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STRUCTURAL AND CORROSION RESISTANT STEELS

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In category Cold Rolled

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CHARACTERISTICS

I. Cold rolled sheets made of low carbon non-alloyed structural steel are used for the production of flat or cold-formed structural elements. Their application is determined by the minimum value of the yield point, or by the tensile strength.

II. Cold rolled sheets made of fine-grained, atmospheric corrosion
resistant structural steel are mostly used in the building industry and for various constructions. Improved resistance is due to the surface layer of oxides of alloying elements.

U. S. Steel Košice has implemented and maintains a quality control
system in accordance with the standard EN ISO 9001,as well as in
accordance with IATF 16949 for the automotive industry, issued by TÜV SÜD. A part of production is certified in accordance with the European Parliament Regulation 97/23/EC, AD2000W1 and by the Ü mark for steels used in German civil engineering.

KEY FEATURES

   

 

Cold rolled products supplies as coils, strips and sheets.

 

EN ISO 9001
IATF 16949

97/23/EC AD2000W1

For selected types of products

S215G, S245G, S325G

Grades according to DIN 1623/09

TECHNICAL SPECIFICATION

I. STRUCTURAL GRADES - BRAND CORRESPONDENCE

Germany
DIN 1623/09
USA U. S. Steel Košice
ASTM A 611/97 SAE
- Gr. A, B - KOSIL 200 S
S215G Gr. C type 1,2 1015 KOSIL 215 S
S245G Gr. D type 1,2 -  
S325G - -  

II. ATMOSPHERIC CORROSION RESISTANT GRADES - BRAND CORRESPONDENCE

Japan JIS G 3125/87 U. S. Steel Košice
SPA-C KONOX 315 S 1)

   1) minimum amount to be ordered - 2 000 t

CHEMICAL COMPOSITION

structural grades

Grades according to
DIN 1623/09
U. S. Steel Košice
Heat analysis in %
CMAX MnMAX SiMAX PMAX SMAX NMAX
KOSIL 200 S 0,16 0,60 0,030 0,025 0,020 -
S215G 0,18 1,50 - 0,030 0,025 0,0105
KOSIL 215 S 0,16 0,80 0,030 0,025 0,020 -
S245G 0,20 1,60 - 0,030 0,025 -
S325G 0,20 1,60 0,55 0,030 0,025 -

CHEMICAL COMPOSITION

atmospheric corrosion resistant

Quality according to
U. S. Steel Košice
Heat analysis in %
CMAX P SMAX AlMAX Mn Si Cr NiMAX Cu
KONOX 315 S 0,12 0,07 - 0,15 0,015 0,02 0,20 - 0,55 0,25 - 0,55 0,50 - 1,20 0,65 0,25 - 0,60

MECHANICAL PROPERTIES

structural grades

Grades according to
DIN 1623/86 T2
U. S. Steel Košice
Rp0,2 MIN
[MPa]
Rm
[MPa]
AMIN (%)
Lo = 80 mm
Angle of bend
180° 1)
KOSIL 200 S 200 310 - 430 22 0,5.a
S215G 215 360 - 510 20 -
KOSIL 215 S 215 360 - 470 20 0,5.a
S245G 245 430 - 580 18 -
S325G 325 510 - 680 16 -

MECHANICAL PROPERTIES  

atmospheric corrosion resistant

Grades according to
DIN 1623/86 T2
U. S. Steel Košice
Rp0,2
[MPa]
Rm
[MPa]
AMIN (%)
Lo = 80 mm
Angle of bend
180° 1)
KONOX 315 min. 315 min. 450 23 0,5.a

DIMENSIONS OF SHEETS AND COILS [ MM ]

 for KOSIL 200 S, KOSIL 215 S and corresponding

Nominal thickness Width
  750 1105 1265 1425 1500
0,400 - 0,449            
0,450 - 0,749           
0,750 - 1,149          
1,150 - 2,000         

DIMENSIONS OF COILS AND SLIT COILS [MM]

for S245 G, S325 G, KONOX 315 S and corresponding

Nominal thickness Width
  750 1015 1085 1200 1275 1325
0,550 - 0,649              
0,650 - 0,949            
0,950 - 1,249          
1,250 - 1,749        
1,750 - 2,000        

    The width of 700 - 749 mm at the thickness of 0,80 - 2,00 mm is the subject to prior agreement

DIMENSIONS OF SHEETS [MM]

Thickness Length
0,40 - 1,00 1 000 - 3 100
1,01 - 2,00 1 000 - 4 000

DIMENSIONS OF COILS AND SLIT COILS [MM]

Prázdny
Thickness Inner diameter Outer diameter Coil Slit coil
Width Weight Width Weight
0,40 - 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
0,40 - 2,00 approx. 600 750 - 1 500 2 - 17 kg.mm-1 of width 21 - 600 max. 15 000 kg

   NOTE: thickness is graded by 0,01 mm.

THICKNESS TOLERANCES IN ACCORDANCE WITH EN 10131/06 [ MM ]

Re < 260 MPa

Nominal thickness Normal tolerances at width Reduced tolerances at width
≤ 1 200  > 1200 ≤ 1 500 ≤ 1 200 > 1200 ≤ 1 500
> 0,40 ≤ 0,60 ± 0,03 ± 0,04 ± 0,025 ± 0,030
> 0,60 ≤ 0,80 ± 0,04 ± 0,05 ± 0,030 ± 0,035
> 0.80 ≤ 1,00 ± 0,05 ± 0,06 ± 0,035 ± 0,040
> 1,00 ≤ 1,20 ± 0,06 ± 0,07 ± 0,040 ± 0,050
> 1,20 ≤ 1,60 ± 0,08 ± 0,09 ± 0,050 ± 0,060
> 1,60 ≤ 2,00 ± 0,10 ± 0,11 ± 0,060 ± 0,070

   NOTE: reduced tolerances are subject to prior agreement

THICKNESS TOLERANCES IN ACCORDANCE WITH EN 10131/06 [ MM ]

260 < Re < 340 MPa

Nominal thickness Normal tolerances at width Reduced tolerances at width
≤ 1 200  > 1200 ≤ 1 500 ≤ 1 200 > 1200 ≤ 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

SHEET FLATNESS TOLERANCES1) IN ACCORDANCE WITH EN 10131/06 [ mm ]

Re < 260 MPa

Nominal width Normal tolerances at thickness Reduced tolerances2) at thickness
< 0,70 ≥ 0,70 < 1,20 ≥ 1,20 < 0,70 ≥ 0,70 < 1,20 ≥ 1,20
> 600 < 1 200 10 8 7 5 4 3
≥ 1 200 < 1 500 12 10 8 6 5 4
≥ 1 500 17 15 13 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 10131/06 [ mm ]

260 ≤ Re < 340 MPa

Nominal width Normal tolerances at thickness Reduced tolerances2) 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) coil flatness tolerances are subject to prior agreement
    2) reduced tolerances are subject to prior agreement

SURFACE FINISH AND ROUGHNESS VALUES

Surface finish Symbol Roughness
Bright b Ra ≤ 0,9 μm
Matt m 0,6 μm < Ra ≤ 1,9 μm
Rough r Ra > 1,6 μm

OTHER FEATURES

SURFACE TREATMENT

  • non-oiled - without corrosion guarantee
  • oiled - oil weight 0,5 - 2,5 g.m-2 
    (electrostatically applied oil layer)

WELDABILITY

  • steels are suitable for welding with standard techniques

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