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BAKE-HARDENING STEEL

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In category Hot Dip Galvanized steel

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CHARACTERISTICS

These steels have a good suitability for cold forming and present a high resistance to plastic straining (which is increased on finished parts during heat treatment) and a good dent resistance.

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

Key features

HX180BD, HX220BD, HX260BD, HX300BD

Grades according to EN 10346:2015

CR180BH, CR210BH, CR240BH, CR270BH

Grades according to VDA 239-100:2016

and in corresponding grades according to international (ISO), national technical standards (JIS, ASTM, ....) or other technical standards used in the automotive industry
Grades are produced with zinc coating (+Z - coating designation according to EN 10346:2015 or -GI coating designation according to VDA 239-100:2016)

TECHNICAL SPECIFICATION

CHEMICAL COMPOSITION

Grades according to
EN 10346:2015 VDA 239-100:2016		 Heat analysis in %
CMAX MnMAX SiMAX PMAX SMAX AlMIN TiMAX NbMAX CuMAX
HX180BD + Z 0,06 0,70 0,50 0,060 0,025 0,015 0,12 0,09 -
CR180BH-GI 0,06 0,70 0,50 0,060 0,025 0,015 - - 0,20
HX220BD + Z 0,08 0,70 0,50 0,085 0,025 0,015 0,12 0,09 -
CR210BH-GI 0,08 0,70 0,50 0,085 0,025 0,015 - - 0,20
CR240BH-GI 0,10 1,00 0,50 0,100 0,030 0,015 - - 0,20
HX260BD + Z 0,10 1,00 0,50 0,100 0,030 0,010 0,12 0,09 -
CR270BH-GI 0,11 1,00 0,50 0,110 0,030 0,015 - - 0,20
HX300BD + Z 0,11 0,80 0,50 0,120 0,025 0,010 0,12 0,09 -

MECHANICAL PROPERTIES

Grades according to
EN 10346:2015
VDA 239-100:2016		 Rp0,2
[MPa]		 Rm
[MPa]		 A MIN (%)
Lo = 80 mm		 Index BH efektu BH2 [MPa] r90 / r0
min.		 rm
min.		 n90 / n0
min.
HX180BD + Z 180 - 240 290 - 360 34 min. 30 1,5 - 0,16
CR180BH-GI 180 - 240 290 - 370 34 min. 30 1,1 1,3 0,17
HX220BD + Z 220 - 280 320 - 400 32 min. 30 1,2 - 0,15
CR210BH-GI 210 - 270 320 - 400 32 min. 30 1,1 1,2 0,16
CR240BH-GI 240 - 300 340 - 440 29 min. 30 1,0 1,1 0,15
HX260BD + Z 260 - 320 360 - 440 28 min. 30 - - -
CR270BH-GI 270 - 330 360 - 460 27 min. 30 - - 0,13
HX300BD + Z 300 - 360 400 - 480 26 min. 30 - - -

grades according to EN 10346/15 tested in the transverse direction
grades according to VDA-239-100/16 tested in the longitudinal direction

DIMENSIONS OF SHEETS AND COILS

HX180BD, CR180BH

Nominal thickness [mm]   800 1000 1100 1240 1300 1380 1500
0,42 - 0,44                
0,45 - 0,49              
0,50 - 0,59            
0,60 - 0,69          
0,70 - 0,79        
1,00 - 2,00      

DIMENSIONS OF SHEETS AND COILS

HX220BD, CR210BH

Nominal thickness [mm]   800 1120 1300 1400 1500
0,40 - 0,55            
0,56 - 0,85          
1,06 - 1,25        
1,26 - 2,00      

THICKNESS TOLERANCES - EN 10143:2006 [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 ± 0,04 ± 0,05 ± 0,030 ± 0,035
> 0,40 ≤ 0,60 ± 0,04 ± 0,05 ± 0,035 ± 0,040
> 0,60 ≤ 0,80 ± 0,05 ± 0,06 ± 0,040 ± 0,045
> 0,80 ≤ 1,00 ± 0,06 ± 0,07 ± 0,045 ± 0,050
> 1,00 ≤ 1,20 ± 0,07 ± 0,08 ± 0,050 ± 0,060
> 1,20 ≤ 1,60 ± 0,10 ± 0,11 ± 0,060 ± 0,070
> 1,60 ≤ 2,00 ± 0,12 ± 0,13 ± 0,070 ± 0,080

NOTE: reduced tolerances are the subject to prior agreement

SHEET FLATNESS TOLERANCES IN ACCORDANCE WITH EN 10143:2006 [MM]

RE < 260 MPA

Nominal width Normal tolerances at thickness Reduced tolerances2) at thickness
< 0,70  ≥­­ 0,70 < 2,00 < 0,70  ≥­­ 0,70 < 1,60  ≥­­ 1,60 < 2,00
 ≥ 600 < 1 200 10 8 5 4 3
 ≥ 1 200 < 1 500 12 10 6 5 4
 ≥ 1 500 17 15 8 7 6

NOTE: flatness tolerances valid only for plates

DIMENSIONS OF SHEETS AND COILS

HX300BD

Nominal thickness [mm]   800 1240 1260 1300 1400 1500
0,50 - 0,69              
0,70 - 0,79            
0,80 - 0,89          
0,90 - 1,19        
1,20 - 2,00      
Nominal thickness [mm] Sheet length [mm] Coil diameter [mm] Slit coil width Nominal coil weight
[kg.mm -1 of width]
inner outer
0,42 - 2,00 1 000 - 3 100 cca 500 max. 1 400 40 - 600
(depending on sheet thickness)		 3 - 9,9
cca 600
2 - 9,4

Thickness is graded by 0,01 mm, width is graded by 5,0 mm, length is graded by 5 mm; nominal thickness includes zinc coat

Dimensional tolerances according to EN 10143:2006. Tighter tolerances by agreement.

If you need specific parameters that are not listed here, please contact us

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