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Linepipe Steel Plate

TMCP and normalized linepipe plate for LSAW and HSAW pipe mills, in PSL1 and PSL2 with sour-service options.

StandardsAPI 5L / ISO 3183 · X52 · X60 · X65 · X70 · X80 · L360–L555
Grades available8 datasheets
Thickness6 – 200 mm
CertificateEN 10204 3.1 / 3.2

Typical applications

  • Oil and gas transmission linepipe
  • High-pressure trunk lines
  • Sour-service flowlines
  • Pipe fittings and bends

Inspection & documentation

  • PSL2 supplementary requirements (SR1–SR18)
  • HIC / SSC testing to NACE for sour service
  • UT to EN 10160
  • EN 10204 3.1 / 3.2 mill test certificate
Linepipe plate components cut to drawing with rounded cut-outs
Plate components cut to drawing with rounded cut-outs, edges cleaned and inspected before packing.

Grades in this family

GradeStandardNearest equivalentDatasheet
API5L-B(L245) API 5L / ISO 3183 ISO 3183 L245 / API 5L B View →
X52(L360) API 5L / ISO 3183 ISO 3183 L360 / API 5L X52 View →
X56(L390) API 5L / ISO 3183 ISO 3183 L390 / API 5L X56 View →
X60(L415) API 5L / ISO 3183 ISO 3183 L415 / API 5L X60 View →
X65(L450) API 5L / ISO 3183 ISO 3183 L450 / API 5L X65 View →
X70 API 5L / ISO 3183 ISO 3183 L485 / API 5L X70 View →
X70(L485) API 5L / ISO 3183 ISO 3183 L485 / API 5L X70 View →
X80 API 5L / ISO 3183 ISO 3183 L555 / API 5L X80 View →

Nearest equivalent grades are indicative only. They show which grade other standards use for a comparable strength and toughness level; they are not interchangeable without engineering review and a purchase specification.

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