SIZE TOLERANCES
STAINLESS • SUPER ALLOYS • ELECTRICAL STEELS
COLD FINISHED OR CENTERLESS GROUND BARS ROUNDS
SIZE IN INCHES
 TOLERANCE PLUS
OR MINUS INCH
1/16 to 9/32
.001
5/16 TO 11/32
.0015
3/8 TO 15/32
.0015
1/2 TO 19/32
.002
5/8 TO 31/32
.002
1 TO 1-15/32
.0025
1-1/2 TO 2-3/4
.003
2-13/16 TO 3
.003

3-1/8 TO 4
.003
...
COLD FINISHED BARS -- HEXAGONS AND SQUARES
SPECIFIED SIZE
IN INCHES
 SIZE TOLERANCE, INCHES
...
SQUARE
HEXAGON
...
OVER
UNDER
.050 to 5/16 excl.
0
.002
5/16 TO 1/2 excl.
0
.003
1/2
0
.004
Over 1/2 to 1 incl.
0
.004
Over 1 to 2 incl.
0
.006
Over 2 to 3 incl.
0
.008
Over 3 to 4 incl.
0
.010
...
...
...
PER: ASTMA A 484 (BAR) & ASTNA A 555 (WIRE)
HOT ROLLED AND ROUGH TURNED
ROUNDS HOT ROLLED SQUARES
SPECIFIED SIZE IN INCHES
 SIZE TOLERANCE, INCHES
...
OVER
UNDER
Over 1-1/2 to 2 incl.
.016
.016
Over 2 to 2-1/2 incl.
.031
0
Over 2-1/2 to 3-1/2 incl.
.047
0
Over 3-1/2 to 4-1/2 incl.
.062
0
Over 4-1/2 to 5-1/2 incl.
.078
0
Over 5-1/2 to 6-1/2 incl.
.125
0
Over 6-1/2 to 8 incl.
.156
0
Over 8 to 10 incl.
.250
0
Over 10
.375
0
...
COLD FINISHED BARS -- FLATS
WIDTH, INCHES
WIDTH TOLERANCE, INCHES
...
OVER
UNDER
...
FOR THICKNESS
1/4" & UNDER
FOR THICKNESS
OVER 1/4"
3/8 to 1 incl.
0.004
0.002
Over 1 to 2 incl.
0.006
0.003
Over 2 to 3 incl.
0.008
0.004
Over 3 to 4-1/2 incl.
0.010
0.005
...
...
...
THICKNESS, INCHES
THICKNESS TOLERANCE, IN.
OVER UNDER
1/8 to 1 incl.
0.002
Over 1 to 2 incl.
0.003
Over 2 to 3 incl.
0.004
Over 3 to 4-1/2 incl.
0.005
...
...
...
STAINLESS HOT FINESHED ROUND AND SQUARES
SPECIFIED SIZE, INCHES
 OVER UNDER OUT-OF- ROUND
OR OUR-OF- SQUARE
Over 5/16 to 7/16
0.006
0.006
0.009
Over 7/16 to 5/8
0.007
0.007
0.010
Over 5/8 to 7/8
0.008
0.008
0.012
Over 7/8 to 1
0.009
0.009
0.013
Over 1 to 1-1/8
0.010
0.010
0.015
Over 1-1/8 to 1-1/4
0.011
0.011
0.016
Over 1-1/4 to 1-3/8
0.012
0.012
0.018
Over 1-3/8 to 1-1/2
0.014
0.014
0.021
Over 1-1/2 to 2
1/64
1/64
0.023
Over 2 to 2-1/2
1/32
0
0.023
Over 2-1/2 to 3-1/2
3/64
0
0.035
Over 3-1/2 to 4-1/2
1/16
0
0.046
Over 4-1/2 to 5-1/2
5/64
0
0.058
Over 5-1/2 to 6-1/2
1/8
0
0.070
Over 6-1/2 to 8
5/32
0
0.085
...
HOT ROLLED BARS ROUND - CORNERED SQUARES
Corner Radii
NOMINAL SIZES* INCLUSIVE IN.
 NOMINAL CORNER RADII, IN.
2 to 2-7/16
5/16
2-1/2 to 2-7/8
3/8
3 to 3-3/8
7/16
4 to 4-3/8
5/8
4-1/2 to 6
3/4
Sizes are distances between opposite sides, Round-cornered squares are rolled to dimensions, not to weights per linear feet.
...
HOT ROLLED BARS - FLAT
SPECIFIED SIZE IN INCHES
THICKNESS TOLERANCE IN INCHES FOR THICKNESS GIVEN OVER AND UNDER
 ...
WIDTH TOLERANCE IN INCHES
1/8-1/2 Incl.
Over 1/2 to 1 Incl.
Over 1-2 Incl.
Over 2-4 Incl.
Over
Under
Up to 1 incl.
0.008
0.010
-
0.015
0.015
Over 1 to 2 incl.
0.012
0.015
0.031
-
0.031
0.031
Over 2 to 4 incl.
0.015
0.020
0.031
0.062............... 0.031
0.062
0.031
Over 4 to 6 incl.
0.015
0.020
0.031
0.062............... 0.031
0.093
0.062
Over 6 to 8 incl.
0.016
0.025
0.031
0.062............... 0.031
0.125
0.156
Over 8 to 10 incl.
0.021
.031
0.031
0.062............... 0.031
0.156
0.156
...
...
17-4 ph 302-303-304-416-440-C "PRECISION GROUND" TOLERANCE + -.005
COLD DRAWN HEX, SQUARES IN PH GRADES DOUBLE SIZE TOLERANCE
...
...

COLD FINISHED BARS
SIZES IN INCHES

MAXIMUM OF CARBON RANGE

0.28% OR LESS

 MAXIMUM OF CARBON RANGE 0.28% TO 0.55% INCL. ANNEALING OR NORMALIZING BEFORE COLD FINISHING MAXIMUM OF CARBON RANGE OT 0.55% INCL., STRESS RELIEVED OR ANNEALED AFTER COLD FINISHING MAXIMUM OF CARBON RANGE OVER 0.55% WITH OR WITHOUT STRESS RELIEVING OR ANNEALING AFTER COLD FINISHING, CARBONS, QUENCHED AND TEMPERED (HEAT TREATED), OR NORMALIZED AND TEMPERED, BEFORE COLD FINISHING
ROUNDS
 .... .... .... ....
To 1-1/2 INCL.
0.003
0.004
0.005
0.006
Over 1-1/2 to 2-1/2 incl.
0.004
0.005
0.006
0.007
Over 2-1/2 to 4 incl.
0.005
0.006
0.007
0.008
Over 4 to 6 incl.
0.006
0.007
0.008
0.009
Over 6 to 8 incl.
0.007
0.008
0.009
0.010
Over 8 to 9 incl.
0.008
0.009
0.010
0.011
Over 9
0.009
0.010
0.011
0.012
HEXAGONS ....... .... .... ....
To 3/4 incl.
0.003
0.004
0.005
0.007
Over 3/4 to 1-1/2 incl.
0.004
0.005
0.006
0.008
Over 1-1/2 to2-1/2 incl.
0.005
0.006
0.007
0.009

Over 2-1/2 to 3-1/8 incl.
0.006
0.007
0.008
0.010
Over 3-1/8 to 4 incl.
0.006
 . . .
SQUARES .... .... .... ....
To 3/4 incl.
0.003
0.005
0.006
0.008
Over 3/4 to 1-1/2 incl.
0.004
0.006
0.007
0.009
Over 1-1/2 to2-1/2 incl.
0.005
0.007
0.008
0.010

Over 2-1/2 to 4 incl.
0.007
0.009
0.010
0.012
Over 4 to 4 incl.
0.011
 . ... . ... . ...
FLATS ... ... ... ...
WIDTH IN INCHES
. ... . ... . ... . ...
To 3/4 incl.
0.004
0.005
0.007
0.009
Over 3/4 to 1-1/2 incl.
0.005
0.006
0.009
0.011
Over 1-1/2 to3 incl.
0.006
0.007
0.011
0.013

Over 3 to 4 incl.
0.007
0.009
0.012
0.017
Over 4 to 6 incl.
0.009
0.011
0.012
0.021
OVER 6
0.014
 . ... . ... . ...
. ... . ... . ... . ... . ...
All Tolerances are in Inches and are minus