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Structural Steel Russian Standards

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Structural Steel Russian Standards

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  1.   Steel grades according to Russian standards           Mechanicalproperties                        Standard       Minimum elongation AL0= 5,65*√S0 % Notch impact test Minimum yield Bend test Tensile strength Rm, MPa strength ReH, MPa Min. absorbed energy               after artificial ageing KCU J/cm2 Temperature KCUJ/cm2       Nominal thickness (mm)  Nominal thickness (mm) Nominal thickness (mm) Nominal thickness (mm) Nominal thickness (mm) °C                       ≤10 >10 ≤20 >20 ≤40 >40 ≤100 >100 ≤10 >10 ≤20 >20 ≤40 >40 ≤20 >20 >3 ≤5 >5 ≤10 >10 ≤26 >26 ≤40 >3 ≤5 >5 ≤10 >10 ≤26 >26 ≤40                                                                                                       GOST 535-2005 St3ps* cat 5 245 245 235 225 205 370-480 370-480 26 25 23 d=a d=2a -20 49 49 29 - 9,8 - - -                                         GOST 535-2005 St3sp* cat 5 255 245 235 225 205 380-490 370-480 26 25 23 d=a d=2a                 Standard        ≤10 >10 ≤20 >20 ≤140 ≤10 >10 ≤20 >20 ≤40 >40 ≤20 >20 ≤10 >10 ≤20 >20 ≤140 ≤10 >10 <20 ≥140 ≤20 Grades                                                               GOST 19281- 2014 09G2S* 345 345 345 480 480 21 21 21 d= 2a d=2a -40 39 29 29 29 29 29                                                             *    Available upon agreement. http://www.dbmtsteel.com/                                                                                                                                                     Page 1 of 2   

  2.   Chemical composition     Standard     Ladle analysis                                                                                                                                                     C Mn S P Si Cu max % Ni max % Cr max % V CE max. % max. % max. % max % Other elements       % % %                   GOST 380-2005 St3ps cat 5 0,14-0,22 0,40-0,65 0,050 0,040 0,05-0,15 0,30 0,30 0,30 1)                 GOST 380-2005 St3sp cat 5 0,14-0,22 0,40-0,65 0,050 0,040 0,15-0,30 0,30 0,30 0,30 1)                 GOST 09G2S ≤0,12 1,3-1,7 0,035 0,030 0,5-0,8 0,30 0,30 0,30 0,12 0,46 2) 1) 19281-2014       1)        Max. Nitrogen should not exceed 0,012%. Non‐binding Nitrogen content should not exceed 0,008%.        It is allowed to use Al up to 0,05% and Ti up to 0,03%.      2)         CE = C + Mn/6 + Si/24 + Cr/5 + Ni/40 + Cu/13 + V/14 + P/2                                          http://www.dbmtsteel.com/                                                                                                                                                     Page 2 of 2   

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