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Thickness
Tolerances | Width
Tolerances | Flatness
Tolerances |
Camber
Tolerances
Thickness 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.
|
|
 Nominal Thickness Tolerances* for
Coils and Cut Lengths, Thickness tolerances over and under, inches
(mm)
|
Hot Rolled Sheet Steel
Carbon 0.25% Maximum
|
Specified width
inches (mm) |
Over
.375
(9.5)
to
.500 (12.7)
incl.† |
Over
.313 (7.95)
to
.375
(9.5)
incl.† |
Over
.229 (5.82)
to
.313 (7.95)
incl.† |
Over
.179 (4.55)
to
.229 (5.82)
incl. |
Over
.098 (2.49)
to
.179 (4.55)
incl. |
Over
.071 (1.80)
to
.098 (2.49)
incl. |
Over
.057 (1.45)
to
.071 (1.80)
incl. |
.054 (1.37)
to
.057 (1.45)
incl. |
| Over 20 (510) to 40 (1020) incl. |
.011
(.28)
|
.009
(.23) |
.008
(.20) |
.006
(.15) |
.005
(.13) |
.005
(.13) |
.0045
(.11) |
.004
(.10) |
|
Over 40 (1020) to 48 (1220) incl. |
.011
(.28)
|
.010
(.25) |
.009
(.23) |
.007
(.18) |
.006
(.15) |
.005
(.13) |
.0045
(.11) |
.004
(.10) |
|
Over 48 (1220) to 60 (1520) incl. |
.011
(.28)
|
.011
(.27) |
.009
(.23) |
.008
(.20)† |
.006
(.15) |
.005
(.13) |
.005
(.13) |
|
|
Over 60 (1520) to 72 (1830) incl. |
.012
(.30)
|
.011
(.28) |
.010
(.25) |
.008
(.20)† |
.006
(.15) |
.006
(.15) |
.005
(.13) |
|
| Over 72 (1830) |
**
|
** |
.011
(.28) |
.009
(.23) |
.006
(.15) |
.006
(.15) |
|
|
|
|
|
Nominal Thickness Tolerances* for
Coils and Cut Lengths, Thickness tolerances over and under, inches
(mm)
|
Hot Rolled Sheet
Steel
High Strength Low Alloy
|
Specified width
inches (mm) |
Over
.375 (9.5)
to
.500 (12.7)
incl.† |
Over
.313 (8.0)
to
.375 (9.5)
incl.† |
Over
.229 (5.82)
to
.313 (8.0)
incl.† |
Over
.179 (4.55)
to
.229 (5.82)
incl. |
Over
.098 (2.49)
to
.179 (4.55)
incl. |
Over
.082 (2.80)
to
.098 (2.49)
incl. |
Over
.059 (1.50)
to
.082 (2.08)
incl. |
.054 (1.37)
to
.059 (1.50)
incl. |
| Over 24 (510) to 32
(815) incl.
|
.011
(.28) |
.009
(.23) |
.008
(.20) |
.007
(.18) |
.006
(.15) |
.005
(.13) |
.005
(.13) |
.0045
(.11) |
| Over 32 (815) to 40
(1020) incl.
|
.011
(.28) |
.009
(.23) |
.008
(.20) |
.007
(.18) |
.006
(.15) |
.006
(.15) |
.005
(.13) |
.0045
(.11) |
| Over 40 (1020) to 48
(1220) incl.
|
.011
(.28) |
.010
(.25) |
.009
(.23) |
.0075
(.19) |
.0075
(.19) |
.006
(.15) |
.005
(.13) |
.005
(.13) |
| Over 48 (1220) to 60
(1520) incl.
|
.011
(.28) |
.011
(.28) |
.009
(.23) |
.008
(.20) |
.0075
(.19) |
.006
(.15) |
.005
(.13) |
.005
(.13) |
| Over 60 (1520) to 72
(1830) incl.
|
.012
(.30) |
.011
(.28) |
.010
(.25) |
.008
(.20) |
.008
(.20) |
.007
(.18) |
.006
(.15) |
|
| Over 72
(1830)
|
** |
** |
** |
** |
.009
(.23 ) |
.007
(.18) |
** |
|
|
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Thickness is
measured at any point across the width not less than 5/8" (16 mm)
from a side trimmed cut edge and not less than 1" (25mm) from a
mill edge. The above tolerances do not apply to the uncropped
ends of Hot Rolled Sheet Non-Temper
|
Rolled coils.
All Hot Rolled products exhibit a degree of crown which is defined
as the difference in thickness between the center of the sheet and
the thickness 5/8" (16 mm) or 1" (25 mm) from the edge.
|
**Subject to
inquiry.
† Applicable
only to coils.
|
|
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Minimum Thickness Tolerances*
for Coils and Cut Lengths,
Thickness tolerances all over
nothing under, inches (mm)
|
Hot Rolled Sheet
Steel
Carbon 0.25% Maximum
|
Specified width
inches (mm) |
Over
.375 (9.5)
to
.500 (12.7)
incl.† |
Over
.313 (8.0)
to
.375 (9.5)
incl.† |
Over
.229 (5.82)
to
.313 (8.0)
incl.† |
Over
.098 (4.55)
to
.180 (5.82)
incl. |
Over
.082 (2.49)
to
.098 (4.55)
incl. |
Over
.070 (1.80)
to
.082 (2.49)
incl. |
Over
.059 (1.45)
to
.070 (1.80)
incl. |
.054
(1.37)
to
.059
(1.45)
incl. |
Over 24 (510) to
40 (1020) incl. |
.022
(.56) |
.018
(.46) |
.016
(.40) |
.012
(.30) |
.010
(.25) |
.010
(.25) |
.009
(.23) |
.008
(.20) |
Over 40 (1020) to
48 (1220) incl. |
022
(.56) |
.020
(.50) |
.018
(.46) |
.014
(.36) |
.012
(.30) |
.010
(.25) |
.009
(.23) |
.008
(.20) |
Over 48 (1220) to
60 (1520) incl. |
.022
(.56) |
.022
(.56) |
.018
(.46) |
.016
(.40)† |
.012
(.30) |
.010
(.25) |
.010
(.25) |
|
Over 60 (1520) to
72 (1830) incl. |
.024
(.60) |
.022
(.56) |
.020
(.50) |
.016
(.40)† |
.012
(.30) |
.012
(.30) |
.010
(.25) |
|
| Over 72 (1830) |
** |
** |
.022
(.57) |
.018
(.46) † |
.012
(.30) |
.012
(.30) |
.010
(.25) |
|
|
|
|
Minimum Thickness Tolerances*
for Coils and Cut Lengths,
Thickness tolerances all over
nothing under, inches (mm)
|
Hot Rolled Sheet
Steel
High Strength Low Alloy
|
Specified width
inches (mm) |
Over
.375
(9.5)
to
.500
(12.7)
incl.† |
Over
.313
(7.95)
to
.375
(9.5)
incl.† |
Over
.229 (5.82)
to
.313
(7.95)
incl.† |
Over
.179 (4.55)
to
.229 (5.82)
incl. |
Over
.098 (2.49)
to
.179 (4.55)
incl. |
Over
.082 (2.08)
to
.098 (2.49)
incl. |
Over
.059 (1.50)
to
.082 (2.08)
incl. |
.054
(1.37)
to
.059
(1.50)
incl. |
| Over 24 (510) to 32 (815) incl. |
.022
(.56) |
.018
(.46) |
.016
(.40) |
.014
(.34) |
.012
(.30) |
.010
(.27) |
.010
(.25) |
.009
(.23) |
|
Over 32 (815) to 40 (1020) incl. |
.022
(.56) |
.018
(.46) |
.016
(.40) |
.014
(.34) |
.012
(.30) |
.012
(.30) |
.010
(.25) |
.009
(.23) |
| Over 40 (1020) to 48 (1220) incl. |
.022
(.56) |
.020
(.50) |
.018
(.46) |
.015
(.38) |
.015
(.38) |
.012
(.30) |
.010
(.25) |
.010
(.25) |
| Over 48 (1220) to 60 (1520) incl. |
.022
(.56) |
.022
(.56) |
.019
(.46) |
.016
(.40)† |
.015
(.38) |
.012
(.30) |
.010
(.25) |
.010
(.25) |
| Over 60 (1520) to 72 (1830) incl. |
.024
(.60) |
.022
(.56) |
.020
(.50) |
.016
(.40)† |
.016
(.38) |
.014
(.34) |
.012
(.30) |
|
| Over 72 (1830) |
** |
** |
** |
** |
.018
(.46) |
.014
(.34) |
** |
|
|
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*Thickness is
measured at any point across the width not less than 5/8" (16 mm)
from a side trimmed cut edge and not less than 1" (25mm) from a
mill edge. The above tolerances do not apply to the uncropped
ends of Hot Rolled Sheet Non-Temper
|
Rolled coils.
All Hot Rolled products exhibit a degree of crown which is defined
as the difference in thickness between the center of the sheet and
the thickness 5/8" (16 mm) or 1" (25 mm) from the edge.
|
**Subject to
inquiry.
† Applicable
only to coils.
|
Width 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.
|
Width
Tolerances
|
Hot Rolled Sheet-Carbon and High Strength Low Alloy
(Side Trimmed Edge)
Coils and Cut Length Not Resquared, Including
Pickled
|
|
Specified
width,
inches (mm)
|
Tolerance over
specified
width, inches (mm)
No tolerance under
|
|
Over 12 (300) to
30 (760) incl.
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1/8 (3.2)
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|
Over 30 (760) to
48 (1220) incl.
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3/16 (4.8)
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Over 48 (1220) to
60 (1520) incl.
|
¼
(6.4)
|
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Over 60 (1520) to
73 (1854) incl.
|
5/16 (7.9)
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Width
Tolerances
|
All Hot Rolled Sheet - Carbon
(Mill Edge) Including Pickled
|
|
Specified
width,
inches (mm)
|
Tolerance over
specified
width, inches (mm)
No tolerance under
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Over 24 (610) to
26 (660) incl.
|
13/16 (21)
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Over 26 (660) to
30 (760) incl.
|
15/16 (24)
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Over 30 (760) to
50 (1270) incl.
|
1 1/8 (29)
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Over 50 (1270) to
74 (1880) incl.
|
1 ½ (38)
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The above tolerances
do not apply to uncropped ends of mill edge coils.
|
Width
Tolerances
|
Hot Rolled Sheet -
High Strength Low Alloy
(Mill Edge), Including Pickled
|
|
Specified
width,
inches (mm)
|
Tolerance over
specified
width, inches (mm)
No tolerance under
|
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Over 24 (610) to
26 (660) incl.
|
13/16 (21)
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Over 26 (660) to
28 (711) incl.
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15/16 (24)
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Over 28 (711) to
35 (889) incl.
|
1 1/8 (29)
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Over 35 (889) to
50 (1270) incl.
|
1 ¼
(32)
|
|
Over 50 (1270) to
60 (1520) incl.
|
1½
(38)
|
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Over 60 (1520) to
65 (1651) incl.
|
1 5/8 (41)
|
|
Over 65 (1651) to
70 (1778) incl.
|
1¾
(44)
|
|
Over 70
(1778)
|
1 7/8 (48)
|
The above tolerances
do not apply to uncropped ends of mill edge coils.
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Length
Tolerances
|
Hot Rolled Sheet-Carbon and
High Strength Low Alloy
Cut Lengths Not Resquared, Including Pickled
|
|
Specified
width,
inches (mm)
|
Tolerance over
specified
width, inches (mm)
No tolerance under
|
|
Over 24 (610) to
30 (760) incl.
|
¼
(6.4)
|
|
Over 30 (760) to
60 (1520) incl.
|
½
(12.7)
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Over 60 (1520) to
120 (3050) incl.
|
¾ (19)
|
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Over 120 (3050)
to 156 (3960) incl.
|
1 (25)
|
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Over 156 (3960)
to 192 (4880) incl.
|
1¼
(32)
|
|
Over 192 (4880)
to 240 (6100) incl.
|
1½
(38)
|
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Over 240
(6100)
|
1¾
(44).
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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.
|
Flatness
Tolerances
|
Hot Rolled Sheet
Coils and Cut Lengths †
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)
|
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Specified Yield Strength,
min. ksi
|
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Under 45
|
45 to 50
|
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Over .057 (1.37) to .180 (4.57)
|
Through 60 (1520) incl.
|
½
(12.7)
|
¾ (19.0)
|
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Over 60 (1520) to 72 (1830) incl.
|
¾ (19.0)
|
1
1/8(30.2)
|
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Over 72 (1830)
|
1 (25.4)
|
1 ½ (38.1)
|
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Over .180 (4.57) to .230 (5.84) incl.
|
Through 48 (1220) incl.
|
½
(12.7)
|
¾ (19.0)
|
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Over 48 (1220)
|
Subject to Negotiation
|
Subject to Negotiation
|
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Over .230 (5.84)
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All widths
|
Subject to Negotiation
|
Subject to Negotiation
|
†The above
flatness tolerances also apply to lengths cut from coils by the
consumer only when adequate
flattening operations are performed.
Camber 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.
|
Camber
Tolerances
These tolerances do not apply when
stretcher level standard of flatness is specified
|
Hot Rolled
Carbon and High Strength Low Alloy Sheet
Cut Lengths Not Resquared,
Including Pickled
Camber is defined as the deviation of a
side edge of hot rolled sheet from a straight line, in a length of
20 feet
(6.1 m).
|
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Cut
length, feet (m)
|
Camber tolerances, inch (mm)
|
|
To
4 (1.2) incl.
|
1/16 (1.6)
|
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Over 4 (1.2) to 8 (2.4) incl.
|
1/8 (3.2)
|
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Over 8 (2.4) to 12 (3.7) incl.
|
3/16 (4.8)
|
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Over 12 (3.7) to 14 (4.3) incl.
|
¼ (6.4)
|
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Over 14 (4.3) to 16 (4.9) incl.
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5/16 (8.0)
|
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Over 16 (4.9) to 18 (5.5) incl.
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3/8 (9.5)
|
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Over 18 (5.5) to 20 (6.1) incl.
|
7/16 (11.0)
|
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Over 20 (6.1) to 30 (9.1) incl.
|
5/8 (16.0)
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Over 30 (9.1) to 40 (12.2) incl.
|
¾ (19.0)
|
The camber tolerance for coils is ½ inch (12.7mm) in any 20
feet (6.1 m). Applies only to temper rolled product.
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|
