ENGINEERING.com has updated it's forum.  To post a question please visit the new Ask@ Forum.   

With a database of over 10000 questions the library will remain available for an extended period.

Q&A


Dupree
How can I tell the difference between aluminum and stainless steel just by looking at or touching it? View All


6 years ago - 6 months left to answer. - 5 responses - Report Abuse
Respond to question
    0      [lnkReport]        0       0       
Share |
  Responses


Lurch
You can try an acid test. Go to the site for more info...http://www.engineeringtoolbox.com/identification-stainless-steel-d_383.html

6 years ago

Source:


  0     0         

rahul gopinath
aluminium basically has a dull look but stainless steel has a very shiny look and appearance

6 years ago

Source:


  0     0         

Vic
Short Answer - Depends.... Longer Answer - There are many different grades of aluminum and steel... Some are closer in material properties than others... Steel is more dense than aluminum, as a general note.... If you had an equal amount of both, the steel would be the heavier one.... Also, aluminum is not necessarily dull, and steel, is not necessarily shiny. Again, depending on the grade of each and finishing processes used, (i.e. electropolish, bead blasting, anodizing, etc.) aluminum can be very shiny and steel can be very dull. On the surface, comparing weights of equal volumes is your best bet, other than that, mechanical testing is probably necessary. Hope this answers your questions somewhat....

6 years ago

Source:


  0     0         

Charles
Hmmmm. Looking at is tough and as stated you can have a finish that makes both look identica as stated abovel. If you have both metals together the hardness of the aluminum will be softer so rub or scratch the metal on each other and see which has left a deeper or more of a mark. I know this is a "low tech" approach but should do in a pinch. This will NOT work if you have a very high grade aluminum alloy with a very high Brinell hardness. Hope this helps.

6 years ago

Source:


  0     0         

Evilon
simple, take 1 piece of aluminium and 1 piece of stainless steel and hold it in ur hand they musy be the same size, you can feel the weight different, aluminium is much lighter, while stainless is much heavier, or a simple test, take a needle file, just file on the aluminium and you see that aluminium material can be remove easily by filing away with a needle file while stainless is much harder and u can't file and remove any material on that piece of stainless steel, in short stainless is the heavier and harder material and aluminium is the lighter and easily deform material, try it and u be able to see the different right away. thank you, just 1 cent worth of opnion

6 years ago

Source:


  0     0         

ENGINEERING.com does not provide engineering advice. The Ask@ service is a forum for members to exchange ideas relating to the world of engineering. We caution users not to accept any responses that they receive without further validation, and not to rely on any engineering advice that they may get from other members of the Ask@ forum. ENGINEERING.com specifically disclaims any obligation to validate or verify any information posted within the Ask@ service. ENGINEERING.com encourages users to seek the services of a professional engineer for any engineering advice they may require.


All Categories
Unanswered Questions
Recently Answered Questions
Fun & Puzzles
General Engineering
Mechanical/Automotive
Civil/Structural
Chemical/Material
Electrical/Electronics
Industrial
Computer Engineering
Student Questions
View All Categories

iPhone/iPad App

Android App