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UNIDAL AA7019

circular - machined surface

A technical illustration of the product with dimensions of the material UNIDAL AA7019 from the material Aluminum in the shape circular - machined surface
  • Form circular - machined surface
  • Material Aluminum
  • Material UNIDAL AA7019
  • Material chemically EN 573-3 Al Zn4 Mg2 Mn
  • DIN 3.4325
An image of the material UNIDAL AA7019 from the material Aluminum in the shape circular - machined surface
A technical illustration of the product of the material UNIDAL AA7019 from the material Aluminum in the shape circular - machined surface

Information about the material

  • Aviation
    Aviation No
  • Chemical specifications
    Be (from) 0
    Be (to) 0
    Cr (from) 0.1
    Cr (to) 0.2
    Cu (to) 0.2
    Fe (to) 0.45
    Mg (from) 1.5
    Mg (to) 2.5
    Mn (from) 0.15
    Mn (to) 0.5
    Rest Aluminium
    Si (to) 0.35
    Ti (from) 0.1
    Ti (to) 0.4
    Zn (from) 3.5
    Zn (to) 4.5
    Ti + Cr 0,10 – 0,40
  • Chemical surface treatment
    Anodise - decorative 2
    Anodising - protective anodising 1
    Chromating 2
    Cleaning / degreasing 2
    Hard anodising 2
    Phosphating 2
    Pickling 2
    Shining 4.5
  • Corrosion resistance
    Normal atmosphere 2
    Seawater atmosphere 3
  • Cutting
    Laser cutting 3
    Plasma cutting 2
    Sawing 1
    Shear cutting 2
    Waterjet cutting 1
  • Food industry
    suitable according to DIN EN 602 No
  • Forming
    Bending 5
    Deep drawing (conditional) 5
    Impact extrusion 5
    Press 5
    Upsetting (Conditional) 5
  • Heat treatment - Softannealing
    Heating time min. 0.5 h
    Annealing temperature min. 350 °C
    Cooling conditions ≤ 30°C/h bis 250°C,
    unterhalb 250°C an der Luft
  • Machining / Machinability
    dimensional stability 1
    Eroding 1
    Etching 2
    hardened 1
    Photo etching 1
  • Material
    Material chemically EN 573-3 Al Zn4 Mg2 Mn
    DIN 3.4325
    DIN (old designation) Al Zn4,5 Mg1
    France AFNOR -
    Italy UNI -
    Norway -
    Spain -
    Sweden -
    United Kingdom BS -
  • Mechanical surface treatment
    Blasting 1
    Brushing 2
    Grinding 2
    Polishing 1
  • Metallic coating
    Galvanising 2
    Nickel coating 2
    Thermal spraying 4
  • Organic coating
    Enamelling 5
    Laminating 2
    Painting / Coating 1
  • physical properties
    Coefficient of thermal expansion from 20 to 100°C 23.6 K⁻¹10⁻⁶
    Density 2.75 g/cm³
    Electrical conductivity max. 23 m/Ω*mm²
    Electrical conductivity min. 19 m/Ω*mm²
    Modulus of elasticity 71 GPa
    Thermal conductivity max. 150 W/m*K
    Thermal conductivity min. 135 W/m*K
  • Soldering
    Brazing 5
    Brazing with flux 5
    Soft soldering 5
    Soft soldering with flux 4
  • Welding
    Friction stir welding 2
    Friction welding 2
    Laser 2
    MIG 2
    Plasma 2
    Resistance spot welding 2
    TIG 2
    welding additives

    • S-Al 5183
    • S-Al 5356
  • Aviation
    Aviation No
    Aviation No
  • Chemical specifications
    Be (from) 0
    Be (from) 0
    Be (to) 0
    Be (to) 0
    Cr (from) 0.1
    Cr (from) 0.1
    Cr (to) 0.2
    Cr (to) 0.2
    Cu (to) 0.2
    Cu (to) 0.2
    Fe (to) 0.45
    Fe (to) 0.45
    Mg (from) 1.5
    Mg (from) 1.5
    Mg (to) 2.5
    Mg (to) 2.5
    Mn (from) 0.15
    Mn (from) 0.15
    Mn (to) 0.5
    Mn (to) 0.5
    Rest Aluminium
    Rest Aluminium
    Si (to) 0.35
    Si (to) 0.35
    Ti (from) 0.1
    Ti (from) 0.1
    Ti (to) 0.4
    Ti (to) 0.4
    Zn (from) 3.5
    Zn (from) 3.5
    Zn (to) 4.5
    Zn (to) 4.5
    Ti + Cr 0,10 – 0,40
  • Chemical surface treatment
    Anodise - decorative 2
    Anodise - decorative 2
    Anodising - protective anodising 1
    Anodising - protective anodising 1
    Chromating 2
    Chromating 2
    Cleaning / degreasing 2
    Cleaning / degreasing 2
    Hard anodising 2
    Hard anodising 2
    Phosphating 2
    Phosphating 2
    Pickling 2
    Pickling 2
    Shining 4.5
    Shining 4.5
  • Corrosion resistance
    Normal atmosphere 2
    Normal atmosphere 2
    Seawater atmosphere 3
    Seawater atmosphere 3
  • Cutting
    Laser cutting 3
    Laser cutting 3
    Plasma cutting 2
    Plasma cutting 2
    Sawing 1
    Sawing 1
    Shear cutting 2
    Shear cutting 2
    Waterjet cutting 1
    Waterjet cutting 1
  • Food industry
    suitable according to DIN EN 602 No
    suitable according to DIN EN 602 No
  • Forming
    Bending 5
    Bending 5
    Deep drawing (conditional) 5
    Deep drawing (conditional) 5
    Impact extrusion 5
    Impact extrusion 5
    Press 5
    Press 5
    Upsetting (Conditional) 5
    Upsetting (Conditional) 5
  • Heat treatment - Softannealing
    Heating time min. 0.5 h
    Heating time min. 0.5 h
    Annealing temperature min. 350 °C
    Annealing temperature min. 350 °C
    Cooling conditions ≤ 30°C/h bis 250°C,
    unterhalb 250°C an der Luft
    Cooling conditions ≤ 30°C/h bis 250°C,
    unterhalb 250°C an der Luft
  • Machining / Machinability
    dimensional stability 1
    dimensional stability 1
    Eroding 1
    Eroding 1
    Etching 2
    Etching 2
    hardened 1
    hardened 1
    Photo etching 1
    Photo etching 1
  • Material
    Material chemically EN 573-3 Al Zn4 Mg2 Mn
    Material chemically EN 573-3 Al Zn4 Mg2 Mn
    DIN 3.4325
    DIN 3.4325
    DIN (old designation) Al Zn4,5 Mg1
    DIN (old designation) Al Zn4,5 Mg1
    France AFNOR -
    France AFNOR -
    Italy UNI -
    Italy UNI -
    Norway -
    Norway -
    Spain -
    Spain -
    Sweden -
    Sweden -
    United Kingdom BS -
    United Kingdom BS -
  • Mechanical surface treatment
    Blasting 1
    Blasting 1
    Brushing 2
    Brushing 2
    Grinding 2
    Grinding 2
    Polishing 1
    Polishing 1
  • Metallic coating
    Galvanising 2
    Galvanising 2
    Nickel coating 2
    Nickel coating 2
    Thermal spraying 4
    Thermal spraying 4
  • Organic coating
    Enamelling 5
    Enamelling 5
    Laminating 2
    Laminating 2
    Painting / Coating 1
    Painting / Coating 1
  • physical properties
    Coefficient of thermal expansion from 20 to 100°C 23.6 K⁻¹10⁻⁶
    Coefficient of thermal expansion from 20 to 100°C 23.6 K⁻¹10⁻⁶
    Density 2.75 g/cm³
    Density 2.75 g/cm³
    Electrical conductivity max. 23 m/Ω*mm²
    Electrical conductivity max. 23 m/Ω*mm²
    Electrical conductivity min. 19 m/Ω*mm²
    Electrical conductivity min. 19 m/Ω*mm²
    Modulus of elasticity 71 GPa
    Modulus of elasticity 71 GPa
    Thermal conductivity max. 150 W/m*K
    Thermal conductivity max. 150 W/m*K
    Thermal conductivity min. 135 W/m*K
    Thermal conductivity min. 135 W/m*K
  • Soldering
    Brazing 5
    Brazing 5
    Brazing with flux 5
    Brazing with flux 5
    Soft soldering 5
    Soft soldering 5
    Soft soldering with flux 4
    Soft soldering with flux 4
  • Welding
    Friction stir welding 2
    Friction stir welding 2
    Friction welding 2
    Friction welding 2
    Laser 2
    Laser 2
    MIG 2
    MIG 2
    Plasma 2
    Plasma 2
    Resistance spot welding 2
    Resistance spot welding 2
    TIG 2
    TIG 2
    welding additives

    • S-Al 5183
    • S-Al 5356
    welding additives

    • S-Al 5183
    • S-Al 5356
  • Aviation
    Aviation No
    Aviation No
  • Chemical specifications
    Be (from) 0
    Be (from) 0
    Be (to) 0
    Be (to) 0
    Cr (from) 0.1
    Cr (from) 0.1
    Cr (to) 0.2
    Cr (to) 0.2
    Cu (to) 0.2
    Cu (to) 0.2
    Fe (to) 0.45
    Fe (to) 0.45
    Mg (from) 1.5
    Mg (from) 1.5
    Mg (to) 2.5
    Mg (to) 2.5
    Mn (from) 0.15
    Mn (from) 0.15
    Mn (to) 0.5
    Mn (to) 0.5
    Rest Aluminium
    Rest Aluminium
    Si (to) 0.35
    Si (to) 0.35
    Ti (from) 0.1
    Ti (from) 0.1
    Ti (to) 0.4
    Ti (to) 0.4
    Zn (from) 3.5
    Zn (from) 3.5
    Zn (to) 4.5
    Zn (to) 4.5
    Ti + Cr 0,10 – 0,40
  • Chemical surface treatment
    Anodise - decorative 2
    Anodise - decorative 2
    Anodising - protective anodising 1
    Anodising - protective anodising 1
    Chromating 2
    Chromating 2
    Cleaning / degreasing 2
    Cleaning / degreasing 2
    Hard anodising 2
    Hard anodising 2
    Phosphating 2
    Phosphating 2
    Pickling 2
    Pickling 2
    Shining 4.5
    Shining 4.5
  • Corrosion resistance
    Normal atmosphere 2
    Normal atmosphere 2
    Seawater atmosphere 3
    Seawater atmosphere 3
  • Cutting
    Laser cutting 3
    Laser cutting 3
    Plasma cutting 2
    Plasma cutting 2
    Sawing 1
    Sawing 1
    Shear cutting 2
    Shear cutting 2
    Waterjet cutting 1
    Waterjet cutting 1
  • Food industry
    suitable according to DIN EN 602 No
    suitable according to DIN EN 602 No
  • Forming
    Bending 5
    Bending 5
    Deep drawing (conditional) 5
    Deep drawing (conditional) 5
    Impact extrusion 5
    Impact extrusion 5
    Press 5
    Press 5
    Upsetting (Conditional) 5
    Upsetting (Conditional) 5
  • Heat treatment - Softannealing
    Heating time min. 0.5 h
    Heating time min. 0.5 h
    Annealing temperature min. 350 °C
    Annealing temperature min. 350 °C
    Cooling conditions ≤ 30°C/h bis 250°C,
    unterhalb 250°C an der Luft
    Cooling conditions ≤ 30°C/h bis 250°C,
    unterhalb 250°C an der Luft
  • Machining / Machinability
    dimensional stability 1
    dimensional stability 1
    Eroding 1
    Eroding 1
    Etching 2
    Etching 2
    hardened 1
    hardened 1
    Photo etching 1
    Photo etching 1
  • Material
    Material chemically EN 573-3 Al Zn4 Mg2 Mn
    Material chemically EN 573-3 Al Zn4 Mg2 Mn
    DIN 3.4325
    DIN 3.4325
    DIN (old designation) Al Zn4,5 Mg1
    DIN (old designation) Al Zn4,5 Mg1
    France AFNOR -
    France AFNOR -
    Italy UNI -
    Italy UNI -
    Norway -
    Norway -
    Spain -
    Spain -
    Sweden -
    Sweden -
    United Kingdom BS -
    United Kingdom BS -
  • Mechanical surface treatment
    Blasting 1
    Blasting 1
    Brushing 2
    Brushing 2
    Grinding 2
    Grinding 2
    Polishing 1
    Polishing 1
  • Metallic coating
    Galvanising 2
    Galvanising 2
    Nickel coating 2
    Nickel coating 2
    Thermal spraying 4
    Thermal spraying 4
  • Organic coating
    Enamelling 5
    Enamelling 5
    Laminating 2
    Laminating 2
    Painting / Coating 1
    Painting / Coating 1
  • physical properties
    Coefficient of thermal expansion from 20 to 100°C 23.6 K⁻¹10⁻⁶
    Coefficient of thermal expansion from 20 to 100°C 23.6 K⁻¹10⁻⁶
    Density 2.75 g/cm³
    Density 2.75 g/cm³
    Electrical conductivity max. 23 m/Ω*mm²
    Electrical conductivity max. 23 m/Ω*mm²
    Electrical conductivity min. 19 m/Ω*mm²
    Electrical conductivity min. 19 m/Ω*mm²
    Modulus of elasticity 71 GPa
    Modulus of elasticity 71 GPa
    Thermal conductivity max. 150 W/m*K
    Thermal conductivity max. 150 W/m*K
    Thermal conductivity min. 135 W/m*K
    Thermal conductivity min. 135 W/m*K
  • Soldering
    Brazing 5
    Brazing 5
    Brazing with flux 5
    Brazing with flux 5
    Soft soldering 5
    Soft soldering 5
    Soft soldering with flux 4
    Soft soldering with flux 4
  • Welding
    Friction stir welding 2
    Friction stir welding 2
    Friction welding 2
    Friction welding 2
    Laser 2
    Laser 2
    MIG 2
    MIG 2
    Plasma 2
    Plasma 2
    Resistance spot welding 2
    Resistance spot welding 2
    TIG 2
    TIG 2
    welding additives

    • S-Al 5183
    • S-Al 5356
    welding additives

    • S-Al 5183
    • S-Al 5356
  • Aviation
    Aviation No
    Aviation No
  • Chemical specifications
    Be (from) 0
    Be (from) 0
    Be (to) 0
    Be (to) 0
    Cr (from) 0.1
    Cr (from) 0.1
    Cr (to) 0.2
    Cr (to) 0.2
    Cu (to) 0.2
    Cu (to) 0.2
    Fe (to) 0.45
    Fe (to) 0.45
    Mg (from) 1.5
    Mg (from) 1.5
    Mg (to) 2.5
    Mg (to) 2.5
    Mn (from) 0.15
    Mn (from) 0.15
    Mn (to) 0.5
    Mn (to) 0.5
    Rest Aluminium
    Rest Aluminium
    Si (to) 0.35
    Si (to) 0.35
    Ti (from) 0.1
    Ti (from) 0.1
    Ti (to) 0.4
    Ti (to) 0.4
    Zn (from) 3.5
    Zn (from) 3.5
    Zn (to) 4.5
    Zn (to) 4.5
    Ti + Cr 0,10 – 0,40
  • Chemical surface treatment
    Anodise - decorative 2
    Anodise - decorative 2
    Anodising - protective anodising 1
    Anodising - protective anodising 1
    Chromating 2
    Chromating 2
    Cleaning / degreasing 2
    Cleaning / degreasing 2
    Hard anodising 2
    Hard anodising 2
    Phosphating 2
    Phosphating 2
    Pickling 2
    Pickling 2
    Shining 4.5
    Shining 4.5
  • Corrosion resistance
    Normal atmosphere 2
    Normal atmosphere 2
    Seawater atmosphere 3
    Seawater atmosphere 3
  • Cutting
    Laser cutting 3
    Laser cutting 3
    Plasma cutting 2
    Plasma cutting 2
    Sawing 1
    Sawing 1
    Shear cutting 2
    Shear cutting 2
    Waterjet cutting 1
    Waterjet cutting 1
  • Food industry
    suitable according to DIN EN 602 No
    suitable according to DIN EN 602 No
  • Forming
    Bending 5
    Bending 5
    Deep drawing (conditional) 5
    Deep drawing (conditional) 5
    Impact extrusion 5
    Impact extrusion 5
    Press 5
    Press 5
    Upsetting (Conditional) 5
    Upsetting (Conditional) 5
  • Heat treatment - Softannealing
    Heating time min. 0.5 h
    Heating time min. 0.5 h
    Annealing temperature min. 350 °C
    Annealing temperature min. 350 °C
    Cooling conditions ≤ 30°C/h bis 250°C,
    unterhalb 250°C an der Luft
    Cooling conditions ≤ 30°C/h bis 250°C,
    unterhalb 250°C an der Luft
  • Machining / Machinability
    dimensional stability 1
    dimensional stability 1
    Eroding 1
    Eroding 1
    Etching 2
    Etching 2
    hardened 1
    hardened 1
    Photo etching 1
    Photo etching 1
  • Material
    Material chemically EN 573-3 Al Zn4 Mg2 Mn
    Material chemically EN 573-3 Al Zn4 Mg2 Mn
    DIN 3.4325
    DIN 3.4325
    DIN (old designation) Al Zn4,5 Mg1
    DIN (old designation) Al Zn4,5 Mg1
    France AFNOR -
    France AFNOR -
    Italy UNI -
    Italy UNI -
    Norway -
    Norway -
    Spain -
    Spain -
    Sweden -
    Sweden -
    United Kingdom BS -
    United Kingdom BS -
  • Mechanical surface treatment
    Blasting 1
    Blasting 1
    Brushing 2
    Brushing 2
    Grinding 2
    Grinding 2
    Polishing 1
    Polishing 1
  • Metallic coating
    Galvanising 2
    Galvanising 2
    Nickel coating 2
    Nickel coating 2
    Thermal spraying 4
    Thermal spraying 4
  • Organic coating
    Enamelling 5
    Enamelling 5
    Laminating 2
    Laminating 2
    Painting / Coating 1
    Painting / Coating 1
  • physical properties
    Coefficient of thermal expansion from 20 to 100°C 23.6 K⁻¹10⁻⁶
    Coefficient of thermal expansion from 20 to 100°C 23.6 K⁻¹10⁻⁶
    Density 2.75 g/cm³
    Density 2.75 g/cm³
    Electrical conductivity max. 23 m/Ω*mm²
    Electrical conductivity max. 23 m/Ω*mm²
    Electrical conductivity min. 19 m/Ω*mm²
    Electrical conductivity min. 19 m/Ω*mm²
    Modulus of elasticity 71 GPa
    Modulus of elasticity 71 GPa
    Thermal conductivity max. 150 W/m*K
    Thermal conductivity max. 150 W/m*K
    Thermal conductivity min. 135 W/m*K
    Thermal conductivity min. 135 W/m*K
  • Soldering
    Brazing 5
    Brazing 5
    Brazing with flux 5
    Brazing with flux 5
    Soft soldering 5
    Soft soldering 5
    Soft soldering with flux 4
    Soft soldering with flux 4
  • Welding
    Friction stir welding 2
    Friction stir welding 2
    Friction welding 2
    Friction welding 2
    Laser 2
    Laser 2
    MIG 2
    MIG 2
    Plasma 2
    Plasma 2
    Resistance spot welding 2
    Resistance spot welding 2
    TIG 2
    TIG 2
    welding additives

    • S-Al 5183
    • S-Al 5356
    welding additives

    • S-Al 5183
    • S-Al 5356
  • Aviation
    Aviation No
    Aviation No
  • Chemical specifications
    Be (from) 0
    Be (from) 0
    Be (to) 0
    Be (to) 0
    Cr (from) 0.1
    Cr (from) 0.1
    Cr (to) 0.2
    Cr (to) 0.2
    Cu (to) 0.2
    Cu (to) 0.2
    Fe (to) 0.45
    Fe (to) 0.45
    Mg (from) 1.5
    Mg (from) 1.5
    Mg (to) 2.5
    Mg (to) 2.5
    Mn (from) 0.15
    Mn (from) 0.15
    Mn (to) 0.5
    Mn (to) 0.5
    Rest Aluminium
    Rest Aluminium
    Si (to) 0.35
    Si (to) 0.35
    Ti (from) 0.1
    Ti (from) 0.1
    Ti (to) 0.4
    Ti (to) 0.4
    Zn (from) 3.5
    Zn (from) 3.5
    Zn (to) 4.5
    Zn (to) 4.5
    Ti + Cr 0,10 – 0,40
  • Chemical surface treatment
    Anodise - decorative 2
    Anodise - decorative 2
    Anodising - protective anodising 1
    Anodising - protective anodising 1
    Chromating 2
    Chromating 2
    Cleaning / degreasing 2
    Cleaning / degreasing 2
    Hard anodising 2
    Hard anodising 2
    Phosphating 2
    Phosphating 2
    Pickling 2
    Pickling 2
    Shining 4.5
    Shining 4.5
  • Corrosion resistance
    Normal atmosphere 2
    Normal atmosphere 2
    Seawater atmosphere 3
    Seawater atmosphere 3
  • Cutting
    Laser cutting 3
    Laser cutting 3
    Plasma cutting 2
    Plasma cutting 2
    Sawing 1
    Sawing 1
    Shear cutting 2
    Shear cutting 2
    Waterjet cutting 1
    Waterjet cutting 1
  • Food industry
    suitable according to DIN EN 602 No
    suitable according to DIN EN 602 No
  • Forming
    Bending 5
    Bending 5
    Deep drawing (conditional) 5
    Deep drawing (conditional) 5
    Impact extrusion 5
    Impact extrusion 5
    Press 5
    Press 5
    Upsetting (Conditional) 5
    Upsetting (Conditional) 5
  • Heat treatment - Softannealing
    Heating time min. 0.5 h
    Heating time min. 0.5 h
    Annealing temperature min. 350 °C
    Annealing temperature min. 350 °C
    Cooling conditions ≤ 30°C/h bis 250°C,
    unterhalb 250°C an der Luft
    Cooling conditions ≤ 30°C/h bis 250°C,
    unterhalb 250°C an der Luft
  • Machining / Machinability
    dimensional stability 1
    dimensional stability 1
    Eroding 1
    Eroding 1
    Etching 2
    Etching 2
    hardened 1
    hardened 1
    Photo etching 1
    Photo etching 1
  • Material
    Material chemically EN 573-3 Al Zn4 Mg2 Mn
    Material chemically EN 573-3 Al Zn4 Mg2 Mn
    DIN 3.4325
    DIN 3.4325
    DIN (old designation) Al Zn4,5 Mg1
    DIN (old designation) Al Zn4,5 Mg1
    France AFNOR -
    France AFNOR -
    Italy UNI -
    Italy UNI -
    Norway -
    Norway -
    Spain -
    Spain -
    Sweden -
    Sweden -
    United Kingdom BS -
    United Kingdom BS -
  • Mechanical surface treatment
    Blasting 1
    Blasting 1
    Brushing 2
    Brushing 2
    Grinding 2
    Grinding 2
    Polishing 1
    Polishing 1
  • Metallic coating
    Galvanising 2
    Galvanising 2
    Nickel coating 2
    Nickel coating 2
    Thermal spraying 4
    Thermal spraying 4
  • Organic coating
    Enamelling 5
    Enamelling 5
    Laminating 2
    Laminating 2
    Painting / Coating 1
    Painting / Coating 1
  • physical properties
    Coefficient of thermal expansion from 20 to 100°C 23.6 K⁻¹10⁻⁶
    Coefficient of thermal expansion from 20 to 100°C 23.6 K⁻¹10⁻⁶
    Density 2.75 g/cm³
    Density 2.75 g/cm³
    Electrical conductivity max. 23 m/Ω*mm²
    Electrical conductivity max. 23 m/Ω*mm²
    Electrical conductivity min. 19 m/Ω*mm²
    Electrical conductivity min. 19 m/Ω*mm²
    Modulus of elasticity 71 GPa
    Modulus of elasticity 71 GPa
    Thermal conductivity max. 150 W/m*K
    Thermal conductivity max. 150 W/m*K
    Thermal conductivity min. 135 W/m*K
    Thermal conductivity min. 135 W/m*K
  • Soldering
    Brazing 5
    Brazing 5
    Brazing with flux 5
    Brazing with flux 5
    Soft soldering 5
    Soft soldering 5
    Soft soldering with flux 4
    Soft soldering with flux 4
  • Welding
    Friction stir welding 2
    Friction stir welding 2
    Friction welding 2
    Friction welding 2
    Laser 2
    Laser 2
    MIG 2
    MIG 2
    Plasma 2
    Plasma 2
    Resistance spot welding 2
    Resistance spot welding 2
    TIG 2
    TIG 2
    welding additives

    • S-Al 5183
    • S-Al 5356
    welding additives

    • S-Al 5183
    • S-Al 5356

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

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