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HIGH-STRENGTH LOW ALLOY STEEL

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In category Cold rolled steel

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CHARACTERISTICS

Cold rolled sheets made of structural fine-grained micro-alloyed steel are used for drawn parts. The sheets are characterized with improved cold formability.

KEY FEATURES

HC260LA, HC300LA, HC340LA, HC380LA, HC420LA, HC460LA, HC500LA

Grades according to EN 10268
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 		Heat analysis in %
CMAX MnMAX SiMAX PMAX SMAX AlMIN NbMAX1) TiMAX1)
HC260LA 0,10 1,00 0,50 0,030 0,025 0,015 0,090 0,15
HC300LA 0,12 1,40 0,50 0,030 0,025 0,015 0,090 0,15
HC340LA 0,12 1,50 0,50 0,030 0,025 0,015 0,090 0,15
HC380LA 0,12 1,60 0,50 0,030 0,025 0,015 0,090 0,15
HC420LA 0,14 1,60 0,50 0,030 0,025 0,015 0,090 0,15
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 		Rp0,2 [MPa] Rm MIN [MPa A 80MIN (%)
HC260LA 260 - 330 350 - 430 26
HC300LA 300 - 380 380 - 480 23
HC340LA 340 - 420 410 - 510 21
HC380LA 380 - 480 440 - 580 19
HC420LA 420 - 520 470 - 600 17
HC460LA 460 - 580 510 - 660 13
HC500LA 500 - 620 550 - 710 12

DIMENSIONS OF SHEETS AND COILS

for HC260LA, HC300LA and corresponding grades

Nominal thickness [mm] Width [mm]
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

for HC340LA and corresponding grades

Nominal thickness [mm] Width [mm]
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

for HC380LA, HC420LA and corresponding grades

Nominal thickness [mm] Width [mm]
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

for HC460LA

Nominal thickness [mm] Width [mm]
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

for HC500LA

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

DIMENSIONS OF SHEETS 

Thickness [mm] Length [mm]
0,45 - 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
0,45 - 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, 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, 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, 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

NOTE: reduced tolerances are subject to prior agreement 

SHEET FLATNESS TOLERANCES IN ACCORDANCE WITH EN 10131, 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 

FOR STEELS WITH A PRESCRIBED MINIMUM YIELD STRENGTH Re ≥ 340 MPA FLATNESS TOLERANCES ARE TO BE AGREED UPON REQUEST AND ORDERING IN ACCORDANCE WITH EN 10131.

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