There is no way this top qualifies as any grade of stainless steel.  I have to scour rust off of it every week and even weak magnets stick to it!  We don't get the top very wet since we have a very large cutting board over it and clean and wipe it daily yet I still see rust spots.

To top it off, one of the pieces was damaged when it arrived.  The wood that supports the top had a split at the top.  I was already 90 finished assembling it when I noticed it, and even though the defect is visible when you open the drawer, I didn't feel like waiting month for a replacement and then have to disassemble the cart, which would be a real endeavor.

Save you money.  This is crap.