Carbon Steel Sheet Tolerances: Hot Roll, HRPO and Cold Roll

Click here to view Galvanized Tolerances.

Gage NumberDecimal EquivalentTolerance RangeLbs./Sq.Ft.
HR & P&OCR
40.22420.2152 to 0.23329.375
50.20920.2002 to 0.21828.750
60.19430.1853 to 0.20338.125
70.17930.1713 to 0.18730.1713 to 0.18737.500
80.16440.1564 to 0.17240.1564 to 0.17246.875
90.14950.1415 to 0.15750.1415 to 0.15756.250
100.13450.1265 to 0.14250.1285 to 0.14055.625
110.11960.1116 to 0.12760.1136 to 0.12565.000
120.10460.0966 to 0.11260.0986 to 0.11064.375
130.08970.0827 to 0.09670.0847 to 0.09473.750
140.07470.0677 to 0.08170.0697 to 0.07973.125
150.06730.0613 to 0.07330.0623 to 0.07232.813
160.05980.0538 to 0.06580.0548 to 0.06482.500
170.05380.0478 to 0.05890.0498 to 0.05782.250
180.04780.0428 to 0.05280.0438 to 0.05182.000
190.04180.0378 to 0.04581.750
200.03590.0329 to 0.03891.500
210.03290.0299 to 0.03591.375
220.02990.0269 to 0.03291.250
230.02690.0239 to 0.02991.125
240.02390.0209 to 0.02691.000
250.02090.0179 to 0.02390.875
260.01790.0159 to 0.01990.750
270.01640.0144 to 0.01840.688
280.01490.0129 to 0.01690.625

Carbon Steel Sheet Tolerances: Galvanized

Gage NumberDecimal EquivalentTolerance RangeLbs./Sq.Ft.
80.16810.1591 to 0.17717.031
90.15320.1422 to 0.16226.406
100.13820.1292 to 0.14725.781
110.12330.1143 to 0.13235.156
120.10840.0994 to 0.11744.531
130.09340.0854 to 0.10143.906
140.07850.0705 to 0.08653.281
150.0710.065 to 0.07702.969
160.06350.0575 to 0.06952.656
170.05750.0525 to 0.06252.406
180.05160.0466 to 0.05662.156
190.04560.0406 to 0.05061.906
200.03960.0356 to 0.04361.656
210.03660.0326 to 0.04061.531
220.03360.0296 to 0.03761.406
230.03060.0266 to 0.03461.281
240.02760.0236 to 0.03161.156
250.02470.0207 to 0.02871.031
260.02170.0187 to 0.02470.906
270.02020.0172 to 0.02320.844
280.01870.0157 to 0.02170.781
290.01720.0142 to 0.02020.719

Cold Finish Carbon Steel Bar Tolerances

All tolerances in inches to the minus.

Size RangeMax. Carbon
≤ 0.28%
Max. Carbon
0.28% to 0.55%
Group 1
Max. Carbon
≤ 0.55%
Max. Carbon
> 0.55%
Group 2
All Grades
Rounds - Cold Drawn or Turned and Polished
to 1-1/2"0.002"0.003"0.004"0.005"0.005"
>1-1/2" to 2-1/2"0.003"0.004"0.005"0.006"0.006"
>2-1/2" to 4"0.004"0.005"0.006"0.007"0.007"
>4" to 6"0.005"0.006"0.007"0.008"0.008"
>6" to 8"0.006"0.007"0.008"0.009"0.009"
>8" to 9"0.007"0.008"0.009"0.010"0.010"
> 9"0.008"0.009"0.010"0.011"0.011"
Hexagons - Cold Drawn
to 3/4"0.002"0.003"0.004"0.006"0.006"
>3/4" to 1-1/2"0.003"0.004"0.005"0.007"0.007"
>1-1/2" to 2-1/2"0.004"0.005"0.006"0.008"0.008"
>2-1/2" to 3-1/8"0.005"0.006"0.007"0.009"0.009"
Squares - Cold Drawn
to 3/4"0.002"0.004"0.005"0.007"0.007"
>3/4" to 1-1/2"0.003"0.005"0.006"0.008"0.008"
>1-1/2" to 2-1/2"0.004"0.006"0.007"0.009"0.009"
>2-1/2" to 4"0.006"0.008"0.009"0.011"0.011"
Flats - Cold Drawn *
(tolerance applies to both thickness and width)
to 3/4"0.003"0.004"0.006"0.008"0.008"
>3/4" to 1-1/2"0.004"0.005"0.008"0.010"0.010"
>1-1/2" to 3"0.005"0.006"0.010"0.012"0.012"
>3" to 4"0.006"0.008"0.011"0.016"0.016"
>4" to 6"0.008"0.010"0.012"0.020"0.020"
> 6"0.013"0.015"---

* Size Ranges shown are for widths.

Group 1 is bars that are stress relieved or annealed after cold finishing.

Group 2 is bars of all grades that are quenched and tempered, or normalized and tempered before cold finishing