Steels for structural applications as per EN 10346

Standards
GradeSteel grade no.DIN 17162/2ASTM A 466 MBS2989NF A 36-322UNI 5783
S250GD1.0242StE250-2ZGrade BZ 25C 250Fe E250 G
S280GD1.0244StE280-2ZGrade CZ 28C 280Fe E280 G
S320GD1.0250StE320-2Z--C 320Fe E320 G
S350GD1.0529StE350-2ZGrade DZ 35C 350Fe E350 G
S390GD1.0238-----
S420GD1.0239-----
S450GD1.0233-----
Feasibility range
GradeThicknessWidth
 min.max.max.
S250GD0.34.01520
S280GD0.34.01520
S320GD0.34.01520
S350GD0.384.01520
S390GD0.493.51520
S420GD1.383.51520
S450GD0.903.01520

Feasibility on the specific combination of thickness and width must be verified in the order phase.

Mechanical properties
GradeYield strengthTensile strengthElongation
 MPaMPa%
S250GD≥ 250≥ 330≥ 19
S280GD≥ 280≥ 360≥ 18
S320GD≥ 320≥ 390≥ 17
S350GD≥ 350≥ 420≥ 16
S390GD≥ 390≥ 460≥ 16
S420GD≥ 420≥ 480≥ 15
S450GD≥ 450≥ 510≥ 14
Surface finish
gradeNAMAMB
 mmmmmm
S250GD0.3 - 4.00.3 - 4.00.3 - 3.2
S280GD0.3 - 4.00.3 - 4.00.3 – 3.2
S320GD0.3 - 4.00.3 - 4.00.3 – 3.2
S350GD0.38 - 4.00.38 - 4.00.38 – 3.2
S390GD0.49 – 3.50.49 – 3.50.49 – 3.2
S420GD1.38 – 3.51.38 – 3.51.38 – 3.2
S450GD0.90 – 3.00.90 – 3.00.90 – 3.0