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STEELS FOR AUTOMOTIVE INDUSTRY
           

 

 

Applications

Steels for the automotive industry are suitable for cold forming. They exhibit high mechanical resistance due to solid solution hardening with phosphorus. Because of their good impact and fatigue resistance they are used for pressing parts of automotive bodies and for automotive structural components.

 

Grades

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

 

 

TECHNICAL SPECIFICATION

GENERAL STRUCTURAL GRADES

European standard
EN 10268/06
Germany
SEW 093/87
HC220P ZStE 220 P
HC260P ZStE 260 P
HC300P ZStE 300 P

 

CHEMICAL COMPOSITION

Grades according to
EN 10268/06
U. S. Steel Košice
Heat analysis in %
CMAX MnMAX SiMAX PMAX SMAX AlMIN
HC220P 0,07 0,70 0,50 0,08 0,025 0,015
ZStE 220 P 0,06 0,70 0,50 0,08 0,030 0,020
HC260P 0,08 0,70 0,50 0,10 0,025 0,015
ZStE 260 P 1) 0,08 0,70 0,50 0,10 0,030 0,020
HC300P 0,10 0,70 0,50 0,12 0,025 0,015
ZStE 300 P 1) 0,10 0,70 0,50 0,12 0,030 0,020

1) C + P < 0,16

MECHANICAL PROPERTIES

Grades according to
EN 10268/06
U. S. Steel Košice
Rp0,2
[MPa]
Rm MIN
[MPa]
A 80MIN (%)
Lo = 80 mm
r90
min.
n90
min.
Angle of bend
180°
HC220P 220 - 270 320 - 400 32 1,3 0,16  
ZStE 220 P 220 - 280 340 - 420 30     0.a
HC260P 260 - 320 360 - 440 29      
ZStE 260 P 1) 260 - 320 380 - 460 28     0.a
HC300P 300 - 360 400 - 480 26      
ZStE 300 P 1) 300 - 360 420 - 500 26     0.a

Samples are taken transversally to the rolling direction
a = sheet thickness in mm

DIMENSIONS OF SHEETS AND COILS [ mm ]

Nominal thickness Width
  750 975 1 100 1 200 1 250 1 300 1 400 1 500
0,40 - 0,79                  
0,80 - 0,89                  
0,90 - 1,49                  
1,50 - 1,79                  
1,80 - 1,89                  
1,90 - 2,00                  

DIMENSIONS OF SHEETS [mm]

Thickness Length
0,56 - 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
0,56 - 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

NOTE: thickness is graded by 0,01 mm.

THICKNESS TOLERANCES IN ACCORDANCE WITH EN 10131/06 [ mm ]                                                              Re < 260 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 ± 0,03 ± 0,04 ± 0,025 ± 0,030
> 0,60 ≤ 0,80 ± 0,04 ± 0,05 ± 0,030 ± 0,035
> 0,80 ≤ 1,00 ± 0,05 ± 0,06 ± 0,035 ± 0,040
> 1,00 ≤ 1,20 ± 0,06 ± 0,07 ± 0,040 ± 0,050
> 1,20 ≤ 1,60 ± 0,08 ± 0,09 ± 0,050 ± 0,060
> 1,60 ≤ 2,00 ± 0,10 ± 0,11 ± 0,060 ± 0,070

NOTE: reduced tolerances are subject to prior agreement

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

SHEET FLATNESS TOLERANCES1) IN ACCORDANCE WITH EN 10131/06 [ mm ]                                                Re < 260 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 10 8 7 5 4 3
≥ 1 200 < 1 500 12 10 8 6 5 4
≥ 1 500 17 15 13 8 7 6

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

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

GENERAL DELIVERY TERMS AND CONDITIONS

PRICE EXTRAS LIST

 

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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COMMERCIAL TEAM

MIROSLAV MAĎAR

Director Sales
Slovakia

 

+421 556 739 307
+421 903 656 284

mmadarsk.uss.com

DOVDON TUGSBAYAR

Managing Director
U. S. Steel Bohemia - a.s. 

(Czech)

+420 226 201 550
+420 777 0022 40

dtugsbayarsk.uss.com

MILAN MALÍK

Director Sales
Poland

 

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+421 903 627 471

mmaliksk.uss.com

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Director Sales
Austria, Hungary, Ex-Yugo, Italy

 

+421 556 734 538
+421 917 731 813

ddzurovcinsk.uss.com

VIKTOR UDODIK

Director Sales East & South Europe, Scandinavia & Export

+421 556 734 279
+421 903 656 981

 vudodiksk.uss.com

 

 

ROBERT KRAMER

Sales Office Europe
U. S. Steel
Germany GmbH.

+49 211 447292 12
 

rkramersk.uss.com

 

FREDERIC SZTOR

Sales Office Europe
U. S. Steel
France S.A.

+33 3 8768 1145
 

fsztorsk.uss.com

ALBERTO MAROSTICA

Regional Sales Director
U. S. Steel Italy S.r.l.

+39 02 365 77430
+39 347 149 5620

amarosticask.uss.com

POSTAL ADDRESS:
 

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

Phone.: +421 55 673 1111
Fax: +421 55 673 1110

 

BILLING INFORMATION:
 

ID No.: 36 199 222
VAT ID: SK7020000119

Commercial Register: District Court Kosice I, Sec.: Sro, File No.: 11711/V

VISITING US:

 

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You can also visit the website of our parent company United States Steel Corporation.