Aluminum 7068 Alloy (UNS A97068)

Topics Covered

Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations


Aluminium / aluminum is a light-weight metal with a bright silvery luster. This metal along with its alloys are in high demand worldwide.

Aluminium / aluminum 7068 alloy is a heat treatable wrought alloy with good fatigue strength, good anodizing response, and high thermal conductivity. It was designed as a higher strength alternative to aluminium/aluminum 7075 for ordnance applications. It also provides the highest mechanical strength of all aluminium / aluminum alloys.

The following datasheet will provide more details about aluminium / aluminum 7068 alloy.

Chemical Composition

The following table shows the chemical composition of aluminium / aluminum 7068 alloy.

Element Content (%)
Zinc, Zn 8.3
Magnesium, Mg 3
Copper, Cu 2.4
Iron, Fe 0.15
Zirconium, Zr 0.15
Silicon, Si 0.12
Manganese, Mn 0.1
Titanium, Ti 0.1
Chromium, Cr 0.05
Other (each) 0.05
Other (total) 0.15
Aluminum, Al Remainder

Physical Properties

The physical properties of aluminium / aluminum 7068 alloy are outlined in the following table.

Properties Metric Imperial
Density 2.85 mg/cm³ 0.103 lb/in³
Melting point 476-635 ºC 890-1175 ºF

Mechanical Properties

The mechanical properties of aluminium / aluminum 7068 alloy are tabulated below.

Properties Metric Imperial
Tensile strength 641 MPa 93 ksi
Yield strength 590 MPa 85.7 ksi
Elongation 8% 8%

Thermal Properties

The thermal properties of aluminium / aluminum 7068 alloy are tabulated below.

Properties Metric Imperial
Thermal conductivity 190 W/mK 1317 BTU in/hr.ft².°F

Other Designations

Analyze Your Metals | Request a Quote

Equivalent materials to aluminium / aluminum 7068 alloys are listed below:

  • AMS 4331
  • AMS 2772


The machinability of aluminium / aluminum 7068 alloy is good and matches that of aluminium / aluminum 7075 alloy; however welding should be performed with expert advice. Anodizing of this alloy is possible using all the traditional techniques. When performing hard anodizing, the surface becomes more abrasion resistant.


Aluminium / aluminum 7068 alloy is chiefly used in the following areas:

  • Connecting rods
  • Autosport gearbox actuators and wheel components
  • Prosthetic limbs
  • Load cells
  • Hydraulic valve components
  • High pressure solenoids
  • Flexible shaft coupling
  • Snowmobile engine shafts
  • Automobile shock absorbers
  • Fuel pumps for racing engines
  • Motorcycle gears
  • Recreational products such as tents, ski and backpack rods, bicycles and mountain climbing equipment
  • Automotive valve body and connecting rod


  1. madhusudhan m madhusudhan m India says:

    i would like to know more about AA 7068

The opinions expressed here are the views of the writer and do not necessarily reflect the views and opinions of

Tell Us What You Think

Do you have a review, update or anything you would like to add to this article?

Leave your feedback
Your comment type
Azthena logo powered by Azthena AI

Your AI Assistant finding answers from trusted AZoM content

Azthena logo with the word Azthena

Your AI Powered Scientific Assistant

Hi, I'm Azthena, you can trust me to find commercial scientific answers from

A few things you need to know before we start. Please read and accept to continue.

  • Use of “Azthena” is subject to the terms and conditions of use as set out by OpenAI.
  • Content provided on any AZoNetwork sites are subject to the site Terms & Conditions and Privacy Policy.
  • Large Language Models can make mistakes. Consider checking important information.

Great. Ask your question.

While we only use edited and approved content for Azthena answers, it may on occasions provide incorrect responses. Please confirm any data provided with the related suppliers or authors. We do not provide medical advice, if you search for medical information you must always consult a medical professional before acting on any information provided.

Your questions, but not your email details will be shared with OpenAI and retained for 30 days in accordance with their privacy principles.

Please do not ask questions that use sensitive or confidential information.

Read the full Terms & Conditions.