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HIGH STRENGTH LOW ALLOY STEELS
           

 

 

Applications

Cold rolled sheets made of structural fine-grained micro-alloyed steel are used for drawn parts. The sheets are characterized with improved cold formability.
U. S. Steel Košice has implemented and maintains a quality control
system in accordance with the standard EN ISO 9001,as well as in Accordance with IATF 16949 for automotive industry, issued by  TÜV SÜD.

 

Grades

Cold rolled products are classified into quality grades according to
their chemical composition and mechanic properties.

 

 

TECHNICAL SPECIFICATION

HSLA STEELS - BRAND CORRESPONDENCE

European standard Germany
SEW 093/87		 U. S. Steel Košice
EN 10268/06+A1/13
HC260LA ZStE 260 KODUR H 260 LA
HC300LA ZStE 300 KODUR H 300 LA
HC340LA ZStE 340 KODUR H 340 LA
HC380LA ZStE 380 KODUR H 380 LA
HC420LA ZStE 420 KODUR H 420 LA
HC460LA - -
HC500LA - -

CHEMICAL COMPOSITION

Grades according to
EN 10268/06+A1/13
U. S. Steel Košice		 Heat analysis in %
CMAX MnMAX SiMAX PMAX SMAX AlMIN NbMAX VMAX TiMAX
HC260LA 1) 0,10 0,60 0,50 0,025 0,025 0,015 - - 0,15
KODUR H 260 LA 0,10 0,60 0,40 0,025 0,010 0,015 0,080 0,10 0,10
HC300LA 1) 0,12 1,40 0,50 0,030 0,025 0,015 0,090 - 0,15
KODUR H 300 LA 0,10 0,80 0,40 0,025 0,010 0,015 0,080 0,10 0,10
HC340LA 1) 0,12 1,50 0,50 0,030 0,025 0,015 0,090 - 0,15
KODUR H 340 LA 0,10 1,00 0,40 0,025 0,010 0,015 0,080 0,12 0,10
HC380LA 1) 0,12 1,60 0,50 0,030 0,025 0,015 0,090 - 0,15
KODUR H 380 LA 0,10 1,20 0,40 0,025 0,010 0,015 0,080 0,10 0,10
HC420LA 1) 0,14 1,60 0,50 0,030 0,025 0,015 0,090 - 0,15
KODUR H 420 LA 0,10 1,50 0,40 0,025 0,010 0,015 0,090 0,12 0,10
HC460LA 0,14 1,80 0,60 0,030 0,025 0,015 0,090 - 0,15
HC500LA 0,14 1,80 0,60 0,030 0,025 0,015 0,090 - 0,15

1) Ti + Nb + V + B = max. 0,22 %

MECHANICAL PROPERTIES

Grades according to
EN 10268/06+A1/13
U. S. Steel Košice		 Rp0,2 [MPa] Rm MIN [MPa A 80MIN (%)
transversal
sampling		 longitudinal
sampling		 transversal
sampling		 longitudinal
sampling		 transversal
sampling		 longitudinal
sampling
HC260LA 260 - 330 240 - 310 350 - 430 340 - 420 26 27
KODUR H 260 LA - 240 - 310 - 340 - 420 - 27
HC300LA 300 - 380 280 - 360 380 - 480 370 - 470 23 24
KODUR H 300 LA - 280 - 360 - 370 - 470 - 24
HC340LA 340 - 420 320 - 410 410 - 510 400 - 500 21 22
KODUR H 340 LA - 320 - 410 - 400 - 500 - 22
HC380LA 380 - 480 350 - 450 440 - 580 430 - 550 19 20
KODUR H 380 LA - 360 - 460 - 430 - 550 - 20
HC420LA 420 - 520 390 - 500 470 - 600 460 - 580 17 18
KODUR H 420 LA - 400 - 500 - 460 - 580 - 18
HC460LA 460 - 580 420 - 560 510 - 660 480 - 630 13 14
HC500LA 500 - 620 460 - 600 550 - 710 520 - 690 12 13

DIMENSIONS OF SHEETS AND COILS [ mm ]                                              for HC260LA, HC300LA and corresponding grades

Nominal thickness Width
  750 1015 1175 1305 1345 1500
0,450 - 0,549              
0,550 - 0,849            
0,850 - 0,149          
0,850 - 1,449        
1,450 - 2,000      

DIMENSIONS OF SHEETS AND COILS [ mm ]                                                                for HC340LA and corresponding grades

Nominal thickness Width
  750 905 1105 1225 1335 1395
0,550 - 0,649              
0,650 - 1,249            
1,250 - 1,549          
1,550 - 1,849        
1,850 - 2,000      

DIMENSIONS OF SHEETS AND COILS [ mm ]                                              for HC380LA, HC420LA and corresponding grades

Nominal thickness Width
  750 905 1105 1235 1335
0,650 - 0,749            
0,750 - 1,349          
1,350 - 1,649        
1,650 - 2,000      

DIMENSIONS OF SHEETS AND COILS [ mm ]                                                                                                               for HC460LA

Nominal thickness Width  
  750 905 1040 1135 1235 1285
0,650 - 0,749            
0,750 - 0,949          
0,950 - 1,449        
1,450 - 1,849      
1,850 - 2,000    

DIMENSIONS OF SHEETS AND COILS [ mm ]                                                                                                               for HC500LA

Nominal thickness Width
  750 905 920 1085
0,750 - 0,949        
0,950 - 1,549      
1,550 - 2,000    

DIMENSIONS OF SHEETS [mm]

Thickness Length
0,45 - 1,00 1 000 - 3 100
1,01 - 2,00 1 000 - 4 000

 

DIMENSIONS OF COILS AND SLIT COILS [mm]

Thickness Inner diameter Outer diameter Coil Slit coil
Width Weight Width Weight
0,45 - 1,30 approx. 500 or 600 max. 1 800 750 - 1 050 3 - 15 kg.mm-1 of width 21 - 600 max. 15 000 kg
1,31 - 2,00 approx. 600 750 - 1 500 2 - 17 kg.mm-1 of width

THICKNESS TOLERANCES IN ACCORDANCE WITH EN 10131/06 [ mm ]                                                   260 ≤ Re < 340 MPa

Nominal thickness Normal tolerances at width Reduced tolerances at width
≤ 1 200 >1 200 ≤ 1 500 ≤ 1 200 >1 200 ≤ 1 500
> 0,40 ≤ 0,60 ± 0,04 ± 0,05 ± 0,030 ± 0,035
> 0,60 ≤ 0,80 ± 0,05 ± 0,06 ± 0,035 ± 0,040
> 0,80 ≤ 1,00 ± 0,06 ± 0,07 ± 0,040 ± 0,050
> 1,00 ≤ 1,20 ± 0,07 ± 0,08 ± 0,050 ± 0,060
> 1,20 ≤ 1,60 ± 0,09 ± 0,11 ± 0,060 ± 0,070
> 1,60 ≤ 2,00 ± 0,12 ± 0,13 ± 0,070 ± 0,080

NOTE: reduced tolerances are subject to prior agreement

THICKNESS TOLERANCES IN ACCORDANCE WITH EN 10131/06 [ mm ]                                                   340 ≤ Re ≤ 420 MPa

Nominal thickness Normal tolerances at width Reduced tolerances at width
≤ 1 200 >1 200 ≤ 1 500 ≤ 1 200 >1 200 ≤ 1 500
> 0,40 ≤ 0,60 ± 0,05 ± 0,06 ± 0,035 ± 0,040
> 0,60 ≤ 0,80 ± 0,06 ± 0,07 ± 0,040 ± 0,050
> 0,80 ≤ 1,00 ± 0,07 ± 0,08 ± 0,050 ± 0,060
> 1,00 ≤ 1,20 ± 0,09 ± 0,10 ± 0,060 ± 0,070
> 1,20 ≤ 1,60 ± 0,11 ± 0,12 ± 0,070 ± 0,080
> 1,60 ≤ 2,00 ± 0,14 ± 0,15 ± 0,080 ± 0,100

NOTE: reduced tolerances are subject to prior agreement

THICKNESS TOLERANCES IN ACCORDANCE WITH EN 10131/06 [ mm ]                                                             Re > 420 MPa

Nominal thickness Normal tolerances at width Reduced tolerances at width
≤ 1 200 >1 200 ≤ 1 500 ≤ 1 200 >1 200 ≤ 1 500
0,35 ≤ t ≤ 0,40 ± 0,05 ± 0,06 ± 0,035 ± 0,040
0,45 < t ≤ 0,60 ± 0,05 ± 0,07 ± 0,040 ± 0,050
0,60 < t ≤ 0,80 ± 0,06 ± 0,08 ± 0,050 ± 0,060
0,80 < t ≤ 1,00 ± 0,08 ± 0,10 ± 0,060 ± 0,070
1,00 < t ≤ 1,20 ± 0,10 ± 0,11 ± 0,070 ± 0,080
1,20 < t ≤ 1,60 ± 0,13 ± 0,14 ± 0,080 ± 0,100
1,60 < t ≤ 2,00 ± 0,16 ± 0,17 ± 0,100 ± 0,110
2,00 < t ≤ 2,50 ± 0,19 ± 0,20 ± 0,130 ± 0,140
2,50 < t ≤ 3,00 ± 0,22 ± 0,23 ± 0,160 ± 0,170

1) coil flatness tolerances are subject to prior agreement
2) reduced tolerances are subject to prior agreement

SHEET FLATNESS TOLERANCES1) IN ACCORDANCE WITH EN 10131/06 [ mm ]                                      260 ≤ Re < 340 MPa

Nominal width Normal tolerances at thickness Reduced tolerances2) at thickness
< 0,70 ≥ 0,70 < 1,20 ≥ 1,20 < 0,70 ≥ 0,70 < 1,20 ≥ 1,20
≥ 600 < 1 200 13 10 8 8 6 5
≥ 1 200 < 1 500 15 13 11 9 8 6
≥ 1 500 20 19 17 12 10 9

1) coil flatness tolerances are subject to prior agreement
2) reduced tolerances are subject to prior agreement

SHEET FLATNESS TOLERANCES IN ACCORDANCE WITH EN 10131/06 [ mm ]                                                   Re ≥ 340 MPa

Thickness tolerances are subject to prior agreement.

SURFACE FINISH AND ROUGHNESS VALUES

Surface finish Symbol Roughness
Bright b Ra ≤ 0,9 μm
Matt m 0,6 μm < Ra ≤ 1,9 μm
Rough r Ra > 1,6 μm

other surfaces are subject to prior agreement

SURFACE TREATMENT

  • non-oiled - without corrosion guarantee
  • oiled - oil weight 0,5 - 2,5 g.m-2)
    (electrostatically applied oil layer) 

WELDABILITY

  • steels are suitable for welding with standard techniques

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TRANSPORT & STORAGE RECOMMENDATIONS

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GENERAL DELIVERY TERMS AND CONDITIONS

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Logistics information

 

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

 

Shipping

The final products are shipped to customers via truck, railway, ships or transportation directly from our covered storage yard.

                

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DUŠAN DZUROVČIN

Key Account Manager
Austria

+421 556 734 538
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ddzurovcinsk.uss.com

 

POSTAL ADDRESS:
 

U. S. Steel Košice, s.r.o.
Vstupný areál U. S. Steel
044 54 Košice
Slovak Republic

 

BILLING INFORMATION:
 

ID No.: 36 199 222
VAT ID: SK7020000119
Commercial Register: District Court Kosice I, Sec.: Sro, File No.: 11711/V

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