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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

A97068

AlZn7.5Mg2.5Cu2

Characteristics

  • One of the very strongest aluminium alloys - exceeds the strength of some steel grades

  • Good machinability

  • Good fatigue strength

  • Good dimensional stability

  • High thermal conductivity

Aluminium 7075.png

Supplied Shapes

  • Plate

  • Sheet

  • Coil

  • Round Bar

  • Square Bar

  • Rectangular Bar

  • Hexagonal Bar

  • Tube

  • Pipe

  • Custom Extrusions

Alloy 7075

Int'l Equivalents

AA

EN

UNS

Werkstoff

ISO

BS

7075

AW-7075

A97075

3.4365

AlZn5.5MgCu

2L95

Characteristics

  • One of the very strongest aluminium grades

  • Good machinability

  • Excellent stress corrosion resistance

  • Good ductility

  • Good resistance to fatigue

Aluminium 7095.png

Supplied Shapes

  • Rod

  • Bar

Alloy 7095

Int'l Equivalents

AA

EN

UNS

7095

AW-7095

A97095

Characteristics

  • Very high-strength

  • Very good toughness

Aluminium 7099.png

Supplied Shapes

  • Plate

  • Sheet

Alloy 7099

Int'l Equivalents

AA

EN

UNS

7099

AW-7099

A97099

Characteristics

  • Very high strength

  • Excellent stress corrosion cracking resistance

  • Excellent fracture toughness

  • 20% higher yield strength than 7050

Aluminium 7149.png

Supplied Shapes

  • Plate

  • Sheet

  • Billet

  • Ingot

  • Extrusions

Alloy 7149

Int'l Equivalents

AA

EN

UNS

7149

AW-7149

A97149

Characteristics

  • High-strength heat-treatable alloy

  • Excellent heat conductor

  • Excellent corrosion resistance

Aluminium 7150.png

Supplied Shapes

  • Plate

  • Extrusions

Alloy 7150

Int'l Equivalents

AA

EN

UNS

7150

AW-7150

A97150

Characteristics

  • High-strength

  • Good corrosion resistance

  • Good fatigue resistance

Aluminium 7175.png

Supplied Shapes

  • Plate

  • Sheet

  • Bar

  • Tube

  • Custom Extrusions

Alloy 7175

Int'l Equivalents

AA

EN

UNS

Werkstoff

ISO

7175

AW-7175

A97175

3.4334

AlZn5.5MgCu(B)

Characteristics

  • Very high-strength

  • Excellent toughness

  • Excellent resistance to stress corrosion cracking

  • Excellent fatigue-resisting strength

Aluminium 7178.png

Supplied Shapes

  • Plate

  • Sheet

  • Rod

  • Bar

  • Tubing

  • Wire

  • Extrusions

Alloy 7178

Int'l Equivalents

AA

EN

UNS

ISO

7178

AW-7178

A97178

AlZn7MgCu

Characteristics

  • Very high-strength

  • Good machinability

  • Good weldability

  • Good formability, even in thicker sections

Aluminium 7204.png

Supplied Shapes

  • Plate

  • Sheet

Alloy 7204

Int'l Equivalents

AA

EN

UNS

JIS

7204

AW-7204

A97204

7N01

Characteristics

  • High-strength alloy designed for the railway rolling stock industry.

  • Offers high-strength weldments

  • Good corrosion resistance

Aluminium 7249.png

Supplied Shapes

  • Extrusions

  • Custom Extrusions

Alloy 7249

Int'l Equivalents

AA

EN

UNS