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High strength for Jack-up

ADVANTAGES
Typical Applications

SuperElso® 690CR is a 690 MPa (100 ksi) yield strength quenched and tempered steel adapted for legs of offshore jack-up platforms.

Specially designed grades
This grade has been specially designed for offshore applications requiring the use of heavy thick plates (up to 255 mm/10″) with demanding mechanical properties requirements.

Adapted chemical composition
The chemical composition of SuperElso® 690 CR has been carefully adapted and allows the achievement of high impact values (> 50 J at – 60°C) across the thickness while respecting the tensile properties required.

Cost efficiency of manufacturing
The very low carbon content of this material allows cutting and welding under classical conditions, increasing in this way the cost efficiency of manufacturing.

 

The main application of SuperElso® 690CR being the manufacturing of racks and chords, particular attention has been paid on forming, oxycutting and welding properties. Industeel produces welded elements for jack-up legs manufacture. These elements are assembled from cut racks and hot pressed chords welded on both sides of each rack.

Examples of applications

Racks

  • Length: up to 15.5 m
  • Thickness: up to 255 mm
  • Width: 600 to 1100 mm
Racks
Chords

  • Length: up to 10 m
  • Thickness: up to 255 mm
Chords
Welded elements

  • Length: up to 24.5 m
  • Weight: up to 70 tonnes
Welded elements
Jack-up legs
Jack-up legs
Jack-up for windfarm installation
Jack-up for windfarm installation
Racks
Racks
INDUSTEEL TRADEMARKS
STANDARDS
SuperElso® 690CR >>DNV-GL VL F690
>>ASTM A 514 Grades B, E, F, H, Q / ASTM A 517 Grade Q
>>ABS FQ 70