Aluminium 6082 Material equivalent in SolidWorks 2018

Assuming you know what the correct material properties are of the material you want to use I would start by finding a similar material that currently exists. When you are applying a material and have a list of all the current materials, find the similar material, right click it and select copy.

Scroll down near the bottom of the page, right click and create a "new library"  (call Custom Materials) which should be a blue folder near the bottom. Right click that and create a "new Category" (say call that custom aluminium). Right click that and paste your copied material. You can then edit the material properties to what is required and change the name to what you require.

Someone online may have already created the exact properties for your material and if they have they could copy out the library and you could import that but assuming you can't get a copy from someone then editing a similar material and editing the properties is likely the easiest method.

Hope that helps.

Craig

OK, here is some reading material:

Aluminum 6082-T6 Material Properties From MatWeb:

Aluminum 6082-T6

How to create a Custom Material:

2017 SOLIDWORKS Help - Creating a Custom Material

https://hawkridgesys.com/blog/solidworks-custom-material-library

https://www.javelin-tech.com/blog/2011/01/solidworks-custom-materials/

How to Add SOLIDWORKS Material Properties