WINKEL U-Profiles with 30% increased load capacity

  • Higher load capacity at same sizes by using profiles with steelgrade S450 J2 mod.
  • Choice of smaller sizes (price advantage)
  • Higher resistance against wear out effects

Comparison S355 J2 - S450 J2 mod.

Notice: Yield point 1 is only valid for flange thickness < 20 mm, yield point 2 is only valid for flange thickness > 20 mm.
Characteristic S355 J2 S450 J2 mod.
Yield point 1 min 355 MPa [N/mm²] min 430 MPa [N/mm²]
Yield point 2 min 345 MPa [N/mm²] min 420 MPa [N/mm²]
Tensile strength 470 - 630 MPa [N/mm²] 550 - 700 MPa [N/mm²]
max. hertzian pressure 750 MPa [N/mm²] 900 MPa [N/mm²]

Strength properties steel S450 J2

Because of micro alloying with Vanadium and/or Niobium the steel grade S450J2 mod. has a significantly higher tensile and yield strength and a more fine-grained structure than the customary steel grade S355 J2.
In consequence of this and due to a stronger limitation of the elements P and S the steel shows a higher resistance to brittle fracture. Related to this is an increased bearing pressure which is shown by the diagram below.