Commercial mill flatness tolerances for stainless steel plate and nickel alloy plate don't meet the requirements of most customers today. At Sandmeyer, we do much better. Nearly every plate product we ship is individually flattened prior to shipping -- at no additional cost to you.
When your flatness requirement is especially critical, we have capabilities of flattening stainless steel plate to within 1/16" (1.6mm), based on the thickness and size of the piece. Flattening tube sheet blanks is Sandmeyer Steel Company's specialty.