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  • Continuously Hot-rolled Uncoated Plate
  • Continuously Hot-rolled Uncoated Plate

Continuously Hot-rolled Uncoated Plate

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toux Janet Chang

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Specification, Chemical & Mechanical Performance

Mainly supplied in forms of coil, sheet, plate, rod, bar, tube, pipe, beam, angle, flange, wire, strip, channel, etc., with various varieties, wide range of dimensions, high purity, stable chemical composition, high dimensional accuracy and excellent surface quality, the products are mainly used in the fields of industries such as automobile engineering, railway transportation, aviation, aerospace, machinery, petrochemical, energy, environmental protection,offshore, chemical, oil & gas, military, power plant, nuclear power, pressure vessel, boiler equipment, mold manufacture,etc..

  • Boiler and pressure vessel steel
  • Pipeline steel
  • Bridge steel
  • Nuclear power steelStructural steel
  • Die steel
  • High strength steel
  • Abrasion resistant steel
  • Weathering, corrosion resistant and fire resistant steel
  • High rise building steel
  • Shipbuilding and offshore engineering steel

 

Continuously Hot-rolled Uncoated Plate

 

TOLERANCE OF THICKNESS Dimensions in [mm]
continuously hot-rolled low carbon steel sheet/plate for cold forming
Nominal Tolerances for a nominal width
Thickness ≤1200 >1200 >1500 >1800

≤1500 ≤1800
≤2.00 ±0.13 ±0.14 ±0.16 -
>2.00 ≤2.50 ±0.14 ±0.16 ±0.17 ±0.19
>2.50 ≤3.00 ±0.15 ±0.17 ±0.18 ±0.20
>3.00 ≤4.00 ±0.17 ±0.18 ±0.20 ±0.20
>4.00 ≤5.00 ±0.19 ±0.20 ±0.21 ±0.22
>5.00 ≤6.00 ±0.20 ±0.21 ±0.22 ±0.23
>6.00 ≤8.00 ±0.22 ±0.23 ±0.23 ±0.26

 

 

TOLERANCE OF THICKNESS
Steels exhibiting a high deformation resistance at elevated temperatures
Tolerances for a nominal width
Class B Class C Class D
Expansion 15% Expansion 30% Expansion 40%
TOLERANCE OF LENGTH  Dimensions in [mm]
Nominal Length Tolerances
Lower Upper
<2000 0 10
≥2000 <8000 0 40
≥8000 0 40

 

 

TOLENRANCE OF WIDTH     Dimensions in[mm]
Nominal Width Mill Edges Trimmed Edges
Lower Upper Lower Upper
≤1200 0 20 0 3
>1200 ≤1500 0 20 0 5
>1500 0 25 0 6

Tolerances for trimmed edges apply to products with nominal thicknesses ≤ 10 mm, 

for nominal thickness > 10 mm the upper tolerances shall be agreed at the time of enquiry and order.

 

 

TOLERANCE OF STRAIGHTNESS Class A    Dimensions in[mm]
Nominal Thickness Nominal Width Tolerances on flatness
Normal Special
≤2.00 ≤1200 18 9
>1200 ≤1500 20 10
>1500 25 13
>2.00 ≤25 ≤1200 15 8
>1200 ≤1500 18 9
>1500 23 12

 

 

TOLERANCE OF STRAIGHTNESS Class B,C,D    Dimensions in [mm]
Nominal Thickness Nominal Width Tolerances on flatness for classes
Class B Class C Class D
≤25 ≤1200 18 23 Shall be agreed at the time of enquiry and order
>1200 ≤1500 23 30
>1500 28 38

 

 

TOLERANCE OF THICKNESS Dimensions in [mm]
Sheet/plate made OF steels with a normal deformation
resistance AT elevated temperatures [ Class A
Nominal Tolerances for a nominal width
Thickness ≤1200 >1200 >1500 >1800

≤1500 ≤1800
≤2.00 ±0.17 ±0.19 ±0.21 -
>2.00 ≤2.50 ±0.18 ±0.21 ±0.23 ±0.25
>2.50 ≤3.00 ±0.20 ±0.22 ±0.24 ±0.26
>3.00 ≤4.00 ±0.22 ±0.24 ±0.26 ±0.27
>4.00 ≤5.00 ±0.24 ±0.26 ±0.28 ±0.29
>5.00 ≤6.00 ±0.26 ±0.28 ±0.29 ±0.31
>6.00 ≤8.00 ±0.29 ±0.30 ±0.31 ±0.35
>8.00 ≤10.00 ±0.32 ±0.33 ±0.34 ±0.40
>10.00 ≤12.50 ±0.35 ±0.36 ±0.37 ±0.43
>12.50 ≤15.00 ±0.37 ±0.38 ±0.40 ±0.46
>15.00 ≤25.00 ±0.40 ±0.42 ±0.45 ±0.50
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