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Industeel SUPERELSO® 690CR Quenched and Tempered High Strength Steel for Leg Components of Jack-up Rigs

Category Metal , Ferrous Metal , Carbon Steel , Medium Carbon Steel
Manufacturer Groupe Arcelor
Trade Name SUPERELSO®
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Industeel SUPERELSO® 690CR Quenched and Tempered High Strength Steel for Leg Components of Jack-up Rigs.pdf
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Material Notes:
Superelso® 690 CR (SE 690 CR) is a 690MPa (100ksi) yield strength quenched and tempered steel adapted for jack-up rig legs of offshore drilling platforms. Superelso® 690 CR is manufactured via the electric furnace with dephosphorisation, ladle refining and vacuum degassing to provide a reproducible, clean and homogenous steel. This material has been specially designed for offshore applications requiring the use of heavy thick plates (up to 250 mm/10") with demanding mechanical properties requirements. The chemical composition of SE 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. The main application of Superelso® 690 CR being the manufacturing of racks and chords, particular attention has been paid on forming, oxycutting and welding properties. The very low carbon content of this material allows cutting and welding under classical conditions, increasing in the way the cost efficiency of manufacturing.Mechanical properties for plates with thickness < 210 mm.ABS FH 40Information provided by manufacturer.
Mechanical Properties Metric English Comments
Tensile Strength, Ultimate 840 MPa
122000 psi
Typical, 1/4 t
790 - 940 MPa
115000 - 136000 psi
Guaranteed, 1/4 t
Tensile Strength, Yield >= 690 MPa
>= 100000 psi
1/2 t
770 MPa
112000 psi
Typical, 1/2 t
Charpy Impact >= 46.0 J

@Temperature >=-60.0 °C
>= 33.9 ft-lb

@Temperature >=-76.0 °F
1/4 t
65.0 J

@Temperature >=-60.0 °C
47.9 ft-lb

@Temperature >=-76.0 °F
Typical down to -60°C (1/4 t)
Component Elements Properties Metric English Comments
Carbon, C <= 0.15 %
<= 0.15 %
Chromium, Cr <= 0.70 %
<= 0.70 %
Iron, Fe 92.738 - 99.85 %
92.738 - 99.85 %
As remainder
Manganese, Mn <= 1.2 %
<= 1.2 %
Molybdenum, Mo <= 0.70 %
<= 0.70 %
Nickel, Ni <= 4.0 %
<= 4.0 %
Phosphorous, P <= 0.010 %
<= 0.010 %
Silicon, Si 0.15 - 0.45 %
0.15 - 0.45 %
Sulfur, S <= 0.0020 %
<= 0.0020 %
Vanadium, V <= 0.050 %
<= 0.050 %
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