Skip To Content

Enroll in our Steel Foundations course. Login or enroll to get Certified!


The internal shape of an object that is revealed by cutting through it. An example is the cross-section of a cylinder is a circle.

Get Certified

Complete Steel Foundations to get in-depth knowledge about everything steel.

Enroll in a course to track your progress.


We don't support Internet Explorer

Please use Chrome, Safari, Firefox, or Edge to view this site.