STRUCTURAL STEELS
Applications
Structural grade sheets are used wherever strength parameters are prescribed, for supporting parts of building elements, bend profiles, 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
STRUCTURAL GRADES
| European standard EN 10346/09 |
Japan JIS 3302 |
USA, ASTM | U. S. Steel Košice, s.r.o. TN USSK 10143-4/13 ZINKOMAGTM |
|
|---|---|---|---|---|
| A 446 | A 653 | |||
| S220GD + Z + ZF | Gr. A | SS Gr. 33 | S220GD+ZM | |
| S250GD + Z + ZF | SGC 340 | Gr. B | SS Gr. 37 | S250GD+ZM |
| S280GD + Z + ZF | SGC 400 | Gr. C | SS Gr. 40 | S280GD+ZM |
| S320GD + Z + ZF | SGC 440 | - | SS Gr. 50 class 1, 2 | S320GD+ZM |
| S350GD + Z + ZF | SGC 440 | Gr. D class 1 | SS Gr. 53 class 3 | S350GD+ZM |
CHEMICAL COMPOSITION
| Grades according to EN 10346/09 U. S. Steel Košice |
Heat analysis in % | ||||
|---|---|---|---|---|---|
| CMAX | MnMAX | PMAX | SMAX | SiMAX | |
| S220GD + Z + ZF | 0,20 | 1,70 | 0,100 | 0,045 | 0,60 |
| S250GD + Z + ZF | 0,20 | 1,70 | 0,100 | 0,045 | 0,60 |
| S280GD + Z + ZF | 0,20 | 1,70 | 0,100 | 0,045 | 0,60 |
| S320GD + Z + ZF | 0,20 | 1,70 | 0,100 | 0,040 | 0,60 |
| S350GD + Z + ZF | 0,20 | 1,70 | 0,100 | 0,045 | 0,60 |
| S220GD+ZM | 0,20 | 1,70 | 0,100 | 0,045 | 0,60 |
| S250GD+ZM | 0,20 | 1,70 | 0,100 | 0,045 | 0,60 |
| S280GD+ZM | 0,20 | 1,70 | 0,100 | 0,045 | 0,60 |
| S320GD+ZM | 0,20 | 1,70 | 0,100 | 0,045 | 0,60 |
| S350GD+ZM | 0,20 | 1,70 | 0,100 | 0,045 | 0,60 |
MECHANICAL PROPERTIES
| Grades according to EN 10346/09 U. S. Steel Košice |
ReH MIN [MPa] |
Rm MIN [MPa] |
A MIN (%) Lo = 80 mm |
|---|---|---|---|
| S220GD + Z + ZF | 220 | 300 | 20 |
| S250GD + Z + ZF | 250 | 330 | 19 |
| S280GD + Z + ZF | 280 | 360 | 18 |
| S320GD + Z + ZF | 320 | 390 | 17 |
| S350GD + Z + ZF | 350 | 420 | 16 |
| S220GD+ZM | 220 | 300 | 20 |
| S250GD+ZM | 250 | 330 | 19 |
| S280GD+ZM | 280 | 360 | 18 |
| S320GD+ZM | 320 | 390 | 17 |
| S350GD+ZM | 350 | 420 | 16 |
DIMENSIONS OF SHEETS AND COILS [ mm ] grades S220GD, S250GD, S280GD
| Nominal thickness | 800 | 1250 | 1300 | 1400 | 1500 | |
|---|---|---|---|---|---|---|
| 0,50 - 0,59 | ||||||
| 0,60 - 0,79 | ||||||
| 0,80 - 0,99 | ||||||
| 1,00- 2,00 | ||||||
DIMENSIONS OF SHEETS AND COILS [ mm ] grades S320GD, S350GD
| Nominal thickness | 800 | 1000 | 1100 | 1250 | 1300 | 1380 | 1500 | |
|---|---|---|---|---|---|---|---|---|
| 0,50 - 0,59 | ||||||||
| 0,60 - 0,99 | ||||||||
| 1,00 -1,69 | ||||||||
| 1,70- 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 | ||||
| 0,50 - 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 | ||||
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
- ZINKOMAGTM - thickness: 0,40 - 1,70 mm
- width: 900 - 1300 mm
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 ] 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
SHEET FLATNESS TOLERANCES1) IN ACCORDANCE WITH EN 10143/06 [ 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 |
1) coil flatness tolerances are subject to prior agreement
2) reduced tolerances are subject to prior agreement
SHEET FLATNESS TOLERANCES1) IN ACCORDANCE WITH EN 10143/06 [ mm ] 260 ≤ Re < 360 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 | 13 | 10 | 8 | 6 | 5 |
| ≥ 1 200 < 1 500 | 15 | 13 | 9 | 8 | 6 |
| ≥ 1 500 | 20 | 19 | 12 | 10 | 9 |
1) coil flatness tolerances are subject to prior agreement
2) reduced tolerances are subject to prior agreement
COATING PROPERTIES
Zinc coated products (Z)
- normal zinc spangle (N)
- minimized spangle (M)
Zinc-iron alloy coated products (ZF)
Zinc-aluminum-magnesium coating (ZM)
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
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 |
| Zn-Al-Mg coating (ZM) |
Min. weight of surface coating from both sides [g.m-2] |
|---|---|
| same | 100 - 150 |
Other dimensions are subject to prior agreement
Informative thickness of zinc layer: 7g.m-2 ≈ 1μm
Logistics information
We offer flexible product delivery with multiple options for packaging and methods of transportation.
Shipping
The final products are shipped to customers via truck, railway, ships or transportation directly from our covered storage yard.
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 |
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 |
mbelicak |
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|
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|
mmalik |
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|
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|
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|
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|
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|
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|
ddzurovcin |
POSTAL ADDRESS:
U. S. Steel Košice, s.r.o.
Vstupný areál U. S. Steel
044 54 Košice
Slovak Republic
BILLING INFORMATION:
ID No.: 36 199 222
VAT ID: SK7020000119
Commercial Register: District Court Kosice I, Sec.: Sro, File No.: 11711/V
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