RE: What thickness of aluminium sheet do I need to achieve the same strength of a 1/8" st
askaluadmin > 08-06-2018, 08:38 AM
For tensile, metals are usually used until their yield (start to have permanent deformation).
A36 steel in plates, bars, and shapes with a thickness of less than 8 in (203 mm) has a minimum yield strength of 36,000 psi (250 MPa) and ultimate tensile strength of 58,000–80,000 psi (400–550 MPa).
The yield strength of pure aluminium is 7–11 MPa, while aluminium alloys have yield strengths ranging from 200 MPa to 600 MPa.[9]
That makes steel is stronger 22.7-35.7 times alumunium. So alumunium thk required is 22.7-35.7 times (2.84" to 4.46"). Depends on what steel and al-alloys.
Use tensile test to check.