Steel grades

S450GD-HyPer® + Magnelis® Structural steel grades

Magnelis® is a flat carbon steel product coated on both sides with a zinc-aluminium-magnesium alloy. This alloy, composed of 93.5% zinc, 3.5% aluminium, and 3% magnesium, is applied by means of a continuous hot dip galvanising process. This optimum chemical composition has been selected to provide the best results in terms of corrosion resistance.

S450GD-HyPer® + Magnelis® structural steel grades are mainly used in:

  • Construction: structural or non-structural profiles, roofing profiles
  • Solar energy generation: structures for photovoltaic plants

Technical information

These grades have additional technical guarantees compared with the EN 10346:2015 standard and fulfil the ductility requirements of Eurocode 3, Part 1.1:

  • A minimum proportional elongation of 15% (corresponding to 13% A80 for thickness below 3 mm)
  • Ultimate strain higher than 15x yield strain
  • Ratio of min. tensile strength to min. yield strength is more than 1.1

Mechanical properties:

EN Standard Designation Direction Thickness Re Rm A80
  EN 10027-1 EN 10027-2   (mm) (MPa) (MPa) (%)
  S450GD-HyPer® + Magnelis®   L 0,5 - 0,7 450 - 570 510 - 650 ≥ 15
0,7 - 3
3 - 6
  T 0,5 - 0,7 500 - 620 530 - 690 ≥ 13
0,7 - 3
3 - 6

Chemical properties:

EN Standard Designation Thickness C Mn P S Si Al Nb Ti
  EN 10027-1 EN 10027-2 (mm) (%) (%) (%) (%) (%) (%) (%) (%)
  S450GD-HyPer® + Magnelis®   0,5 - 6 ≤ 0.20 ≤ 1.70 ≤ 1.100 ≤ 0.02 ≤ 0.060 ≥0.02 ≤ 0.006 ≤ 0.12

Metallic coating:

EN Standard
Designation Coating Weight (double side)
Coating thickness (µm per side)*
    (g/m²)  
EN 10346 S450GD-HyPer® + Magnelis® ZM120 120 10
ZM175  175  14
ZM200  200 16
ZM250  250 20
ZM310 310 25
ZM430 430 35