STEEL FOR ENAMELING
Applications
Steel is suitable for both side enameling. Hot rolled steel sheets are characterized with good bendability and are suitable for cold stamping. These steel sheets are suitable for various constructions.
Grades
The hot rolled products are classified into quality grades according to chemical composition and mechanic properties.
TECHNICAL SPECIFICATION
CHEMICAL COMPOSITION
| Grades according to U. S. Steel Košice |
Heat analysis % | |||||||
|---|---|---|---|---|---|---|---|---|
| C | MnMAX | SiMAX | PMAX | SMAX | Al | NMAX | Ti | |
| KOSMALT E 240 T | max. 0,07 | 0,30 | 0,06 | 0,020 | 0,020 | 0,02 - 0,07 | 0,010 | 0,03 - 0,08 |
| KOSMALT E 300 T | 0,03 - 0,07 | 0,30 | 0,06 | 0,020 | 0,020 | 0,02 - 0,07 | 0,010 | 0,06 - 0,12 |
MECHANICAL PROPERTIES
| Grades according to U. S. Steel Košice |
Re [MPa] | Rm [MPa] | A MIN (%) | Angle of bend 180° |
Thickness [mm] |
|
|---|---|---|---|---|---|---|
| L0 = 80 mm | L = 5,65√S0 | |||||
| a < 3 | 3 ≤ a | |||||
| KOSMALT E 240 T | min. 240 | max. 400 | 30 | 32 | 0.a | 1,80 - 12,50 |
| KOSMALT E 300 T | 300 - 450 | 350 - 550 | 25 | 28 | 0.a | 2,50 - 8,00 |
DIMENSIONS OF SHEETS AND COILS [mm] Re < 280 MPa
| Nominal thickness 1) | Sheet width 1) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 750 | 900 | 1000 | 1100 | 1250 | 1400 | 1500 | |||
| 1,80 - 1,99 | 3) | ||||||||
| 2,00 - 2,19 | Length of sheets: 2 000 - 4 000 mm 4) | 3) | |||||||
| 2,20 - 2,49 | Inner coil diameter: 850 (+50; -20) mm | 3) | |||||||
| 2,50 - 2,99 | Inner pickled coil diameter: 600, 850 | 3) | |||||||
| 3,00 - 3,49 | Outercoil diameter: 1850 mm | 3) | |||||||
| 3,50 - 3,99 | Coil weight: 5,0 - 15,1 kg.mm-1 of width | ||||||||
| 4,00 - 4,99 | |||||||||
| 5,00 - 5,99 | Lenght of sheets: 2 000 - 6 000 5) | ||||||||
| 6,00 - 12,50 2) | |||||||||
| 780 | 940 | 1040 | 1140 | 1290 | 1440 | 1540 | ||
|---|---|---|---|---|---|---|---|---|
| Coil width 1) | ||||||||
1) Basic thickness dimensions graded by 0,05 mm, eidth by 5,00 mm
2) Max. thickness 12,70 mm on agreement, other dimensions are subject to
prior agreement
3) Without guarantee of flatness
4) On agreement sheets are delivered up to lenght of 6 000 mm; lenghts above
4 000 mm without flatness guarantee. Lenghth is graded by 50 mm
5) On agreement sheets are delivered up to length of 12 000 mm; lengths above
6 000 mm without flatness guarantee. Length is graded by 50 mm
DIMENSIONS OF SHEETS AND COILS [mm] Re 280 - 360 MPa
| Nominal thickness 1) | Sheet width 1) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 750 | 900 | 1000 | 1100 | 1250 | 1400 | 1500 | |||||
| 2,00 - 2,19 | Length of sheets: 2 000 - 4 000 4) mm | ||||||||||
| 2,20 - 2,49 | Inner coil diameter: 850 (+50; -20) mm | 3) | |||||||||
| 2,50 - 2,99 | Inner pickled coil diameter: 600, 850 | 3) | |||||||||
| 3,00 - 3,49 | Outercoil diameter: 1850 mm | 3) | |||||||||
| 3,50 - 3,99 | Coil weight: 5,0 - 15,1 kg.mm-1 of width | 3) | |||||||||
| 4,00 - 4,99 | |||||||||||
| 5,00 - 5,99 | Lenght of sheets: 2 000 - 6 000 5) | ||||||||||
| 6,00 - 12,50 2) | |||||||||||
| 780 | 940 | 1040 | 1140 | 1290 | 1440 | 1540 | ||
|---|---|---|---|---|---|---|---|---|
| Coil width 1) | ||||||||
1) Basic thickness dimensions graded by 0,05 mm, eidth by 5,00 mm
2) Max. thickness 12,70 mm on agreement, other dimensions are subject to
prior agreement
3) Without guarantee of flatness
4) On agreement sheets are delivered up to lenght of 6 000 mm; lenghts above
4 000 mm without flatness guarantee. Lenghth is graded by 50 mm
5) On agreement sheets are delivered up to length of 12 000 mm; lengths above
6 000 mm without flatness guarantee. Length is graded by 50 mm
DIMENSION OF SLIT COILS [mm] Re < 360 MPa
| Nominal thickness 1) | Width of slit coil 1) | ||||
|---|---|---|---|---|---|
| 110 - 510 | 511 - 550 | 551 - 580 | |||
| 2,00 2) - 2,09 | |||||
| 2,10 - 2,29 | |||||
| 2,30 - 2,49 | |||||
| 2,50 - 2,99 | Inner coil diameter: 600, 712, 760, 850 mm (+50, -20) | ||||
| 3,00 - 3,59 | Outer coil diameter: 1850 mm | ||||
| 3,60 - 6,00 | Coil weight: 5,0 - 15,1 kg.mm-1 of coil width | ||||
| 6,01 - 8,00 | |||||
1) Basic grading of thickness by 0,05 mm, width by 5 mm Other dimensions are subject to prior agreement
2) Subject to prior agreement
THICKNESS TOLERANCES IN ACCORDANCE WITH EN 10051/10 AND U. S. Steel Košice, s.r.o. Re ≤ 300 MPa
| Nominal thickness [mm] |
Thickness tolerances at nominal widths [mm] | ||||||
|---|---|---|---|---|---|---|---|
|
≤ 1200 |
1200 ≤ 1500 | > 1500 ≤ 1800 1) | |||||
| EN | U. S. Steel Košice | EN | U. S. Steel Košice | EN | U. S. Steel Košice | ||
|
≤ 2,00 |
± 0,17 | ± 0,15 | - | - | - | - | |
| > 2,00 ≤ 2,50 | ± 0,18 | ± 0,15 | ± 0,21 | ± 0,17 | ± 0,23 | ± 0,17 | |
| > 2,50 ≤ 3,00 | ± 0,20 | ± 0,15 | ± 0,22 | ± 0,17 | ± 0,24 | ± 0,17 | |
| > 3,00 ≤ 4,00 | ± 0,22 | ± 0,18 | ± 0,24 | ± 0,21 | ± 0,26 | ± 0,21 | |
| > 4,00 ≤ 5,00 | ± 0,24 | ± 0,18 | ± 0,26 | ± 0,21 | ± 0,28 | ± 0,21 | |
| > 5,00 ≤ 6,00 | ± 0,26 | ± 0,19 | ± 0,28 | ± 0,21 | ± 0,29 | ± 0,21 | |
| > 6,00 ≤ 8,00 | ± 0,29 | ± 0,21 | ± 0,30 | ± 0,24 | ± 0,31 | ± 0,24 | |
| > 8,00 ≤ 10,00 | ± 0,32 | ± 0,21 | ± 0,33 | ± 0,24 | ± 0,34 | ± 0,24 | |
| > 10,00 ≤ 12,50 | ± 0,35 | ± 0,21 | ± 0,36 | ± 0,24 | ± 0,37 | ± 0,24 | |
| > 12,00 ≤ 12,70 | ± 0,37 | ± 0,21 | ± 0,38 | ± 0,24 | ± 0,40 | ± 0,24 | |
THICKNESS TOLERANCES IN ACCORDANCE WITH EN 10051/10 AND U. S. Steel Košice, s.r.o. 300 MPa < Re ≤ 360 MPa
| Nominal thickness [mm] |
Thickness tolerances at nominal widths [mm] | ||||||
|---|---|---|---|---|---|---|---|
|
≤ 1200 |
1200 ≤ 1500 | > 1500 ≤ 1800 1) | |||||
| EN | U. S. Steel Košice | EN | U. S. Steel Košice | EN | U. S. Steel Košice | ||
|
≤ 2,00 |
± 0,20 | ± 0,17 | - | - | - | - | |
| > 2,00 ≤ 2,50 | ± 0,21 | ± 0,18 | ± 0,24 | ± 0,19 | ± 0,26 | ± 0,19 | |
| > 2,50 ≤ 3,00 | ± 0,23 | ± 0,19 | ± 0,25 | ± 0,21 | ± 0,28 | ± 0,21 | |
| > 3,00 ≤ 4,00 | ± 0,25 | ± 0,21 | ± 0,28 | ± 0,23 | ± 0,30 | ± 0,23 | |
| > 4,00 ≤ 5,00 | ± 0,28 | ± 0,22 | ± 0,30 | ± 0,24 | ± 0,32 | ± 0,24 | |
| > 5,00 ≤ 6,00 | ± 0,30 | ± 0,24 | ± 0,32 | ± 0,27 | ± 0,33 | ± 0,27 | |
| > 6,00 ≤ 8,00 | ± 0,33 | ± 0,27 | ± 0,35 | ± 0,29 | ± 0,36 | ± 0,29 | |
| > 8,00 ≤ 10,00 | ± 0,37 | ± 0,29 | ± 0,38 | ± 0,32 | ± 0,39 | ± 0,32 | |
| > 10,00 ≤ 12,50 | ± 0,40 | ± 0,31 | ± 0,41 | ± 0,34 | ± 0,43 | ± 0,34 | |
| > 12,00 ≤ 12,70 | ± 0,43 | ± 0,31 | ± 0,44 | ± 0,34 | ± 0,46 | ± 0,34 | |
1) Maximum width of U. S. Steel Košice´s hot rolled products is 1540 mm.
SHEET FLATNESS TOLERANCES 2) IN ACCORDANCE WITH EN 10051/10 Re ≤ 300 MPa
| Nominal thickness [mm] |
Normal sheet flatness tolerances depending on width [mm] | ||
|---|---|---|---|
| < 1200 | 1200 - 1500 | > 1500 1) | |
| ≤ 2,00 | 18 | 20 | 25 |
| > 2,00 ≤ 12,70 | 15 | 18 | 23 |
1) Maximum width of U. S. Steel Košice´s hot rolled products is 1 540 mm.
2) Coil flatness tolerances are subject to prior agreement.
| For Re > 300 MPa is proportionally higher - please, see EN 10051/10 |
|---|
SURFACE TREATMENT
- mill finished - sheets, coils, slit coils
- pickled - sheets, coils, slit coils (oiled), thickness up to 4,5 mm, thicker sheets are subject to prior agreement
Technical delivery regulations and dimensions: TN USSK 42 0118/11
HEAT TREATMENT
WELDABILITY
- thermomechanical rolling
EDGES
- mill edge - mill finished coils (sheets and pickled coils - subject to inquiry)
- trimmed - sheets, pickled coils (mill finished coils - subject to inquiry)
- steels are suitable for welding with standard techniques
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U. S. Steel Košice, s.r.o.
Vstupný areál U. S. Steel
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Slovak Republic
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