Outokumpu quarto plate extends NORSOK

Outokumpu’s largest quarto plate production unit in Degerfors, Sweden has recently extended its product offering certified by NORSOK standards and renewed its existing qualification. The extended approvals follow an extensive investment program at the mill, completed in 2014, through which the mill’s production capability and capacity were enhanced. The NORSOK standards are developed by the Norwegian petroleum industry to ensure adequate safety and cost effectiveness for metals used in the oil and gas applications.


As part of the EUR 100M investment at the Degerfors mill, six new furnaces for heat treatment have been installed and the new batch furnaces have now been recognized to meet the process qualification requirements according to NORSOK M-650 Ed. 4. The process qualification was completed at the end of November 2015.

Veronica Sundberg, project leader for NORSOK approvals at Degerfors, says: “The NORSOK standard sets high demands for material properties, for example regarding corrosion resistance and microstructure. The NORSOK standard requires for example process stability and ability to do heat treatment within a narrow temperature range. This is something we have managed to improve significantly thanks to our recent investment in Degerfors.”

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