INTERNATIONAL ISO

STANDARD 16160

Fourth edition
2012-11-15

Hot-rolled steel sheet products —

Dimensional and shape tolerances
Tôles en acier laminées à chaud — Tolérances sur dimensions et forme

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Reference number
ISO 16160:2012(E)

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Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International
Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies
casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 16160 was prepared by Technical Committee ISO/TC 17, Steel, Subcommittee SC 12, Continuous mill
flat rolled products.
This fourth edition cancels and replaces the third edition (ISO 16160:2011), which has been
technically revised.
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INTERNATIONAL STANDARD ISO 16160:2012(E)

Hot-rolled steel sheet products — Dimensional and

shape tolerances

1 Scope
This International Standard applies to dimensional and shape tolerances for all hot-rolled steel
sheet products.
NOTE Hot-rolled steel strip and hot-rolled heavy-thickness steel sheet coils are not covered by this
International Standard.

2 Dimensional and shape tolerances

Dimensional and shape tolerances are given in Tables 1 to 9.

Table 1 — Thickness tolerances for hot-rolled sheet steel (including descaled sheet), coils
and cut lengths
Dimensions and tolerances in millimetres

Specified iTeh STANDARD PREVIEW Thickness tolerancea

for specified thicknessesb, c, d
width
0,8 ≤ 1,5 (standards.iteh.ai)
> 1,5 ≤ 2,0 > 2,0 ≤ 2,5 > 2,5 ≤ 3,0 > 3,0 ≤ 4,0 > 4,0 ≤ 5,0 > 5,0 ≤ 6,0 > 6,0 ≤ 8,0 > 8,0 ≤ 10,0 > 10,0 ≤ 12,5
600 ≤ 1 200 ± 0,13 ± 0,14 ± 0,15 ± 0,16 ± 0,18 ± 0,20 ± 0,22 ± 0,25 ± 0,27 ± 0,30
> 1 200 ISO 16160:2012
± 0,14 ± 0,15 ± 0,16 ± 0,18 ± 0,20 ± 0,22 ± 0,24 ± 0,26 ± 0,28 ± 0,31
≤ 1 500 https://standards.iteh.ai/catalog/standards/sist/42b5e686-c797-4127-b7fc-
> 1 500 3ec1cc5fe5de/iso-16160-2012
— ± 0,15 ± 0,18 ± 0,20 ± 0,22 ± 0,24 ± 0,25 ± 0,26 ± 0,29 ± 0,32
≤ 1 800
> 1 800 — — ± 0,21 ± 0,22 ± 0,23 ± 0,25 ± 0,26 ± 0,30 ± 0,34 ± 0,38
The values specified do not apply to the uncropped ends for a total length, l, of a mill edge coil. The total length, l, would be calculated
using the following formula:

90
    Total length, l, in metres =
Thickness in millimetres
provided that the result was not greater than 20 m, inclusive of both ends.
When International Standards that reference this standard permit slitting sheet to less than 600 mm in width to be considered as sheet,
tolerances shall be subject to agreement.
a For specified strength levels of Re = 360 N/mm2 and greater, increase the thickness tolerances by 10 % applying normal
rounding-off procedures.
b Thickness is measured at any point on the sheet not less than 25 mm from a sheared edge and 40 mm from a mill edge.
Points closer than these are subject to negotiation.
c The specified thickness-range captions apply as a specific value.
d The tolerances provided in this table are based on normal thickness (tolerance over and under). For ordered thicknesses
other than nominal, the total tolerance is twice the tabled value and may be distributed as agreed upon between the buyer
and seller.

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Table 2 — Width tolerances for coils and cut lengths (including descaled material), mill edge
Dimensions and tolerances in millimetres
Specified width Tolerance
+ 20
≤ 1 500 0

The values specified do not apply to the uncropped ends for a total length, l, of a mill edge coil.
The total length, l, would be calculated using the formula:

90
    Total length, l, in metres =
Thickness in millimetres
provided that the result was not greater than 20 m, inclusive of both ends.

Table 3 — Width tolerances for coils and cut lengths (including descaled material), sheared
edge, not resquared
Dimensions and tolerances in millimetres
Specified width Tolerance
+3
≤ 1 200 0
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+5
> 1 200 ≤ 1 500 (standards.iteh.ai) 0

ISO 16160:2012 +6
> 1 500 0
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NOTE For resquared material, more restrictive tolerances are subject to negotiation.

Table 4 — Length tolerances for cut lengths (including descaled material), not resquared
Dimensions and tolerances in millimetres
Specified length Tolerance
+ 10
≤ 2 000 0

+ 0,5 % × length
> 2 000 ≤ 8 000 0

+ 40
> 8 000 0

NOTE For resquared material, more restrictive tolerances are subject to negotiation.

Table 5 — Camber tolerances for coils and cut lengths (including descaled material), not resquared
Dimensions and tolerances in millimetres
Form Camber tolerance
Coils 25 in any 5 000 length
Cut lengths 0,5 % length
NOTE For resquared material, more restrictive tolerances are subject to negotiation. The values specified do not apply to
the uncropped ends of a mill edge coil for a total length of 7 m. Camber is the greatest deviation of a side edge from a straight
line, the measurement being taken on the concave side with a straight edge as shown in Figure 1.

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Table 6 — Out-of-square tolerance for cut lengths (including descaled material), not resquared
Dimensions Out-of-square tolerance
All thicknesses and all sizes 0,7 % × width
NOTE Out-of-square is the greatest deviation of an edge from a straight line, at right angles to a side and touching one
corner, the measurement being taken as shown in Figure 2. It can also be measured as one-half of the difference between the
diagonals of the cut-length sheet.

Table 7 — Out-of-square tolerance for resquared material (including descaled material)

Dimensions and tolerances in millimetres
Out-of-square tolerance
Specified length Specified width
≤ 6 mm thickness
≤ 3 000 +1
≤ 1 200 0

+2
> 1 200 0

+2
> 3 000 All widths 0

NOTE Out-of-square is the greatest deviation of an edge from a straight line at right angles to a side and touching one
corner, the measurement being taken as shown in Figure 2. It can also be measured as one-half of the difference between the
diagonals of the cut-length sheet. When measuring material to resquared tolerances, consideration may have to be given to
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extreme variations in temperature.

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Table 8 — Standard flatness tolerances for cut lengths (including descaled material)
ISO 16160:2012 Dimensions and tolerances in millimetres
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Flatness tolerance
Specified thick- 3ec1cc5fe5de/iso-16160-2012
Specified strength level of Re
Specified width
ness
< 220 MPa ≥ 220 ≤ 340 MPa > 340 MPa
≤ 1 200 21 26 32
≤2 > 1 200 ≤ 1 500 25 31 38
> 1 500 30 38 45
≤ 1 200 18 22 27
>2 > 1 200 ≤ 1 500 23 29 34
> 1 500 28 35 42
NOTE Maximum deviation from a flat horizontal surface: with the sheet lying under its own weight on a flat surface, the
maximum distance between the lower surface of the sheet and the flat horizontal surface is the maximum deviation from
flatness as shown in Figure 3. This table also applies to sheet cut to length from coil by the customer when agreed-upon
flattening procedures are performed.

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Table 9 — Restricted flatness tolerances for cut lengths (including descaled material)
Dimensions and tolerances in millimetres
Flatness tolerance
Specified thick-
Specified width Specified strength level of Re
ness
< 220 MPa ≥ 220 ≤ 340 MPa > 340 MPa
≤ 1 200 18 20 25
≤2 > 1 200 ≤ 1 500 20 25 32
> 1 500 25 30 40
≤ 1 200 16 18 23
>2 > 1 200 ≤ 1 500 20 23 30
> 1 500 25 28 38
NOTE Maximum deviation from a flat horizontal surface: with the sheet lying under its own weight on a flat surface, the
maximum distance between the lower surface of the sheet and the flat horizontal surface is the maximum deviation from
flatness as shown in Figure 3. This table also applies to sheet cut to length from coil by the customer when agreed-upon
flattening procedures are performed.

More restrictive tolerances may be negotiated.

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Key
1 edge camber
2 side edge (concave side)
3 straight edge

Figure 1 — Measurement of camber

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Key
1 out-of-square
2 straight edge
3 side edge

Figure 2 — Measurement of out-of-square

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1 maximum deviation from flatness
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Figure 3 — Measurement of flatness

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