Tri-Ply Circles
Circle vs Disc vs Blank: Sheet Metal Terminology for Buyers
Suppliers use these three words differently - and mixing them up in an RFQ gets you wrong quotes.
Circle
A round shape cut from sheet/coil - the general term. "Tri-ply circle" = round tri-ply piece, any size.
Disc
Often implies a thicker, machined round (common in industrial/flange contexts). In cookware, "disc" and "circle" are used interchangeably - but clarify thickness expectations.
Blank
A production-ready piece cut to the exact size for a specific forming operation. "Kadhai blank" = the circle sized for pressing that kadhai. Blanks imply tighter tolerances than generic circles.
How to spec it
In RFQs, write: "tri-ply circles (blanks), 460 mm dia × 2.0 mm, SS304/Al/SS430, deburred, ±0.5 mm tolerance" - material, dimensions, condition and tolerance in one line.
Frequently asked questions
Is a blank the same as a circle?
A blank is a circle cut for a specific forming job with tighter tolerances. All blanks are circles; not all circles are blanks.
Have a cookware project in mind?
We manufacture triply cookware and supply tri-ply circles for OEM, private label and distribution. Tell us your specs - we reply with a quote.