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    SMU ASTM Thickness Tolerances - Hot Rolled

    Hot-Rolled Sheet Thickness Tolerances

    The table below shows the ASTM thickness tolerances for hot rolled steel as well as weight in pounds per square feet. Sheet weights are based on ordered thickness at 41.82 pounds per square foot per inch thick (nominal weight).

    Sheet weights are based on ordered thickness at 41.82 pounds per square foot per inch thick (nominal weight).

    Hot Rolled Sheet Thickness Tolerances

    Gauge* Min. Max. Nom Lbs/sqft
    4 0.2152 0.2332 0.2242 9.376
    5 0.2002 0.2182 0.2092 8.748
    6 0.1853 0.2033 0.1943 8.125
    7 0.1713 0.1873 0.1793 7.498
    8 0.1564 0.1724 0.1644 6.875
    9 0.1415 0.1575 0.1495 6.252
    10 0.1265 0.1425 0.1345 5.624
    11 0.1116 0.1276 0.1196 5.001
    12 0.0966 0.1126 0.1046 4.374
    13 0.0827 0.0967 0.0897 3.751
    14 0.0677 0.0817 0.0747 3.124
    15 0.0613 0.0733 0.0673 2.814
    16 0.0538 0.0658 0.0598 2.501
    17 0.0478 0.0598 0.0538 2.25
    18 0.0428 0.0528 0.0478 1.999

    *Gauge numbers are related to the construction/HVAC industries, while other industries/end uses may use different gauge and thickness designations. We suggest using the actual reference thickness in decimal inches.

    You can visit the ASTM International website at https://www.astm.org/ for more information.