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MICRO-ALLOYED STEEL

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CHARACTERISTICS

Micro-alloyed grade steels are characterized by a fine structure and improved cold formability. The sheets are used for dynamically stressed parts of vehicles.

product forms

Coils

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

Strips

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

Sheets

sheets cut from wide strips supplied in sheets

Key features 

HX260LAD, HX300LAD, HX340LAD, HX380LAD, HX420LAD

Grades according to EN 10346

HX220LAD

Grades according to TN USSK 10346-3:2022

CR210LA, CR240LA, CR270LA, CR300LA, CR340LA, CR380LA, CR420LA

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 or -GI coating designation according to VDA 239-100:2016) and/or zinc-iron alloy coating (+ZF - coating designation according to EN 10346 or -GA coating designation according to VDA 239-100:2016)

TECHNICAL SPECIFICATION

CHEMICAL COMPOSITION 

Grades according to
EN 10346
TN USSK 10346-3:2022
VDA 239-100:2016
Heat analysis in %
C max. Mn max. Si max. P max. S max. Al Ti max. Nb max. Cu max.
CR210LA-GI, -GA 0,10 1,00 0,50 0,080 0,030 min. 0,015 0,15 0,10 0,20
HX220LAD+Z, +ZF 0,07 0,40 0,04 0,020 0,015 0,020 - 0,060 - 0,025 0,20
CR240LA-GI, -GA 0,10 1,00 0,50 0,030 0,025 min. 0,015 0,15 0,09 0,20
HX260LAD+Z, +ZF 0,11 1,00 0,50 0,030 0,025 min. 0,015 0,15 0,09 -
CR270LA-GI, -GA 0,12 1,00 0,50 0,030 0,025 min. 0,015 0,15 0,09 0,20
HX300LAD+Z, +ZF 0,12 1,40 0,50 0,030 0,025 min. 0,015 0,15 0,09 -
CR300LA-GI, -GA 0,12 1,40 0,50 0,030 0,025 min. 0,015 0,15 0,09 0,20
HX340LAD+Z, +ZF 0,12 1,40 0,50 0,030 0,025 min. 0,015 0,15 0,10 -
CR340LA-GI, -GA 0,12 1,50 0,50 0,030 0,025 min. 0,015 0,15 0,09 0,20
HX380LAD+Z, +ZF 0,12 1,50 0,50 0,030 0,025 min. 0,015 0,15 0,10 -
CR380LA-GI, -GA 0,12 1,60 0,50 0,030 0,025 min. 0,015 0,15 0,09 0,20
HX420LAD+Z, +ZF 0,12 1,60 0,50 0,030 0,025 min. 0,015 0,15 0,10 -
CR420LA-GI, -GA 0,12 1,65 0,50 0,030 0,025 min. 0,015 0,15 0,09 0,20

MECHANICAL PROPERTIES 

Grades according to
EN 10346
TN USSK 10346-3:2022
VDA 239-100:2016
Rp0,2 [MPa] R[MPa] A [%] min.
Lo = 80 mm
r90 / r0
min.
rm
min.
n90 / n0
min.
CR210LA-GI, -GA 2) 210 - 300 310 - 410 29 1,0 1,1 0,15
HX220LAD+Z, +ZF min. 220 min. 340 28; (26) 1) - - -
CR240LA-GI, -GA 2) 240 - 320 320 - 420 27 - - 0,15
HX260LAD+Z, +ZF 260 - 330 350 - 430 26; (24) 1) - - -
CR270LA-GI, -GA 2) 270 - 350 350 - 460 25 - - 0,14
HX300LAD+Z, +ZF 300 - 380 380 - 480 23; (21) 1) - - -
CR300LA-GI, -GA 2) 300 - 380 380 - 490 23 - - 0,14
HX340LAD+Z, +ZF 340 - 420 410 - 510 21; (19) 1) - - -
CR340LA-GI, -GA 2) 340 - 430 410 - 530 21 - - 0,12
HX380LAD+Z, +ZF 380 - 480 440 - 560 19; (17) 1) - - -
CR380LA-GI, -GA 2) 380 - 470 450 - 570 19 - - 0,12
HX420LAD+Z, +ZF 420 - 520 470 - 590 17; (15) 1) - - -
CR420LA-GI, -GA 2) 420 - 520 480 - 600 17 - - 0,11

1) valid for ZF surface
2) reduction of the prescribed values for GA coated products graded by thickness:

      t < 0,60 mm - 4 - 0,4 - 0,2
      0,60 mm ≤ t ≤ 1,60 mm - 2 - 0,2 - 0,15
      t > 0,60 mm - 2 - 0,4  - 0,2


grades according to EN 10346 and TN USSK 10346-3:2022 tested in the transverse direction
grades according to VDA-239-100:2016 tested in the longitudinal direction

transversal sampling

DIMENSIONS OF SHEETS AND COILS

HX260LAD...; CR270LA...; HX300LAD...; CR300LA...

Nominal thickness [mm] 800 990 1 190 1 300 1 500
0,40 - 0,59          
0,60 - 0,79        
0,80 - 1,29      
1,30 - 2,00    

DIMENSIONS OF SHEETS AND COILS

HX340LAD...; CR340LA...; HX380LAD...; CR380LA...

Nominal thickness [mm] 800 900 1 100 1 180 1 240 1 300
0,50 - 0,59            
0,60 - 1,09          
1,10 - 1,49        
1,50 - 1,89      
1,90 - 2,00    

DIMENSIONS OF SHEETS AND COILS

HX420LAD...; CR420LA...

Nominal thickness [mm] 800 1 160 1 300 1 360 1 400
0,75 - 1,19          
1,20 - 1,79        
1,80 - 1,89      
1,90 - 2,00    
Nominal thickness Sheet length Coil diameter Slit coil width Nominal coil weight
[kg.mm -1 of width]
inner outer
0,40 - 2,00 1 000 - 3 100 approx. 500 / 600 max. 1 400 40 - 600
(depending on sheet thickness)
2 - 9,9

NOTE: - 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. Tighter tolerances by agreement.

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

Logistics information

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

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M I C R O - A L L O Y E D   S T E E L

CONTACT

CONTACT US PERSONALLY

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Director Sales Czech Republic and Slovakia

    +421 556 734 598

    +421 903 601 790

    mbelicaksk.uss.com

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Director Sales Poland

  +421 556 734 654

  +421 903 627 471

  mmaliksk.uss.com

Eva Širilová

Director Sales West Europe

  +421 556 734 016

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  esirillovask.uss.com

Ján Rohár

Director Sales South & East Europe and Export

  +421 556 734 596

  +421 903 616 433

  jroharsk.uss.com

Dušan Dzurovčin

Director Sales Austria

  +421 556 734 538

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  ddzurovcinsk.uss.com

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