Steel Plate/Sheet for Oven Mounting - What Grade to Use

[john908]

What is the difference between steel plate and steel sheet.I need to buy a piece that is 7ga and 6"long/6" wide to mount 2 -4"bearings on that will be on top of a oven at 525degF.What grade steel to use and plate or sheet?

 

[Gokul43201]

The difference (between plate and sheet) is primarily related to the thickness, and is not of much importance either way. I think a sheet is usually 1/8" or thinner, but then I've heard of 1/4" plates also referred to as sheet metal. 7ga steel is 3/16". Most common stainless steels (302/304/316/317/410/420/430/440) can be used at working temperatures which are typically above 1000F.

McMaster Carr sells a 6" X 6" X 3/16" plate of stainless for $20 or thereabouts.

http://www.mcmaster.com/#stainless-steel-sheets/=5y3c56