Plate Standard Tolerances
Standard Tolerances
Stainless Steel Plate Mill Plate (PMP) - Forms Finishes and
Tolerances
ATI offers quality stainless plate mill plate products in a full range of sizes-3/16" to 10" in thickness and over 6" in
width. These are available in a variety of grades and finishes.
Available shapes include rectangles, circles, rings, bars, or special shapes per customer drawing. Tolerances will be
applied on top of cleanup allowance specified by customer.
Size Tolerances
Data are typical, are provided for informational purposes, and should not be construed as maximum or minimum values for specification
or for final design, or for a particular use or application. The data may be revised anytime without notice. We make no representation or
warranty as to its accuracy and assume no duty to update. Actual data on any particular product or material may vary from those shown
herein. U.S. and foreign patents; other patents pending. TM is trademark of and ® is registered trademark of ATI Properties, Inc. or its
affiliated companies. ® The starburst logo is a registered trademark of ATI Properties, Inc. © 2014 ATI. All rights reserved..
VERSION 1 (3/20/2014): PAGE 1 of 3
Allegheny Technologies Incorporated
1000 Six PPG Place
Pittsburgh, PA 15222-5479 U.S.A.
www.ATImetals.com
Plate Standard Tolerances
Standard Tolerances
*No plate 10" thick or under shall vary more than .01" under the thickness ordered. Spot grinding not to exceed .01" under the
specified thickness is permitted to remove surface imperfections on thicknesses 10" and under. Note: For thicknesses 10" or greater,
refer to the mill.
FLATNESS TOLERANCES
Commercial flatness per ASTM A480. Special flatness requirements for 1/2" thickness and under are available by
stretcher leveling.
FINISHES
Standard Finishes
HRAP - Hot rolled, annealed and pickled is standard for best corrosion resistance and surface conditions.
HRA - Hot rolled and annealed suggested only for heat resisting applications. There is no guarantee on surface quality.
Special Finishes
Polished Finish - Polished and ground finishes are available for special applications.
Stainless Steel Continuous Mill Plate (CMP)
ATI stainless CMP steels are produced from continuous coil rolling, with availability in coil or cut lengths. Thicknesses
range from 0.1875" to 0.3125" and widths from 24-48".
Data are typical, are provided for informational purposes, and should not be construed as maximum or minimum values for specification
or for final design, or for a particular use or application. The data may be revised anytime without notice. We make no representation or
warranty as to its accuracy and assume no duty to update. Actual data on any particular product or material may vary from those shown
herein. U.S. and foreign patents; other patents pending. TM is trademark of and ® is registered trademark of ATI Properties, Inc. or its
affiliated companies. ® The starburst logo is a registered trademark of ATI Properties, Inc. © 2014 ATI. All rights reserved..
VERSION 1 (3/20/2014): PAGE 2 of 3
Allegheny Technologies Incorporated
1000 Six PPG Place
Pittsburgh, PA 15222-5479 U.S.A.
www.ATImetals.com
Plate Standard Tolerances
Standard Tolerances
Dimensional Tolerances, Inch
• Gage +0.025 – 0.010
• Width +1/16 - 0.0
• Roller Level Flatness 1/2 maximum
• Camber 1/8 in 8 feet
• Length +1/4 – 0.0
• Inquire for specific requirements for tighter than standard gage tolerances.
• Camber tolerances of 1/16 inch maximum in 20 feet available upon individual inquiry request.
• Stretcher leveled and resquared CMP available upon request. Inquire for specific width, length and squareness tolerances.
FINISHES
HRAP(#1) – Hot rolled, annealed and pickled.
2B Plate Finish – Also known as ATI’s exclusive 56 Finish. A smoother cold rolled, annealed and pickled product that is skin
passed on polished rolls to approach a 2B Finish.
Polish – Available on individual inquiry basis.
Data are typical, are provided for informational purposes, and should not be construed as maximum or minimum values for specification
or for final design, or for a particular use or application. The data may be revised anytime without notice. We make no representation or
warranty as to its accuracy and assume no duty to update. Actual data on any particular product or material may vary from those shown
herein. U.S. and foreign patents; other patents pending. TM is trademark of and ® is registered trademark of ATI Properties, Inc. or its
affiliated companies. ® The starburst logo is a registered trademark of ATI Properties, Inc. © 2014 ATI. All rights reserved..
VERSION 1 (3/20/2014): PAGE 3 of 3
Allegheny Technologies Incorporated
1000 Six PPG Place
Pittsburgh, PA 15222-5479 U.S.A.
www.ATImetals.com