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7xxx Series Aluminium

The principle alloying element of 7xxx Series Aluminium Alloys is Zinc. With the addition of other alloying elements, such as Magnesium, 7xxx Series Alloys are the strongest of all Aluminium alloys.

 

Whilst being the strongest of all Aluminium alloys, the stronger grades are susceptible to both microsegregation and stress corrosion cracking, so considerations must be made for their application. Additionally, although not to the same extent as 2xxx Series Alloys, some grades do not offer good corrosion protection. As such there are Alclad options available where this property is needed.

These grades are used extensively in the aeronautical, automotive, medical, and leisure & recreation industries.

7xxx Series Alloys machine well, and some grades have excellent welding properties, particularly 7005, which is usually welded uses 5xxx Series welding wire as fillers.

We supply all grades of 7xxx Series Alloys, so please feel free to contact us with your direct requirements.

 

Available 7xxx Series Alloys

Aluminium 7003.png

Supplied Shapes

  • Billet

  • Custom Extrusions

Alloy 7003

Int'l Equivalents

AA

EN

UNS

ISO

7003

AW-7003

A97003

AlZn6Mg0.8Zr

Characteristics

  • High-strength extrusion alloy

  • Good mechanical properties

  • Good fatigue strength

  • High strength in welded structures

Aluminium 7005.png

Supplied Shapes

  • Sheet

  • Strip

  • Pipe

  • Bars

  • Custom Extrusions

Alloy 7005

Int'l Equivalents

AA

EN

UNS

Werkstoff

ISO

7005

AW-7005

A97005

3.4335

AlZn4.5Mg1.5Mn

Characteristics

  • Good mechanical strength

  • Good resistance to fatigue

  • Good machinability

Aluminium 7010.png

Supplied Shapes

  • Plate

  • Sheet

  • Tube

  • Round Bar

  • Hexagonal Bar

  • Billet

  • Custom Extrusions

Alloy 7010

Int'l Equivalents

AA

EN

UNS

ISO

BS

7010

AW-7010

A97010

AlZn6MgCu

DTD5130

Characteristics

  • High-strength

  • High corrosion resistance

  • High stress corrosion resistance

  • Good fatigue resistance

Aluminium 7012.png

Supplied Shapes

  • Billet

  • Custom Extrusions

Alloy 7012

Int'l Equivalents

AA

EN

UNS

ISO

7012

AW-7012

A97012

AlZn6Mg2Cu

Characteristics

  • Very high-strength

  • Very high fatigue strength

Aluminium 7019.png

Supplied Shapes

  • Plate

Alloy 7019

Int'l Equivalents

AA

EN

UNS

ISO

7019

AW-7019

A97019

AlZn4Mg2

Characteristics

  • High-strength

  • Good weldability

  • Very good machinability

  • Good response to anodising

  • Excellent tolerance of thickness and flatness

Aluminium 7020.png

Supplied Shapes

  • Plate

  • Sheet

  • Round Bar

  • Square Bar

  • Rectangular Bar

  • Tube

  • Pipe

  • Custom Extrusions

Alloy 7020

Int'l Equivalents

AA

EN

Werkstoff

ISO

BS

7020

AW-7020

3.4335

AlZn4.5Mg1

H17

Characteristics

  • High-strength

  • Excellent retention of strength post-welding

  • Good fatigue strength

  • Good toughness

Aluminium 7021.png

Supplied Shapes

  • Plate

Alloy 7021

Int'l Equivalents

AA

EN

UNS

ISO

7021

AW-7021

A97021

AlZn5.5Mg1.5

Characteristics

  • Very high-strength

  • Very good machinability

  • Very high stiffness

  • Microporosity-free

  • Very good elongation properties

  • Very good dampening properties

Aluminium 7022.png

Supplied Shapes

  • Plate

  • Sheet

  • Strip

  • Foil

  • Tube

  • Pipe

  • Bar

  • Custom Extrusions

Alloy 7022

Int'l Equivalents

AA

EN

UNS

WerkstoffISO

7022

AW-7022

A97022

3.4345

AlZn5Mg3Cu

Characteristics

  • High strength

  • Excellent machinability

  • Good thermal conductivity

  • Good dimensional stability

  • Resistant to stress corrosion cracking

Aluminium 7046.png

Supplied Shapes

  • Custom Extrusions

Alloy 7046

Int'l Equivalents

AA

EN

UNS

7046

AW-7046

A97046

Characteristics

  • High-strength

  • Excellent extrudability, including hollow extrusions and complex shapes

  • Good weldability

Aluminium 7049.png

Supplied Shapes

  • Plate

  • Forgings

  • Round bar

  • Flat bar

  • Rolled ring

  • Forged ring

  • Billet

  • Ingot

  • Custom Extrusions

Alloy 7049

Int'l Equivalents

AA

EN

UNS

ISO

7049

AW-7049

A97049

AlZn8MgCu

Characteristics

  • High-strength alloy suited to forging

  • Excellent resistance to stress corrosion cracking

  • Excellent machinability

Aluminium 7050.png

Supplied Shapes

  • Plate

  • Sheet

  • Tread Plate

  • Coil

  • Round Bar

  • Square Bar

  • Rectangular Bar

  • Hexagonal Bar

  • Custom Extrusions

Alloy 7050

Int'l Equivalents

AA

EN

UNS

Werkstoff

DIN

7050

AW-7050

A97050

3.4144

AlZn6CuMgZr

Characteristics

  • Very high-strength

  • Good resistance to exfoliation and stress corrosion cracking

  • Good fracture toughness

  • Good fatigue resistance

Aluminium 7068.png

Supplied Shapes

  • Rod

  • Bar

  • Plate

  • Tube

  • Forgings

Alloy 7068

Int'l Equivalents

AA

EN

UNS

ISO

7068

AW-7068