STANDARD PERMISSIBLE TOLERANCE
VARIATIONS OF STAINLESS STEEL BARS
Size Tolerances – Cold Finished Rounds Drawn, Ground or Ground and Polished ASTM A276/A484 |
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Specified Sizes
Inches |
Over
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Under
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.044 to 1/16” excl
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0.001
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0.001
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5/16” to 1/2” excl
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0.0015
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0.0015
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1/2 to 1” excl
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0.002
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0.002
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1” to 1-1/2” excl
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0.0025
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0.0025
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1-1/2” to 4” excl
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0.003
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0.003
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4-1/8” t o4-1/2” excl
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0.005
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0.005
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4-9/16” to 6” excl
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0.008
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0.008
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Processsed Flats Thickness Tolerances Cut From Plat (Shearing) ASTM A240 |
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Specified Thickness *
Inches |
Permissible Variations
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Over
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Under
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1/8”
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0.010
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0.010
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3/16”, 1/4”, 5/16”
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0.050
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0.010
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3/8”, 1/2”
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0.060
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0.010
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*Thickness is meausred along the longitudinal edges of the plate or plate coils at least 3/8″, but not more than 3″ from the edge before the bar is cut or slit.
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Processed Flats Width Tolerances Cut From Plat (Shearing) ASTM A240 |
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Specified Thickness *
Inches |
Permissible Variations
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Over
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Under
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1/8” to 3/8” incl.
|
0.063
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0.063
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Over 3/8” to 1/2” incl.
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0.125
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0
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Processed Flats Straightness Tolerances ASTM A240 |
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(Identical with Table #11 of ASTM A484) Measurement is taken on the concave side of the bar with a straight edge. Unless otherwise specified, bars are furnished machine straightened to the following tolerances: HOT FINISHED
1/8 inch in any 5 feet, but may not exced 1/8 x (no. of feet of length divided by 5) inches |
HOT FINISHED ANGLES | ||
NOTE: For unequal leg angles, the longer leg determines the tolerance for the length of each leg. Weight: Length of Legs: Squareness of Legs: |