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STEEL FOR ENAMELING

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CHARACTERISTICS

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.

KEY FEATURES

   

Products supplies as coils, strips and sheets.

KOSMALT E 240 T, KOSMALT E 300 T

Grades according to U. S. Steel Košice

APPLICATIONS

Suitable for various constructions.

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 [mm] 1)
  750 900 1000 1100 1250 1400 1500
1,80 - 1,99     3)          
2,00 - 2,19   Length of sheets:  2000-4000mm4) 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
2) Subject to prior agreement

Other dimensions are 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

OTHER FEATURES

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

  • thermomechanical rolling

WELDABILITY

  • steels are suitable for welding with standard techniques

EDGES

  • mill edge - mill finished coils (sheets and pickled coils - subject to inquiry)
  • trimmed - sheets, pickled coils (mill finished coils - subject to inquiry)

Logistics information

We offer flexible product delivery with multiple options for packaging and methods of transportation.

More info     

WE PRODUCE FOR SUSTAINABILITY

All processes in society are subject to interest in sustainability in the field of environmental, social and company management. So our steels bear a sign of sustainability.

More about ESG strategy    

S T E E L   F O R   E N A M E L I N G

CONTACT

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