Aluminum Technical Data Sheet and Plate Flatness Tolerances

Transcription

1 Flatness Tolerances Alloy (includes Alclads) Flatness Tolerances Flat Sheet (1) Up Thru 2 2 Thru 3 Longitudinal or Transverse Distance (ft) Center to Center Buckles or Edge Waves (2) Tolerances, (3) (4) (5) 1060, 1100, 1350, 3003, 3005, 3105, 5005, 5050, 5X /8 1/8 3004, 5052, 5083, 5086, 5252, X54, 5456, 5652, brazing sheet, /16 and all heat treatable alloys (1) Not applicable to cut to length sheet, panel flat sheet, coiled sheet, or sheet over 60 wide (3) Allowable deviation from flat with the sheet positioned on flat horizontal surface to minimize deviation (2) Also applicable to overall length of width of sheet if only one longitudinal and/or transverse buckle or edge wave is (4) Not applicable to O, F and FX8 and harder tempers. present. (5) Not applicable to end or corner turn up. 3 Thru 4 4 Thru 6 6 Longitudinal Flatness , in any 6 ft (3) 1/8 in any 6 ft or less Flatness Tolerances Sawed or Sheared Plate Tolerance (1) Allowable Deviation from Flat TX51 Tempers (2) Other than TX51 tempers (2)(7) 1/4 in any 6 ft or less 1/4 in any 6 ft or less Transverse Flatness Tolerance (1) Allowable Deviation from Flat, Widths over 4 ft 6 ft (4) Widths over 2 ft 4 ft Other than, Other than, TX51 tempers (2) TX51 tempers (2) TX51 tempers (2)(7) TX51 tempers (2)(7) / / /8 1/4 1/8 Widths 2 ft and less All tempers (7) Only short span flatness tolerance applies Short Span Flatness (5) , TX51 Tempers (2) Tolerance (6) Allowable Deviation from Flat Other than TX51 tempers (2)(7) (1) As measured with plate resting on a flat surface concave side upward, using a straightedge and a feeler gauge, dial (4) For widths over 6 ft, these tolerances alloy for any 6 ft of total width. gauge or scale. (5) Short span flatness is the deviation from flat over full span for spans 2 ft and less (2) TX51 is a general designation for the following stress relieved tempers: T351, T451, T651, T851, T7351, and T7651. (6) As measured with the plate resting on a flat surface (7) Not applicable to O, F, and HX8 and harder tempers. (3) For pieces ordered to less then 6 ft length, the tolerance is 1/8 for the total length 0.09

2 Lateral Bow and Squareness Tolerances Width Lateral Bow Tolerances - Flat Allowable Deviation of a side edge from a straight line Up Up 60 Tolerance Maximum allowable value of AA Length (1) 1.500(1) 0.750(1) 0.500(1) 1.000(1) 0.500(1) Up (1) 1.000(1) 0.562(1) (1) Also applicable to any 240-inch increment of longer sheet or plate Squareness Tolerances - Flat Width - ft. Up 3 3 Allowable difference in length of diagonals inches Length ft. Up /32 x width, ft (2) 9/64 x width, ft (2) Maximum difference between AA and BB 5/64 x width, ft (2) 7/64 x width, ft (2)

3 Tolerances Non Aerospace Applications Width - Up Thru Thru Thru Thru Thru Thru Thru Thru Thru Tolerances - plus and minus Width - Up Aerospace Applications Includes Aerospace Alloys , 2024, 2124, 2219, 2324, 2419, 7050, 7150, 7178 and Thru Tolerance - plus and minus

4 Wire, Rod and Bar Extruded Cross Sectional Dimension Tolerances - Profiles Except for T3510, T4510, T6510, T73510, T76510 and T8510 Tempers Dimension Metal Dimensions Dimension Where 75 Percent or more of the Dimension is Metal All Except Those Covered by Column 3 Wall Completely Enclosing Space 0.11 sq. and (Eccentricity) Space Dimensions Tolerance - in plus and minus Dimension Where more than 25 Percent of the Dimension is Space Col. 2 Col. 3 Col. 4 Col. 5 Col. 6 Col. 7 Col. 8 Col. 9 Alloys Other Alloys Other Alloys Other Alloys Other Alloys Other Alloys Other Alloys Other Alloys Other Col Alloys 5083 Alloys 5083 Alloys 5083 Alloys 5083 Alloys 5083 Alloys 5083 Alloys 5083 Alloys Circumscribing Circle Sizes Less Than 10 Inches in Diameter Up Circumscribing Circle Sizes 10 Inches in Diameter and Up

5 Wire, Rod and Bar Rolled or Cold-Finished Diameter Diameter - Round Wire and Rod Rod Plus Minus Up or Width and Width - Rectangular Wire and Bar Drawn Wire Rolled Bar Width Width Up Drawn Wire Tolerance - plus and minus Cold Finished Tolerance plus and minus Allowable Deviation from and Width Rolled Rod Distance Across Flats Distance across Flats - Square, Hexagonal and Octagonal Wire and Bar Bar Up Drawn Wire Tolerance Distance Across Flats Cold Finished Rolled Bar