Offshore Grades

The challenging conditions and engineering complexities of offshore construction projects means that offshore grade steel is the only grade capable of meeting the demands required for rigorous and sustained integrity of these structures.

Offshore structures, built specifically for drilling oil and gas deposits deep under the sea bed, are constantly exposed to the corrosive effects of sea water, the force of powerful sea currents, strong tides and high winds.

The specific technical specification of offshore grade steels are critical to ensure they withstand unrelenting pressures from the elements, thereby providing a longer working life, greater safety and reducing the risk of failure which, in certain instances, could be disastrous, if not fatal.

Key properties of offshore grade steel are:

  • High yield strength
  • Good internal soundness
  • Excellent weldability
  • Good resistance to brittle facture, both longitudinal and transverse
  • High resistance to lamellar tearing
  • Low phosphorus and sulphur contents.

Therefore, the S355G10 / S355MLO / S355NLO structural grades are some of the benchmark steels specified for offshore structure applications. These materials can be delivered as normalized (N) or thermo-mechanically rolled (M), and supplied in accordance with EN10225:2001. This grade is renowned for its good tensile and yield strength.

A QUICK GUIDE TO ALL STEEL GRADES AND SIZES

Download a list of all the grades and sizes stocked as standard by Murray Plate.

Offshore Grades AVAILABLE

 
450 EM / S460G1
450EM and S460G1 steel plate is available in a range of sizes and thicknesses from Murray Steel Products, along with associated processing services, including profiling, cutting and drilling.
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S355G3+N
S355G3+N offshore steel plate available in a range of size and thicknesses from Murray Steel Products. Full cutting, profiling and drilling service available.
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S355G8
S355G8 steel plate is available in a wide range of sizes and thicknesses from Murray Steel Products, along with associated processing services, including profiling, cutting and drilling.
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S355G8+N
S355G8+N offshore steel plate stocked by Murray Steel Products. Full cutting, profiling and drilling service available.
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S355G10 / S355MLO / S355NLO
S355G10 steel plate is available in a wide range of sizes and thicknesses from Murray Steel Products, along with associated processing services, including profiling, cutting and drilling.
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S355G10+N
S355G10+N offshore steel plate in stock at Murray Steel Products ready for dispatch. Full cutting, profiling and drilling service available.
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S355EMZ
S355EMZ steel plate is available in a wide range of sizes and thicknesses from Murray Steel Products, along with associated processing services, including profiling, cutting and drilling.
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S460G2+Q
S460G2+Q offshore steel plate available from Murray Steel Products. Full processing service, including cutting, profiling and drilling.
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