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Hot-rolled Flat Products Production programme ArcelorMittal Ostrava
Hot-rolled Flat ProductsProduction programme
ArcelorMittal Ostrava
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4 Technology Description and Used Terminology
6 Steel Grades, Chemical Composition
10 Semi-Finished Products (Continuously Cast Blanks)
12 Hot-rolled Wide Strips
14 Slit Hot-Rolled Wide Strips
16 Hot-Rolled Sheet Metal
18 Hot-Rolled Sheet Metal and Strips with Oval Stumps
20 Hot-Rolled Strips and Sheet Metal with Increased Resistance to Atmospheric Corrosion
Contents
ArcelorMittal Ostrava is the holder of the Quality Management System certificate according to ČSN EN ISO 9001:2000 and of EN ISO 14001:2004 certificate awarded by the German TÜV NORD company.
ArcelorMittal Ostrava a.s. is certified for the whole range of hot-rolled products of width between 20 mm and 1550 mm and thickne-ss between 1.5 mm and 15.0 mm.
ArcelorMittal Ostrava Certification
ArcelorMittal Ostrava an established producer of top quality steel products
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The ArcelorMittal Ostrava a.s. company is the largest steel-making company in the Czech Republic and a part of the world‘s largest steel producer - the ArcelorMittal company.
In ArcelorMittal Ostrava a.s., production of hot-rolled flat products has a long-time tradition. Manufacturing of hot-rolled strips started in 1958. Between 1997 and 1999 the production facility for manufacturing of hot-rolled strips underwent a fundamental modernization. In 1997 a slab continuous casting facility was put in operation and in 1999 a new wide-strip mill - P 1500 Stec-kel followed. Manufacturing capacity of the Steckel wide-strip mill is 1,27 mill. tons of hot-rolled wide strips per year. It was not only a substantial diversification in strips in terms of size and quality that the mill brought about. It also created conditions for further enrichment of the product range by new steel grades destined for production of hot-rolled strips.
Technology Description and Used Terminology
IntroductionDear customers,You are in receipt of an offer catalogue of hot-rolled flat products, which are produced in ArcelorMittal Ostrava a.s. This catalogue represents the basic offer of hot-rolled flat products and shall gradually be extended and refined in new editions through acquiring of a new technology at the wide-strip Steckel rolling mill.
Description of production technologySteel for production of flat products is produced by oxygen procedure in the 200-ton tilting tandem furnace at the Plant 13 - Steel Plant. In 2/3 the basic input raw material of the melting charge is hot metal and remaining 1/3 is steel scrap, scrap iron, sponge iron and iron ore.
Production of hot-rolled wide strips
Liquid steel is transported in ladles to the Minimill area where the steel is processed at the ladle furnace.
The following operations take place at the ladle furnace:
- temperature and chemical homogenization - steel deoxidation and accurate alloying to achieve the required chemical composition - desulphurization - reduction of non-metallic inclusions contents - adjustment of temperature to the specified casting temperature
After secondary steel processing at the ladle furnace is finished, the ladle containing treated steel is embedded in the turret and steel is cast through the tundish into the mold. At the slab, continuous caster blanks of width from 740 mm to 1575 mm and of 150 mm thickness are cast. Continuously cast blanks are cut up to pieces of max. 18 m length by fuel burner.Continuously cast blanks are transported in hot condition by a roller conveyer to the reheating and equalizing walking beam furnace. After heating to the rolling temperature slabs are transported to the rolling mill stands of the P-1500 Steckel rolling mill. After descaling, slabs are guided into the double-stand tandem reversing rolling mill with one vertical edging mill. The rolling mill is equipped with two furnace coilers equalizing the temperature of the hot strip and reducing its cooling during rolling. The process of rolling itself is fully automated.
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After the last pass through the mill stand, the strip is guided by the roll table through 7 sections of laminar cooling into the finished strip coiler. After coiling, adjustment and marking coils are transported to the storage area. Hot-rolled strips from the Steckel wide-strip mill can be delivered directly to customers for further processing or transported to shearing lines. Shearing lines allow trimming of coil side edges, cutting of 33 t coils to coils of lower total weight, slitting of wide strips to narrow strips and cutting of strips into sheets. At present there are 3 slitting lines and 2 cut-to-length lines for sheets production.A part of the plant for flat hot-rolled products of ArcelorMittal Ostrava, a.s. are 4 roll forming lines where open steel cold rolled products and steel road barriers are produced from slitted strips.The production facility of the Steckel rolling mill is projected for a yearly output of approximately 1 000 000 tons of hot-rolled flat products.By means of gradual technical measures, the yearly production output has been increased up to 1 270 000 tons. At the end of 2008, a new – the third cut-to-length line shearing coils into sheets will be put into operation. This cut-to-length line will allow to shear strips into sheets from internal coils of 15,0 mm thickness and from external coils up to 18,0 mm thickness and up to 2000 mm of width.
Used terminologyNames of products used in this catalogue are in conformity with the ČSN EN 10079:2007 standard – “Definitions of steel products”.
Semi–finished products (continuously cast blanks)
Semi–finished products are continuously cast blanks (slabs) destined for the production of hot-rolled strips.
Hot-rolled strips without coating
Both European and national standards distinguish two basic types of hot-rolled flat products: hot-rolled strips and hot-rolled sheets.
The hot-rolled strip without coating is a hot-rolled product which is coiled immediately after passing through the finishing mill stand. After rolling has been finished, the hot-rolled strip has either slightly rounded edges or trimmed edges, in case of slit wide strip.
Hot-rolled strips are divided into: - Hot-rolled wide strips (of 600 mm width or more) - Slit hot-rolled wide strips (of 600 mm rolled width or more and under 600 mm after slitting)
Hot-rolled sheets without coating
The hot-rolled sheet without coating is a hot-rolled product with clear edge forming, supplied in tables and with surface in condition after rolling, mostly of square shape and of width equal to or above 600 mm. Edges are either in condition after rolling (natural edges) or trimmed.
- Sheets are produced by cutting of the wide strip at the continuous mill train. The product is generally called a hot-rolled sheet or plate.
In terms of thickness, flat products are divided into - Thin sheets and strips ( of thickness below 3.0 mm) - Thick sheets (plates) and strips (of thickness above or equal to 3.0 mm)
Steel grades, chemical composition
Chemical analyses of steels which are stated in the tables of grades suitable for production of hot-rolled strips should be considered as informative ones. The chemical composition of steels according to various standards can differ in contents of individual elements. For standard supplies, the determinant is the content of elements specified in the respective standard. If agreed by the production plant, steel strips with modified chemical composition can also be supplied.
Basic offer of steel grades
Structural steels
EN 10025-2 ČSN C Mn Si P S Al Utilization
Structural steels
11 343max.0.16
max.0.045
max.0.045
Structural steel suitable for stamping and production of welded components.
S235JR 11 375max.0.17
max.0.045
max.0.045
Structure and machine components of medium thickness, fusion welded, for production of pressure tanks with limited pressure and temperature of up to 300°C
S235J0S235J2
11 378max.0.17
max.0.040
max.0.040
min.0.020
Fine-grained structural steels suitable for cold forming.
Structural steels of major strength
11 425max.0.22
max.0.050
max.0.050
11 428max.0.22
max.0.045
max.0.045
min.0.020
S275JR 11 443max.0.20
Components of structures of low thickness, welded machine components.
S275J0 S275J2
11 448max.0.16
min.0.020
Welded dynamically stressed structures operating at both lowered and elevated temperatures
S355JR S355J0S355J2
11 523max.0.20
max.1.60
max.0.55
max.0.040
max.0.040
min.0.020
Fine-grained structural steel suitable for cold forming
Steels for cold forming
EN 10111 ČSN C Mn Si P S Al Utilization
Steels for cold forming
DD11 11 321max.0.12
max.0.60
max.0.045
max.0.045
Structural steel suitable for cold forming.
DD12 11 325max.0.10
max.0.45
max.0.035
max.0.035
min.0.025 *)
Structural steel suitable for cold forming.
DD11 11 331max.0.12
max.0.60
max.0.045
max.0.045
Structural steel suitable for cold forming.
Structural steels for extra
deep cold forming
DD13 11 305max.0.08
max.0.40
max.0.030*)
max. 0.030
max. 0.030
min.0.025 *)
Steel suitable for extra deep cold forming.
DD14max.0.08
max.0.035
max.0.025
max.0.025
Steel suitable for extra deep cold forming.
*) Data in these paragraphs are valid only for steels conforming with ČSN 41 1325 and ČSN 41 1305 standards..
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Extended offer of steel grades
Hot-rolled strips and sheets of steel grades stated in the extended offer can be supplied if agreed with the production plant. The possibility of a delivery depends on the total volume of the required steel grade, the ordered quantity in the required width (of strips and sheets), the strip version and the term of delivery.
Structural carbon steels
EN 10025-2 ČSN C Mn Si P S Al Use
Structural carbon steels
E 295 11 500max.
0.045max.
0.045Statically and dynamically stressed machine components in which weldability is not required.
E 335 11 600max.
0.045max.
0.045
Low-grade structural steel for machine components in which weldability is not required, suitable for bending.
E 360 11 700max.
0.045max.
0.045Low-grade structural steel for manufacture of chains in which weldability is not required.
Structural carbon steels
EN 10083-2 ČSN C Mn Si P S Cr+Mo+Ni max. Use
Structural carbon steels
C22E C22R
12 0220.17
÷0.24
0.40÷
0.70max. 0.40 max. 0.030
max. 0.035 0.020 ÷ 0.40
0.063
C35C35EC35R
12 0400.32
÷0.39
0.50÷
0.80max. 0.40
max. 0.045max. 0.030max. 0.030
max. 0.045 max. 0.035
0.020 ÷ 0.400.063
C40C40EC40R
12 0410.37
÷0.44
0.50÷
0.80max. 0.40
max. 0.045max. 0.030max. 0.030
max. 0.045 max. 0.035
0.020 ÷ 0.400.063
Suitable for various components, springs.
C45C45EC45R
12 0500.42
÷0.50
0.50÷
0.80max. 0.40
max. 0.045max. 0.030max. 0.030
max. 0.045 max. 0.035
0.020 ÷ 0.400.063
Suitable for manufacture of springs and chains.
C50EC50R
12 0510.47
÷0.55
0.60÷
0.90max. 0.40
max. 0.030max. 0.030
max. 0.035 0.020 ÷ 0.40
0.063 Steel for heat treatment.
C55C55EC55R
12 0600.52
÷0.60
0.60÷
0.90max. 0.40
max. 0.045max. 0.030max. 0.030
max. 0.045 max. 0.035
0.020 ÷ 0.400.063
Suitable for manufacture of springs and chains.
C60C60EC60R
12 0610.57
÷0.65
0.60÷
0.90max. 0.40
max. 0.045max. 0.030max. 0.030
max. 0.045 max. 0.035
0.020 ÷ 0.400.063 Steel for heat treatment.
C67S 1) 12 0710.60
÷0.70
0.60÷
0.80max. 0.35 max. 0.035 max. 0.035
Suitable for manufacture of springs and chains, as annealed with good hardenability, but limited cold formability.
1) The C575 steel grade is produced in conformity with the EN 10134-4:2000 standard.
Steel grades, chemical composition
Micro-alloyed steel grades
Steel grade according to DIN 17172
Steel grade according to EN 10 208-2
Steel grade according to API SPEC 5L
Note
Micro-alloyed steels
for productionof spiral weld pipes
StE 290.7 TM L 290 MB
StE 320.7 TM
StE 360.7 TM L 360 MB X46, X52
StE 385.7 TM X56
StE 415.7 TM L 415 MB X60
StE 445.7 TM L 450 MB X65 Stated steel grades are in the stage of production technology verification at the P-1500 Steckel mill. The possibility of a delivery is to be agreed with the
production plant.StE 480.7 TM L 485 MB X70
Micro-alloyed steel grades
SEW 092 EN 10149-2 Note
Micro-alloyed steels for cold
forming
S 315 MC
QStE 340 TM
S 350 MC
QStE 380 TM
QStE 420 TM S 420 MC
QStE 460 TM S 460 MC
QStE 500 TM S 500 MC Stated steel grades are in the stage of production technology verification at the P-1500 Steckel mill. The possibility of
a delivery is to be agreed with the production plant.QStE 550 TM S 550 MC
Micro-alloyed steel grades
Steel grade according to SEW 093
CMn
max.Si P S
Almin.
Nbmax.
Timax.
Micro-alloyed steels for cold
rolling
ZStE 260 0.10 0.60 0.5 0.03 0.03 0.015 0.09 0.22
ZStE 300 0.10 0.80 0.5 0.03 0.03 0.015 0.09 0.22
ZStE 340 0.10 1.00 0.5 0.03 0.03 0.015 0.09 0.22
ZStE 380 0.10 1.20 0.5 0.03 0.03 0.015 0.09 0.22
ZStE 420 0.10 1.4 0 0.5 0.03 0.03 0.015 0.09 0.221) ZstE steel grades are supplied only in the form of a hot-rolled strip, as a semi-finished product destined for further cold rolling.2) Micro-alloyed steel grades for cold rolling are in the stage of production technology verification at the P 1500 Steckel mill. The possibility of a delivery has to be agreed with the production plant.
Steels with increased resistance to atmospheric corrosion
Steel grade according to ČSN, KN ČSN EN 10025-5 Note
Steels with increased
resistance to atmospheric
corrosion
15 117S235J0WS235J2W
The possibility of a delivery are to be agreed with the producer.15 217
S355J0W S355J0WPS355J2WP
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Table of comparison of steel grades
EN 10025-2 EN 10111Steel grade according to
ČSN EN 10025+A1:1993 ČSN DIN 17100:1980 DIN 1614:1986
DD13DD14
11 305 St 22, StW 22
DD11 11 321 RRSt 23, RRStW 23
DD12 11 325 St 22, StW 22
DD11 11 331
11 343
S235JR 11 375 St 37-2, RSt 37-2
S235JR S235JRG2 11 375 St 37-2, RSt 37-2
S275J0
S275J2
S235J0S235J2G3S235J2G4
11 378 St 37-3
11 425
11 428
S275JR S275JR 11 443 St 44-2
S275J0
S275J2
S275J0S275J2G3S275J2G4
11 448 St 44-3
S355JRS355J0
S355J2
S355JRS355J0
S355J2G3S355J2G4
11 523 St 52-3
Table of comparison of steel grades
EN ČSNSteel grade according to
DIN 17100:1980 DIN 17200:1987 DIN 17222:1979
E 295 11 500 St 50-2
E 335 11 600 St 60-2
E 360 11 700 St 70-2
C35, C35E, C35R 12 040 C35, Ck35, Cm 35
C40, C40E, C40R 12 041 C40, Ck40, Cm40
C45, C45E, C45R 12 050 C45, Ck45, Cm45
C50E, C50R 12 051 C50, Ck50, Cm50
C55, C55E, C55R 12 060 C55, Ck55, Cm55 C55, Ck55
C60, C60E, C60R 12 061 C60, Ck60, Cm60 C60, Ck60
C67S* 12 071 C67, Ck67
*) The stated steel grade is produced in conformity with the EN 10134-4:2000 standard.
Semi-finished products (continuously cast blanks)
Semi-finished products are flat continuously cast blanks (slabs) destined for the production of hot-rolled strips at the P-1500 Steckel wide-strip rolling mill. They are produced at the continuous casting machine with the yearly capacity of approximately 1,27 million tons.Continuously cast blanks can be supplied of 150 mm thickness and of length between 5.9 and 18 m. Their width ranges from 740 to 1575 mm. For deliveries of blanks, only chemical composition is guaranteed while mechanical values (tensile strength etc.) are not.
Basic parameters of flat continuously cast blanks (slabs)
Parameter
Width min.max.
740 1 575
mmmm
Thickness 150 mm
Length min.max.
5 90018 000
mmmm
Weight min.max.
5 10033 000
kgkg
Limit thickness tolerances ±5 mm
Limit width tolerances ±10 mm
Limit length tolerances+75
-25mm
Weight of semi-finished products
The following graph shows the approximate weight of continuously cast blanks in relation to width:
slab width (mm)
slab
wei
ght
(kg)
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Delivery of semi-finished products
Surface - continuously cast blanks are supplied with surface after casting (scaled) without any further treatment.
Marking of continuously cast blanks - blanks supplied from the hot strip minimill are marked with a 12-figure code which is sprayed on the face of the slab with an aluminium paint. The code includes the following identification data: - 6 figures - heat number - 3 figures - blank order in the casting strand - 3 figures - blank width in cm
Method of storage during transport - wooden pads are used under continuously cast blanks transported on platform wagons.
Hot-rolled wide strips
Hot-rolled wide strips are produced at the P-1500 Steckel wide-strip rolling mill in steel grades stated in the section on steel grades. Chemical composition and characteristic properties of hot-rolled wide strips conform with the following dimensional standards (if agreed with the production plant, wide strips produced according to old standards not stated below can also be supplied).
ČSN EN 10051:1996 + A1:2000 – “Continuously hot-rolled uncoated plate, sheet and strip of non-alloy and alloy steels – Tolerances for dimensions and shape“.
Dimensions produced
TypeStrip width 1) 2)
mm
Strip thickness 2)Coil parameters
Inside diameter Outside diameter Specific weight
mm mm
Hot-rolled wide strip
980 ≤ 1 050 1.5 ≤ 13.0 (15) 3)
cca 762min. 1 400max. 2 100
as per the width required 18 – 21 kg/mm of strip
width (max. 33 t)
> 1 050 ≤ 1 200 1.6 ≤ 13.0 (15) 3)
> 1 200 ≤ 1 250 1.8 ≤ 13.0 (15) 3)
> 1 250 ≤ 1 550 2.5 ≤ 13.0 (15) 3)
1) Hot-rolled strips of width from 740 up to < 980 mm are produced and supplied in limited quantity and after agreement with the production plant.2) Dimensions apply to structural steels and cold-rolled steels according to the basic steel grades. For other steel grades, further limitations are applied. Specific possibilities of hot-rolled strips deliveries must be discussed
with the production plant and respective sales persons.3) Hot-rolled strips are regularly supplied in the S235JR steel grade in thickness up to 15.0 mm. Supplies of hot-rolled strips of S235J0 and S235J2 steel grades, possibly of higher steel grades in thickness between
13.0 mm and 15.0 mm must be discussed with the production plant and respective sales persons.
Tolerances of dimensions
Limit dimensions and shape tolerances of hot-rolled wide strips abide to full extent by the standard ČSN EN 10051:1996+A1:2000.
Thickness tolerances
Limit thickness tolerances of steel strips (sheets) of steels with normal deformation resistance at elevated temperatures:
Nominal thickness (mm)
Limit tolerances for nominal thickness 1) 2) (dimensions in mm)
≤ 1200 > 1200 ≤1500 > 1500
≤ 2.00 ±0.17 ±0.19 ±0.21
> 2.00 ≤ 2.50 ±0.18 ±0.21 ±0.23
> 2.50 ≤ 3.00 ±0.20 ±0.22 ±0.24
> 3.00 ≤ 4.00 ±0.22 ±0.24 ±0.26
> 4.00 ≤ 5.00 ±0.24 ±0.26 ±0.28
> 5.00 ≤ 6.00 ±0.26 ±0.28 ±0.29
> 6.00 ≤ 8.00 ±0.29 ±0.30 ±0.31
> 8.00 ≤ 10.00 ±0.32 ±0.33 ±0.34
> 10.00 ≤ 12.50 ±0.35 ±0.36 ±0.37
> 12.50 ≤ 13.00 (15.0) ±0.37 ±0.38 ±0.40
1) If agreed with the production plant, hot-rolled strips with more precise width tolerances can be supplied.2) The limit tolerances of steels with high deformation resistance at elevated temperatures are scaled up in relation to steel grades.
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Width tolerances
Strip width (mm)
Limit width tolerance for strips with natural edges (mm)
lower upper
≤ 1200 0 20
> 1200 ≤ 1500 0 20
> 1500 0 25
Delivery of hot-rolled wide strips
Surface – coils are supplied with surface after hot rolling (scaled) without any further treatment.
Coil weight – the following graph shows the approximate weight of coils in relation to the strip width. Wide hot-rolled strips are regularly supplied in coils of specific weight ranging from 18.0 to 21.0 kg/mm of width. (Coils of lower specific weight can be supplied if agreed with the production plant). With maximum coil width of 1550 mm, the maximum coil weight is 33 tons.
Coil marking – coils supplied from the P-1500 Steckel rolling mill are provided with the following data sprayed on the coil:• Production order • Steel grade • Strip dimensions • Heat number • Product ID (product identification code) • Coil weight
Identification data can also be printed on a sticking label which is stuck on the agreed point of the coil after it has cooled down.
Coil binding - wide coils (supplied from the P-1500 Steckel rolling mill with natural edge) are bound around the perimeter with a cyclopean tape of 32 x 1 mm depending on the place of destination.
Standard number of points of perimeter bindings: • strips up to 1200 mm of length - 2 • strips over 1200 mm of length - 3
(If agreed with the production plant, coils can be provided with more perimeter bindings or with cross bindings).Method of storage during transport - coils are stored on steel pallets (approx. weight from 778 to 1230 kg) with the axis in horizontal position or in special railway wagons destined to coils transport.
Coil width (mm)
Coi
l wei
ght
(kg)
Slit hot-rolled wide strips
Slit hot-rolled wide strips from the P-1500 Steckel wide-strip rolling mill are manufactured with the use of cold slitting or trimming (of edges) on slitting lines of the production plant. These products are produced in conformity with the following dimensional standard:
ČSN EN 10051:1996 + A1:2000 – “Continuously hot-rolled uncoated plate, sheet and strip of non-alloy and alloy steels – Tolerances for dimensions and shape”.
Dimensions produced
Width 2)
Thickness of slit strip 2) Coil parameters
1.5 ≥ 1.6 ≥ 1.8 ≥ 2.5 > 5.0 > 6.0 > 7.0Inside coil parameter
Outside coil parameter
Specific coil weight 1)to
< 1.6 < 1.8 < 2.5 ≤ 5.0 ≤ 6.0 ≤ 7.0 ≤ 8.0
mm mm mm
≥ 20 < 120 cca 600 max. 1 350According to required
width 7.0 – 9.0 kg/mm
≥ 120 < 200
cca 600(nebo cca 762) max. 2 100
According to required width 18 – 21 kg/mm of the strip width (max. 33
tons)
≥ 200 ≤ 1 030
≥ 200 ≤ 1 180
≥ 200 ≤ 1 230
≥ 200 ≤ 1 530
1 If agreed with the production plant, coiled narrow slit strips or trimmed wide strips (width from 120 to 1530 mm) of specific weight 9.0 - 10.5 kg/mm of width can be supplied. 2 Dimensions apply to structural steels and cold-rolled steels according to the basic steel grades. For other steel grades, further limitations are applied. Specific possibilities of hot-rolled strips deliveries must be discussed
with the production plant and respective sales persons.
Tolerances of dimensions
Limit thickness tolerances of the slit strip are to full extent those applicable to the wide strip. Limit width tolerances abide to full extent by the standard ČSN EN 10051:1996 + A1:2000.
Slit strip width
Limit width tolerance (dimensions in mm)
according to ČSN EN 10051:1996 + A1:2000 by agreement
lower upper lower upper
≥ 20 ≤ 1000 0 + 3 0 + 1
≥ 20 ≤ 1000 0 + 3 ± 0.5
> 1000 ≤ 1200 0 + 3 0 + 2
> 1200 ≤ 1500 0 + 5 0 + 3
> 1500 0 + 6 0 + 3
If agreed with the production plant, slit hot-rolled strips with more precise thickness and width tolerances can be supplied.
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Delivery of slit hot-rolled strips
Surface - coils are supplied with surface after hot rolling (scaled) without any further treatment.
Coil weight - the following graph shows the approximate weight of coils in relation to the strip width. With maximum coil width of 1550 mm, the maximum coil weight is 33 tons.
Coil marking – coils supplied from the P-1500 Steckel rolling mill are provided with a sticker with the following data:• Production order • Heat number • Steel grade • Coil weight • Strip dimensions (mm) • Products ID (product identification code)
Binding of coils and packs - coils of slit strips are bound around the perimeter with a cyclopean tape of 32 x 1 mm (C) and cross-wise with a cyclopean tape of 32 x 1 mm or a wire ø 2.5 mm (D) depending on the width and the place of destination. Standard number of points of perimeter and cross bindings are stated in the table. If agreed with the production plant, coils of slit strips can be provided with a different number of bindings.
Place of destination
Slit strip width [mm]
Binding (number of binding x type of binding material)
Separate coilsCoil packs
Coils inside packs Coil pack
Peripheral Transversal Peripheral Transversal Peripheral Transversal
Domestic+
export
≥ 20 < 60 – – – 2xD – 3xC
60 < 120 1xC 3xC 1xC 2xD – 4xC
≥ 120 1xC 3xC 1xC 2xD/3xC – 4xC
Overseas
≥ 20 < 60 – – – 2xD – 4xC
60 < 120 1xC 4xC 1xC 2xD – 4xC
≥ 120 1xC 4xC 1xC 2xD/3xC – 4xC
Method of storage during transport - coils are stored on steel pallets (approx. weight from 778 to 1230 kg) with the axis in horizontal position or in special railway wagons destined to coils transport.
Coil width (mm)
Coi
l wei
ght
(kg)
Hot-rolled sheet metal
Hot-rolled sheet metal is produced at the P-1500 Steckel wide-strip mill in coils which are further processed by cold cross-cutting at cut-to-length lines of the production plant. Thin and thick sheets in the table are produced in conformity with following dimensional standards:
ČSN EN 10051:1996 + A1:2000 – “Continuously hot-rolled uncoated plate, sheet and strip of non-alloy and alloy steels – Tolerances for dimensions and shape”.
Dimensions produced
VersionWidth Length
Sheet thickness
1.5 1) > 2.0 > 3.0 > 4.0 > 5.0 > 6.0 > 7.0 > 8.0 > 10.0
to
≤ 2.0 ≤ 3.0 ≤ 4.0 ≤ 5.0 ≤ 6.0 ≤ 7.0 ≤ 8.0 ≤ 10.0 ≤ 13.0
mm m mm
Standard sizes
1 000 2.0
1 250 2.5
1 500 3.0
Non-standard sizes
≥ 600 < 980 2) 1.0 – 12.0 2.0 ≤ 8.0 (13.0)
980 ≤ 1 050 1.0 – 12.0 1.5 ≤ 13.0 (15.0) 3)
> 1 050 ≤ 1 200 1.0 – 12.0 1.6 ≤ 13.0 (15.0) 3)
> 1 200 ≤ 1 250 1.0 – 12.0 1.8 ≤ 13.0 (15.0) 3)
> 1 250 ≤ 1 550 1.0 – 12.0 2.5 ≤ 13.0 (15.0) 3)
1 Hot-rolled sheet metal in thickness from 1.5 to 2.0 mm is produced within the width range stated in the manufacturing potential of the wide hot-rolled strips in coils at the Steckel rolling mill. Possibilities of supplies have to be agreed with the production plant.2 Hot-rolled sheets of width between 740 and 980 mm are produced and supplied in limited quantities and after agreement with the production plant. 3 Hot-rolled sheet metal with natural edge is supplied in steel grades S235JR and S235JRG2 in thickness of up to 15.0 mm. Supplies of hot-rolled sheet metal with natural edge of steel grades S235J0, S235J2, possibly of higher steel grades in thickness between 13.0 mm and 15.0 mm have to be discussed with the production plant and respective sales persons.
Tolerances of dimensions
Limit thickness tolerances of sheet metal are to full extent those applicable to wide strips. For limit width and length tolerances, the data stated in the following table are applied:
Sheet metal width (mm)
Limit width tolerance (dimensions in mm)Natural edges Trimmed edges
according to ČSN EN 10051 + A1 lower upper lower upper
≥ 600 ≤ 1 200 0 + 20 0 + 3
> 1 200 ≤ 1 500 0 + 20 0 + 5
> 1 500 0 + 25 0 + 6
Sheet metal length (mm) Limit length tolerances (dimensions in mm)
< 2 000 0 +10 0 +10
≥ 2 000 < 8 000 0 +0.005 x l 0 +0.005 x l
≥ 8 000 0 +40 0 +40
Limit dimension and shape tolerances of hot-rolled sheet metal abide to full extent by the standard ČSN EN 10051:1996+A1:2000. If agreed with the production plant, sheet metal with more precise thickness tolerances can be supplied. If agreed with the production plant, sheets of S235JR, S235J0 and S235J2 steel grades can also be supplied in thickness greater or equal to 5.00 mm and with dimensional tolerances according to the ČSN EN 10029:1995 standard.
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Delivery of sheet metalSurface – sheet metal is supplied with surface after hot rolling (scaled) without any further treatment. Sheet metal weight – the following table shows the approximate weight of sheet metal of basic width of 1000 mm:
Sheet metal thickness
(mm)
Sheet metal length (mm)1 000 2 000 3 000 4 000 5 000 6 000 7 000 8 000 9 000 10 000 11 000 12 000
Weight of sheet metal (of the width of 1000 mm) in kg
2 16 32 48 64 80 96 112 128 144 160 176 1922.5 20 40 60 80 100 120 140 160 160 200 220 2403 24 48 72 96 120 144 168 192 216 240 264 288
3.5 28 56 84 112 140 168 196 224 252 280 308 3364 32 64 96 128 160 192 224 256 288 320 352 384
4.5 36 72 108 144 180 216 252 288 324 360 396 4325 40 80 120 160 200 240 280 320 360 400 440 4806 48 96 144 192 240 288 336 384 432 480 528 5767 56 112 168 224 280 336 392 448 504 560 616 6728 64 128 192 256 320 384 448 512 576 640 704 7689 72 144 216 288 360 432 504 576 648 720 792 864
10 80 160 240 320 400 480 560 640 720 800 880 96011 88 176 264 352 440 528 616 704 792 880 968 1 05612 96 192 288 384 480 576 672 768 864 960 1 056 1 15213 104 208 312 416 520 624 728 832 936 1 040 1 144 1 248
Sheet metal marking – sheet metal supplied from the P-1500 Steckel rolling mill and the cut-to-length line is provided with sticking labels with standard printed data: • Production order • Heat number • Steel grade • Pack weight – number of sheets in the pack • Sheet dimensions (mm) • Sheet length (mm) • Product ID
Note: If agreed with the production plant, sticking labels can also be provided with different data specified by the customer.
Binding of sheet metal packs – sheet metal packs are bound crosswise with a cyclopean tape of 32 x 1 mm depending on the sheet length and transport method. Standard methods of binding are shown in following tables:
Number of loops for truck transportSheet length (mm) Number of transversal loops Number of longitudinal loops
≤ 3 000 3> 3 000 ≤ 4 500 4> 4 500 ≤ 6 000 5> 6 000 ≤ 7 500 6> 7 500 ≤ 12 000 7
Number of loops for railway and sea transportSheet length (mm) Number of transversal loops Number of longitudinal loops
≤ 2 000 2 2> 2 001 ≤ 2 300 3 2> 2 300 ≤ 3 000 3 2> 3 000 ≤ 3 500 4 2> 3 500 ≤ 4 200 5 2> 4 200 ≤ 5 000 6 2> 5 000 ≤ 5 800 7 2> 5 800 ≤ 6 600 8 2> 6 600 ≤ 7 400 9 2> 7 400 ≤ 8 100 10 2> 8 100 ≤ 8 800 11 2> 8 800 ≤ 9 500 12 2> 9 500 ≤ 12 000 13 2
Method of storage during transport – wooden pads are used under packs of hot-rolled sheet metal stored on the selected mean of transport.
Hot-rolled sheet metal and strips with oval stumps
Sheet metal and strips with relief are only supplied with oval stumps („tear-drop sheet metal and strips“). Hot-rolled strips with oval stumps in coils are produced and supplied according to technical delivery conditions of ArcelorMittal Ostrava, a.s. Strips and sheet metal with oval stumps in sheets are produced according to following dimensional standards:
ČSN 42 5392:1990 – “Hot-rolled sheets of 10 and 11 steel grades with oval stumps.”
DIN 59220:2000 – “Hot-rolled relief steel sheets – Dimensions, weight, tolerance.”
TP NH – 222/02 – “Wide steel strips with oval stumps in coils – hot-rolled at the P-1500 Steckel rolling mill (manufacturing standards of the ArcelorMittal Ostrava, a.s. company).
The pattern of the strip and sheet metal with oval stumps (according to the DIN 59220:2000 norm, the shape is referred to as the “pattern T” ):
≈ 1,0 to 2,0 mm
t
≈60
≈10
≈30
≈60
Coiled hot-rolled wide strips with oval stumps Dimensions produced
TypeStrip width 3)
Thickness 1) Coil dimensions
(t) Inside diameter Outside diameter Coil weight 2)
mm mm mm
Coil strips with oval stumps
980 ≤ 1 100 3.0 ≤ 10.0 cca 762 min. 1 350 max. 2 100according to width
and length
> 1 100 ≤ 1 300 4.0 ≤ 10.0 cca 762 min. 1 350 max. 2 100according to width
and length
> 1 300 ≤ 1 550 5.0 ≤ 10.0 cca 762 min. 1 350 max. 2 100according to width
and length
1 If agreed with the production plant, strips with oval stumps in thickness of 11.0 and 12.0 mm can be supplied.2 The weight of coils of hot-rolled strips with oval stumps is limited by maximum outside diameter (2 100 mm). The maximum achievable coil weight, depending on the required strip thickness and width, is to be
discussed with the production plant.3 If agreed with the production plant, limited quantities of strips with oval stumps in thickness from 740 to < 980 mm can also be supplied.
Tolerances of dimensionsLimit dimension and shape tolerances of coiled hot-rolled strips with oval stumps in coils abide by manufacturing standards of ArcelorMittal Ostrava, a.s. By agreement, strips with oval stumps with tolerances different from those stated in manufacturing standards can also be supplied. Possibilities of supplies have to be discussed with the production plant.
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Delivery of coiled hot-rolled wide strips with oval stumpsIn terms of surface, coil marking, coil binding and storing during transport, the method of delivery of coiled hot-rolled wide strips with oval stumps is not different from the method of delivery of hot-rolled wide strips with smooth surface. The strip is wound with oval nibs inside the coil. Coiled hot-rolled wide strips with oval stumps are standardly supplied with natural edges. If agreed with the production plant, coiled hot-rolled wide strips with oval stumps in thickness between 3.0 and 8.0 mm can also be supplied with trimmed edges.
Hot-rolled sheet metal with oval stumps
Dimensions produced
VersionWidth Length
Thickness of hot-rolled strips and sheet metal with oval stumps
3 4 5 6 7 8 9 10 (11) (12)
mm m mm
Standard sizes
1 000 2.0
1 250 2.5
1 500 3.0
If agreed with the production plant, hot-rolled sheet metal with oval stumps in non-standard sizes between 1000 and 1550 mm of width and 1.0 and 12.0 mm of length can also be supplied. Possibilities of supplies of such dimensions are limited by economic and capacitive possibilities of the production plant.
Tolerances of dimensions
For limit dimension and shape tolerances of sheet metal with oval stumps in the width extent between 3.0 and 10.0 mm the ČSN 42 5392:1990 standard is applied, while for the width extent between 4.0 and 10.0, the DIN 59220:2000 standard is applied. If agreed with the production plant, sheet metal with oval stumps in 11.0 and 12.0 mm thickness and with arranged tolerances can also be supplied.
Delivery of sheet metal with oval stumps
In terms of surface, pack marking, pack binding and storing during transport, the method of delivery of hot-rolled sheet metal with oval stumps is not different from the method of delivery of hot-rolled sheet metal with smooth surface. Wooden pads are used under sheet metal with oval stumps placed with relief downwards on the selected means of transport.
Basic offer of steel grades for sheet metal and strips with oval stumps
EN 10025 ČSNSteel grade according to
DIN 17100:1980 DIN 17100:1966
11 343 RSt 34-1, RSt 34-2
S235JR 11 375 St 37-2, RSt 37-2 RSt 37-1, RSt 37-2
S235J0 11 378 St 37-3 St 37-3
S235J2 11 378 St 37-3 St 37-3
Hot-rolled strips and sheet metal with increased resistance to atmospheric corrosion
Flat products with increased resistance to atmospheric corrosion are supplied in the form of hot-rolled wide strips with natural edges, slit hot-rolled wide strips and hot-rolled sheet metal. Strips and sheet metal with increased resistance to atmospheric corrosion are manufactured in conformity with the following dimensional standard:
ČSN EN 10051:1996 + A1:2000 – “Continuously hot-rolled uncoated plates, sheets and strips of non-alloy and alloy steels – Tolerances for dimensions and shape”.
Coiled hot-rolled wide strips with increased resistance to atmospheric corrosion
Dimensions produced
TypeStrip width 1 Thickness 2
Coil dimensions
Inside diameter Outside diameter Specific coil weight
mm mm
Smooth with natural edges
980980
≤≤
1 3001 500
≥ 3.0 ≥ 4.0
≤ ≤
12.0 12.0
cca 762min. 1 350max. 2 100
According to required width of 18 – 21 kg/mm
strip width (max. 33 tons)
1 If agreed with the production plant, limited supplies of strips with increased resistance to atmospheric corrosion in width from 740 mm to < 980 mm are possible. 2 Strips from steel with increased resistance to atmospheric corrosion in S355J0W, S355J0WP and S355J2WP grades can be supplied in thickness from 3.0 to 4.0 mm only up to the width of 1300 mm and in thickness between 4.0 mm and 12.0 mm up to the width of 1500 mm.
Tolerances of dimensions
Limit thickness deviations of wide strips with increased resistance to atmospheric corrosion are to full extent those applicable to wide strips made of structural carbon steel grades. For width limit deviations of wide strips and slit strips, the ČSN EN 10051:1996 + A1:2000 standard is applied.
Delivery of coiled hot-rolled wide strips
In terms of surface, coil marking, coil binding and storing during transport, the method of delivery of hot-rolled strips with increased resistance to atmospheric corrosion is not different from the method of delivery of hot-rolled wide strips with smooth surface. If agreed with the production plant, coiled strips of width between 3.0 and 8.0 mm with trimmed edges can also be supplied.
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Hot-rolled sheet metal with increased resistance to atmospheric corrosion
Dimensions produced
VersionWidth Length
Sheet thickness
1.5 > 2.0 > 3.0 > 4.0 > 5.0 > 6.0 > 7.0 > 8.0 > 10.0
to
≤ 2.0 ≤ 3.0 ≤ 4.0 ≤ 5.0 ≤ 6.0 ≤ 7.0 ≤ 8.0 ≤ 10.0 ≤ 12.0
mm m mm
Standard sizes
1 000 2.0
1 250 2.5
1 500 3.0
Non-standard sizes
≥ 600 < 980 1.0 – 12.0 3.0 ≤ 8.0 (12.0)
980 ≤ 1 550 1.0 – 12.0 3.0 ≤ 12.01 If agreed with the production plant, limited supplies of sheet metal with increased resistance to atmospheric corrosion in width from 740 mm to < 980 mm are possible. 2 Strips from steel with increased resistance to atmospheric corrosion in S355J0W, S355J0WP and S355J2WP grades can be supplied in thickness from 3.0 to 4.0 mm only up to the width of 1300 mm and in thickness between 4.0 mm and 12.0 mm up to the width of 1500 mm.
Tolerances of dimensions
For dimension limit deviations and shape tolerances of sheet metal with increased resistance to atmospheric corrosion of thickness between 3.0 and 12.0 mm, values specified in the ČSN EN 10051:1996 + A1:2000 standard are applied. If agreed with the production plant, hot-rolled sheet metal with more precise thickness tolerances can also be supplied.
Delivery of sheet metal
In terms of surface, pack marking, pack binding and storing during transport, the method of delivery of hot-rolled sheet metal with increased resistance to atmospheric corrosion is no different from the method of delivery of hot-rolled sheet metal with smooth surface made of structural carbon steel grades. Wooden pads are used under packs of sheet metal on selected means of transport.
Basic offer of steel grades for sheet metal and strips with increased resistance to atmospheric corrosion
ČSN EN 10025-5 Steel grade according to ČSN
S235J0W 15 117
S235J2W 15 117
S355J0W 15 217
S355J0WP 15 217
S355J2WP 15 217
Notes:
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Notes:
Order data specifications
When sending an enquiry or an order, it is necessary for business partners to provide the following technical and commercial data:
Example of the order data:
Hot-rolled strip
Required product – hot-rolled stripDimensions (thickness x width) – 2.5 x 1060 mmSteel grade – EN 10025-2 – S355J0 steelRequired tolerances – acc. to ČSN EN 10051+A1 – acc. to required specificationsCoil inside diameter – approx. 600 mm Coil size – (max. coil weight xx tons, max. outside diameter xxx mm, max. spec. weight 18kg/mm)Ordered quantity – 150 tonsTerm of delivery – month, yearCertificates – 3. x. acc. to EN 10204 Further treatment – cold rolling, stamping, metal coating
Hot-rolled sheet metal
Required product – hot-rolled sheet metalDimensions (thickness x width x length) – 2.5 x 1000 x 2000 mmEdge treatment – natural edges / trimmed edgesSteel grade – EN 10025-2 – S275JR steelRequired tolerances – acc. to ČSN EN 10051+A1 – acc. to required specificationsSheet metal pack limit – max. pack height 500 mm Pack weight limit – max. weight xx tonsOrdered quantity – 50 tonsTerm of delivery – month, yearCertificates – 3. x. acc. to EN 10204 Further treatment – stamping, metal coating
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ArcelorMittal Ostrava a.s.Vratimovská 689707 02 Ostrava-KunčiceCzech Republic
T +420 595 685 115, +420 595 682 832 F +420 595 686 229 E [email protected]
www.arcelormittal.com/ostrava
© ArcelorMittal Ostrava a.s.MarketingSeptember 2008
ArcelorMittal Ostrava a.s.
Vratimovská 689707 02 Ostrava-KunčiceCzech Republic
T +420 595 681 111T +420 597 331 111
www.arcelormittal.com/ostrava
