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STEEL FOR AUTOMOTIVE INDUSTRY

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In category Cold rolled steel

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CHARACTERISTICS

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.

product forms

Coils

wide strips with a rolled width of 600mm and more, supplied in coils

Strips

cut from wide strips, width less than 600mm, supplied in coils

Sheets

sheets cut from wide strips supplied in sheets

APPLICATION

Due to their good impact and fatigue resistance, they are used for body mouldings and for car structural components.

HC220P, HC260P according to EN 10268:2006

and in the corresponding grades according to international (ISO) or national technical standards (DIN, JIS, ASTM, ....)

TECHNICAL SPECIFICATION

CHEMICAL COMPOSITION

Grades according to
EN 10268:2006
Heat analysis in %
CMAX MnMAX SiMAX PMAX SMAX AlMIN
HC220P 0,07 0,70 0,50 0,08 0,025 0,015
HC260P 0,08 0,70 0,50 0,10 0,025 0,015

MECHANICAL PROPERTIES

Grades according to
EN 10268:2006
Rp0,2
[MPa]
Rm MIN
[MPa]
A 80MIN (%)
Lo = 80 mm
r90
min.
n90
min.
Uhol ohybu
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

DIMENSIONS OF SHEETS AND COILS

Nominal thickness [mm] Width [mm]
  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

Thickness [mm] Length [mm]
0,56 - 1,00 1 000 - 3 000
1,01 - 2,00 1 000 - 3 000

  NOTE: above 3000mm we produce in cooperation

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 10131:2006 [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 10131:2006 [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

SHEET FLATNESS TOLERANCES IN ACCORDANCE WITH EN 10131:2006 [mm]

Re < 260 MPa

Nominal width Normal tolerances at thickness Reduced tolerances1) 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) reduced tolerances are subject to prior agreement

SHEET FLATNESS TOLERANCES IN ACCORDANCE WITH EN 10131:2006 [mm]

260 <­­ Re < 340 MPa

Nominal width Normal tolerances at thickness Reduced tolerances1) 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) ​​​​​​​reduced tolerances are subject to prior agreement

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