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HIGH STRENGTH IF STEELS

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In category Hot Dip Galvanized

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CHARACTERISTICS

The high-strength interstitial-free steels are particularly suitable for complex structural parts requiring combined stretch formability and deep drawing, such as longitudinal beams, cross members, suspension and chassis components, panels, tunnel sections, reinforcements etc.

U. S. Steel Košice has implemented and maintains a quality control system in accordance with the standard EN ISO 9001 and IATF 16949 for the automotive industry, issued by TÜV SÜD.

Grades

Galvanized products are classified into quality grades according to their chemical composition and mechanical properties.

TECHNICAL SPECIFICATION

CHEMICAL COMPOSITION

Grades according to
EN 10346/09
CMAX MnMAX PMAX SMAX SiMAX Al TiMAX NbMAX
HX180YD + Z, + ZF 0,01 0,70 0,06 0,025 0,20 max. 0,1 0,12 0,09
HX220YD + Z, + ZF 0,01 0,90 0,08 0,025 0,20 max. 0,1 0,12 0,09
HX260YD + Z, + ZF 0,01 1,30 0,10 0,025 0,25 max. 0,1 0,12 0,09
HX220PD + Z, + ZF 1) 0,06 0,70 0,08 0,025 0,50 min. 0,02 - -
HX260PD + Z, + ZF 1) 0,11 0,70 0,10 0,025 0,50 min. 0,02 - -
HX300PD + Z, + ZF 1) 0,11 0,70 0,12 0,025 0,50 min. 0,02 - -

1) according to EN 10292/2000 + A2/04

MECHANICAL PROPERTIES

Grades according to
EN 10346/09
Rp0,2
[MPa]
Rm
[MPa]
A MIN (%)
Lo = 80 mm
r90
min.
n90
min.
HX180YD + Z, ZF 180 - 240 330 -390 34 1,7 0,18
HX220YD + Z, ZF 220 - 280 340 - 420 32 1,5 0,17
HX260YD + Z, ZF 260 - 320 380 - 440 30 1,4 0,16
HX220PD + Z, ZF 220 - 280 340 - 400 32 1,3 0,15
HX260PD + Z, ZF 260 - 320 380 - 440 28 - -
HX300PD + Z, ZF 300 - 360 400 - 480 26 - -

DIMENSIONS OF SHEETS AND COILS [ MM ]

HX180YD, HX220YD, HX220PD

Nominal thickness   800 1100 1300 1380 1500
0,50 - 0,59            
0,60 - 0,89          
0,90 - 1,49        
1,50 - 2,00      
Nominal thickness Sheet length Coil diameter Slit coil width Nominal coil weight
[kg.mm -1 of width]
inner outer
0,45 - 2,00 1 000 - 3 100 approx. 500 max. 1 400 40 - 600
(depending on sheet thickness)
3 - 9,9
approx. 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.

THICKNESS TOLERANCES - EN 10143/06 [ 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 ± 0,04 ± 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

THICKNESS TOLERANCES EN 10143/06 [ MM ]

RE < 260 MPA

Nominal width Normal tolerances at thickness Reduced tolerances 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 [ MM ]

HX260YD, HX260PD

Nominal thickness   800 1150 1250 1300 1350 1380 1500
0,50 - 0,59                
0,60- 0,79              
0,80 - 0,89            
0,90 - 1,09          
1,10 - 1,69        
1,70 - 2,00      
Nominal thickness Sheet length Coil diameter Slit coil width Nominal coil weight
[kg.mm -1 of width]
inner outer
0,50 - 2,00 1 000 - 3 100 cca 500 max. 1 400 40 - 600
(v závislosti na hrúbke plechu)
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

DIMENSIONS OF SHEETS AND COILS [ MM ]

HX300YD

Nominal thickness   800 1000 1100 1300 1350 1380 1500
0,50 - 0,59                
0,60- 0,79              
0,80 - 0,99            
1,00 - 1,09          
1,10 - 1,69        
1,70 - 2,00      
Nominal thickness Sheet length Coil diameter Slit coil width Nominal coil weight
[kg.mm -1 of width]
inner outer
0,50 - 2,00 1 000 - 3 100 cca 500 max. 1 400 40 - 600
(v závislosti na hrúbke plechu)
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

THICKNESS TOLERANCES - EN 10143/06 [ MM ] 

260 ≤ RE < 360 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 ± 0,040 ± 0,045
> 0,60 ≤ 0,80 ± 0,06 ± 0,07 ± 0,045 ± 0,050
> 0,80 ≤ 1,00 ± 0,07 ± 0,08 ± 0,050 ± 0,060
> 1,00 ≤ 1,20 ± 0,08 ± 0,09 ± 0,060 ± 0,070
> 1,20 ≤ 1,60 ± 0,11 ± 0,13 ± 0,070 ± 0,080
> 1,60 ≤ 2,00 ± 0,14 ± 0,15 ± 0,080 ± 0,090

NOTE: reduced tolerances are the subject to prior agreement

ODCHÝLKA ROVINNOSTI TABÚĽ PODĽA EN 10143/06 [ MM ]

260 ≤ RE < 360 MPA

Nominal width Normal tolerances at thickness Reduced tolerances at thickness
< 0,70  ≥ 0,70 < 2,00 < 0,70  ≥ 0,70 < 1,60  ≥ 1,60 ≤ 2,00
 ≥ 600 < 1 200 13 10 8 6 5
 ≥ 1 200 < 1 500 15 13 9 8 6
 ≥ 1 500 20 19 12 10 9

NOTE: flatness tolerances valid only for plates

PARAMETERS OF COATING

Zinc coating
(Z)
Min. weight of surface coating from
both sides [g.m-2]
same 100; 140; 150; 180; 200; 225; 275;(350)
differential 140/100; 150/85;
Zinc-iron coating
(ZF)
Min. weight of surface coating from
both sides [g.m-2]
same 90; 100; 110; 120

Other dimensions are subject to prior agreement
Informative thickness of zinc layer: 7g.m-2 ≈ 1μm

OTHER FEATURES

COATING PROPERTIES

Zinc coated products (Z)

  • normal zinc spangle (N)
  • minimized spangle (M)

Zinc-iron alloy coated products (ZF)

SURFACE QUALITY

  • coated surface A according to EN 10 346/09
  • improved surface B according to EN 10 346/09

SURFACE TREATMENT

  • chemically passivated C (Cr 6+ free; f- - free, RoHS compliant
  • oiled O (0,6-2,5 g.m-2 )
  • chemically passivated and oiled CO (only coils)
  • TOC (Thin Organic Coating) S
  • without surface treatment

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

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