 250°C in air
  • Heat treatment - Solution annealing
    Quenching air
    Solution annealing max. 485 °C
    Solution annealing min. 460 °C
  • Machining / Machinability
    Eroding 1
    Etching 2
    hardened 2
    Photo etching 2
    soft annealed 3
  • Material
    Colorcode Hellrosa (RAL 3015)
    Material chemically EN 573-3 Al Zn4,5 Mg1
    DIN 3.4335
    DIN (old designation) Al Zn4,5 Mg1
    France AFNOR A-Z5G
    Italy UNI 9007/1
    Norway 17,410
    Spain L-3741
    Sweden 144,425
    United Kingdom BS H17
  • Mechanical surface treatment
    Blasting 1
    Brushing 2
    Dessinating 1
    Grinding 2
  • Metallic coating
    Galvanising 2
    Nickel coating 2
    Thermal spraying 4
  • Organic coating
    Enamelling 5
    Laminating 2
    Painting / Coating 2
  • physical properties
    Coefficient of thermal expansion from 20 to 100°C 23.1 K⁻¹10⁻⁶
    Coefficient of thermal expansion from 20 to 200°C 24 K⁻¹10⁻⁶
    Coefficient of thermal expansion from 20 to 300°C 25 K⁻¹10⁻⁶
    Coefficient of thermal expansion from -50 to 20°C 21.4 K⁻¹10⁻⁶
    Density 2.77 g/cm³
    Electrical conductivity max. 23 m/Ω*mm²
    Electrical conductivity min. 19 m/Ω*mm²
    Modulus of elasticity 70 GPa
    Shear modulus 26.4 GPa
    Specific heat 875 J/(kg·K)
    Thermal conductivity max. 160 W/m*K
    Thermal conductivity min. 130 W/m*K
  • Soldering
    Brazing 5
    Brazing with flux 5
    Friction soldering 3
    Soft soldering 5
    Soft soldering with flux 5
  • Welding
    Friction stir welding 2
    Friction welding 2
    Gas 3
    Laser 2
    MIG 1
    Resistance spot welding 5
    TIG 2
    welding additives

    • SG-Al Mg4,5 Mn
    • SG-Al Mg4,5 Mn Zr
    • SG-Al Mg5

  • Aviation
    Aviation No
  • Chemical specifications
    Cr (from) 0.1
    Cr (to) 0.35
    Cu (to) 0.2
    Fe (to) 0.4
    Mg (from) 1
    Mg (to) 1.4
    Mn (from) 0.05
    Mn (to) 0.5
    Other 0,05
    Rest Aluminium
    Si (from) 0
    Si (to) 0.35
    Ti footnote reference a)
    Total 0,15
    Zn (from) 4
    Zn (to) 5
    Zr footnote reference a)
    0,08 – 0,25 Zr + Ti
  • Chemical surface treatment
    Anodise - decorative 3
    Anodising - protective anodising 2
    Chromating 2
    Cleaning / degreasing 2
    Hard anodising 2
    Phosphating 2
    Pickling 2
    Shining 4.5
  • Corrosion resistance
    Normal atmosphere 3
    Seawater atmosphere 4
  • Cutting
    Laser cutting 3
    Plasma cutting 3
    Sawing 2
    Shear cutting 2
    Waterjet cutting 1
  • Food industry
    suitable according to DIN EN 602 No
  • Forming
    Bending 2
    Bending delivery conditions O
    Deep drawing (conditional) 2
    Deep drawing conditions O
    Drop forging 2
    Extruding 2
    Impact extrusion 3
    Impact extrusion conditions O
    Open die forging 2
    Press 3
    Press conditions O
    Upsetting (Conditional) 2
    Upsetting conditions O
  • Heat treatment - Softannealing
    Heating time max. 3 h
    Heating time min. 2 h
    Annealing temperature max. 420 °C
    Annealing temperature min. 400 °C
    Cooling conditions ≤ 30°C/h bis 250°C + 3 – 5 Stunden
    Haltezeit, unterhalb 250°C an der Luft
  • Heat treatment - Solution annealing
    Quenching Luft
    Solution annealing max. 485 °C
    Solution annealing min. 460 °C
  • Machining / Machinability
    Eroding 1
    Etching 2
    hardened 2
    Photo etching 2
    soft annealed 3
  • Material
    Colorcode Hellrosa (RAL 3015)
    Material chemically EN 573-3 Al Zn4,5 Mg1
    DIN 3.4335
    DIN (old designation) Al Zn4,5 Mg1
    France AFNOR A-Z5G
    Italy UNI 9007/1
    Norway 17,410
    Spain L-3741
    Sweden 144,425
    United Kingdom BS H17
  • Mechanical surface treatment
    Blasting 1
    Brushing 2
    Dessinating 1
    Grinding 2
  • Metallic coating
    Galvanising 2
    Nickel coating 2
    Thermal spraying 4
  • Organic coating
    Enamelling 5
    Laminating 2
    Painting / Coating 2
  • physical properties
    Coefficient of thermal expansion from 20 to 100°C 23.1 K⁻¹10⁻⁶
    Coefficient of thermal expansion from 20 to 200°C 24 K⁻¹10⁻⁶
    Coefficient of thermal expansion from 20 to 300°C 25 K⁻¹10⁻⁶
    Coefficient of thermal expansion from -50 to 20°C 21.4 K⁻¹10⁻⁶
    Density 2.77 g/cm³
    Electrical conductivity max. 23 m/Ω*mm²
    Electrical conductivity min. 19 m/Ω*mm²
    Modulus of elasticity 70 GPa
    Shear modulus 26.4 GPa
    Specific heat 875 J/(kg·K)
    Thermal conductivity max. 160 W/m*K
    Thermal conductivity min. 130 W/m*K
  • Soldering
    Brazing 5
    Brazing with flux 5
    Friction soldering 3
    Soft soldering 5
    Soft soldering with flux 5
  • Welding
    Friction stir welding 2
    Friction welding 2
    Gas 3
    Laser 2
    MIG 1
    Resistance spot welding 5
    TIG 2
    welding additives

    • SG-Al Mg4,5 Mn
    • SG-Al Mg4,5 Mn Zr
    • SG-Al Mg5

  • Aviation
    Aviation No
  • Chemical specifications
    Cr (from) 0.1
    Cr (to) 0.35
    Cu (to) 0.2
    Fe (to) 0.4
    Mg (from) 1
    Mg (to) 1.4
    Mn (from) 0.05
    Mn (to) 0.5
    Other 0,05
    Rest Aluminium
    Si (from) 0
    Si (to) 0.35
    Ti footnote reference a)
    Total 0,15
    Zn (from) 4
    Zn (to) 5
    Zr footnote reference a)
    0,08 – 0,25 Zr + Ti
  • Chemical surface treatment
    Anodise - decorative 3
    Anodising - protective anodising 2
    Chromating 2
    Cleaning / degreasing 2
    Hard anodising 2
    Phosphating 2
    Pickling 2
    Shining 4.5
  • Corrosion resistance
    Normal atmosphere 3
    Seawater atmosphere 4
  • Cutting
    Laser cutting 3
    Plasma cutting 3
    Sawing 2
    Shear cutting 2
    Waterjet cutting 1
  • Food industry
    suitable according to DIN EN 602 No
  • Forming
    Bending 2
    Bending delivery conditions O
    Deep drawing (conditional) 2
    Deep drawing conditions O
    Drop forging 2
    Extruding 2
    Impact extrusion 3
    Impact extrusion conditions O
    Open die forging 2
    Press 3
    Press conditions O
    Upsetting (Conditional) 2
    Upsetting conditions O
  • Heat treatment - Softannealing
    Heating time max. 3 h
    Heating time min. 2 h
    Annealing temperature max. 420 °C
    Annealing temperature min. 400 °C
    Cooling conditions ≤ 30°C/h bis 250°C + 3 – 5 Stunden
    Haltezeit, unterhalb 250°C an der Luft
  • Heat treatment - Solution annealing
    Quenching Luft
    Solution annealing max. 485 °C
    Solution annealing min. 460 °C
  • Machining / Machinability
    Eroding 1
    Etching 2
    hardened 2
    Photo etching 2
    soft annealed 3
  • Material
    Colorcode Hellrosa (RAL 3015)
    Material chemically EN 573-3 Al Zn4,5 Mg1
    DIN 3.4335
    DIN (old designation) Al Zn4,5 Mg1
    France AFNOR A-Z5G
    Italy UNI 9007/1
    Norway 17,410
    Spain L-3741
    Sweden 144,425
    United Kingdom BS H17
  • Mechanical surface treatment
    Blasting 1
    Brushing 2
    Dessinating 1
    Grinding 2
  • Metallic coating
    Galvanising 2
    Nickel coating 2
    Thermal spraying 4
  • Organic coating
    Enamelling 5
    Laminating 2
    Painting / Coating 2
  • physical properties
    Coefficient of thermal expansion from 20 to 100°C 23.1 K⁻¹10⁻⁶
    Coefficient of thermal expansion from 20 to 200°C 24 K⁻¹10⁻⁶
    Coefficient of thermal expansion from 20 to 300°C 25 K⁻¹10⁻⁶
    Coefficient of thermal expansion from -50 to 20°C 21.4 K⁻¹10⁻⁶
    Density 2.77 g/cm³
    Electrical conductivity max. 23 m/Ω*mm²
    Electrical conductivity min. 19 m/Ω*mm²
    Modulus of elasticity 70 GPa
    Shear modulus 26.4 GPa
    Specific heat 875 J/(kg·K)
    Thermal conductivity max. 160 W/m*K
    Thermal conductivity min. 130 W/m*K
  • Soldering
    Brazing 5
    Brazing with flux 5
    Friction soldering 3
    Soft soldering 5
    Soft soldering with flux 5
  • Welding
    Friction stir welding 2
    Friction welding 2
    Gas 3
    Laser 2
    MIG 1
    Resistance spot welding 5
    TIG 2
    welding additives

    • SG-Al Mg4,5 Mn
    • SG-Al Mg4,5 Mn Zr
    • SG-Al Mg5

  • Aviation
    Aviation No
  • Chemical specifications
    Cr (from) 0.1
    Cr (to) 0.35
    Cu (to) 0.2
    Fe (to) 0.4
    Mg (from) 1
    Mg (to) 1.4
    Mn (from) 0.05
    Mn (to) 0.5
    Other 0,05
    Rest Aluminium
    Si (from) 0
    Si (to) 0.35
    Ti footnote reference a)
    Total 0,15
    Zn (from) 4
    Zn (to) 5
    Zr footnote reference a)
    0,08 – 0,25 Zr + Ti
  • Chemical surface treatment
    Anodise - decorative 3
    Anodising - protective anodising 2
    Chromating 2
    Cleaning / degreasing 2
    Hard anodising 2
    Phosphating 2
    Pickling 2
    Shining 4.5
  • Corrosion resistance
    Normal atmosphere 3
    Seawater atmosphere 4
  • Cutting
    Laser cutting 3
    Plasma cutting 3
    Sawing 2
    Shear cutting 2
    Waterjet cutting 1
  • Food industry
    suitable according to DIN EN 602 No
  • Forming
    Bending 2
    Bending delivery conditions O
    Deep drawing (conditional) 2
    Deep drawing conditions O
    Drop forging 2
    Extruding 2
    Impact extrusion 3
    Impact extrusion conditions O
    Open die forging 2
    Press 3
    Press conditions O
    Upsetting (Conditional) 2
    Upsetting conditions O
  • Heat treatment - Softannealing
    Heating time max. 3 h
    Heating time min. 2 h
    Annealing temperature max. 420 °C
    Annealing temperature min. 400 °C
    Cooling conditions ≤ 30°C/h bis 250°C + 3 – 5 Stunden
    Haltezeit, unterhalb 250°C an der Luft
  • Heat treatment - Solution annealing
    Quenching Luft
    Solution annealing max. 485 °C
    Solution annealing min. 460 °C
  • Machining / Machinability
    Eroding 1
    Etching 2
    hardened 2
    Photo etching 2
    soft annealed 3
  • Material
    Colorcode Hellrosa (RAL 3015)
    Material chemically EN 573-3 Al Zn4,5 Mg1
    DIN 3.4335
    DIN (old designation) Al Zn4,5 Mg1
    France AFNOR A-Z5G
    Italy UNI 9007/1
    Norway 17,410
    Spain L-3741
    Sweden 144,425
    United Kingdom BS H17
  • Mechanical surface treatment
    Blasting 1
    Brushing 2
    Dessinating 1
    Grinding 2
  • Metallic coating
    Galvanising 2
    Nickel coating 2
    Thermal spraying 4
  • Organic coating
    Enamelling 5
    Laminating 2
    Painting / Coating 2
  • physical properties
    Coefficient of thermal expansion from 20 to 100°C 23.1 K⁻¹10⁻⁶
    Coefficient of thermal expansion from 20 to 200°C 24 K⁻¹10⁻⁶
    Coefficient of thermal expansion from 20 to 300°C 25 K⁻¹10⁻⁶
    Coefficient of thermal expansion from -50 to 20°C 21.4 K⁻¹10⁻⁶
    Density 2.77 g/cm³
    Electrical conductivity max. 23 m/Ω*mm²
    Electrical conductivity min. 19 m/Ω*mm²
    Modulus of elasticity 70 GPa
    Shear modulus 26.4 GPa
    Specific heat 875 J/(kg·K)
    Thermal conductivity max. 160 W/m*K
    Thermal conductivity min. 130 W/m*K
  • Soldering
    Brazing 5
    Brazing with flux 5
    Friction soldering 3
    Soft soldering 5
    Soft soldering with flux 5
  • Welding
    Friction stir welding 2
    Friction welding 2
    Gas 3
    Laser 2
    MIG 1
    Resistance spot welding 5
    TIG 2
    welding additives

    • SG-Al Mg4,5 Mn
    • SG-Al Mg4,5 Mn Zr
    • SG-Al Mg5

1 very good
2 good
3 moderate
4 poor
5 unsuited
0 Not specified