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Hot Rolled Sheet
Non-Pickled Temper
Rolled
Tolerances
Flatness Tolerances
All hot rolled sheet from any source will exhibit some variation in thickness, width, length, flatness and camber. Tolerances for each of these attributes are given in the Tolerance Tables.
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Flatness
Tolerances |
Hot Rolled Sheet
Coils and Cut
Length †
Not Specified to
Stretcher Level
Standard of
Flatness |
Flatness is defined as the deviation
of the height of the strip from a
horizontal flat surface. (Applies
only to temper rolled products.) |
Specified minimum
thickness, inches
(mm)
|
Specified width,
inches (mm)
|
Flatness tolerances,
inch (mm)
|
Specified Yield Strength,
min. ksi
|
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under 45
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45 to 50
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Over .057 (1.37) to
.180 (4.57)
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Through 60 (1520)
incl.
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1/2 (12.7)
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3/4 (19.0)
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Over 60 (1520) to 72
(1830) incl.
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3/4 (19.0)
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1 1/8 (30.2)
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Over 72 (1830)
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1 (25.4)
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1 1/2 (38.1)
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Over .180 (4.57)
to .230 (5.84) incl.
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Through 48 (1220)
incl.
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1/2 (12.7)
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3/4 (19.0)
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Over 48 (1220)
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Subject to Negotiation
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Subject to Negotiation
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Over .230 (5.84)
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All widths
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Subject to Negotiation
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Subject to Negotiation
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† The above flatness tolerances also apply to
lengths cut from coils by the consumer only when adequate flattening operations are
performed.
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