Seamless
API 5CT Seamless Tubing

API 5CT seamless tubing in J55, L80, N80, and P110 — for production, injection, and gas-lift service in onshore and offshore wells.

API 5CT seamless tubing

OVERVIEW

The conduit from reservoir to surface.

Global Seamless manufactures API 5CT seamless tubing for production, injection, gas-lift, and service applications. Every joint is API-monogrammed with full drift, hydrostatic, and non-destructive testing.

Our OCTG tubing program covers conventional production strings, ESP installations, gas-lift mandrel strings, and corrosion-resistant completions — with EUE, NUE, and premium connection options.

✓ API 5CT licensed with API monogram
✓ Grades: J55, L80, N80, P110
✓ Connections: EUE, NUE, premium
✓ Sizes: 2-3/8" through 4-1/2"
✓ Sour service L80 per NACE MR0175

API 5CT seamless production tubing

DIMENSIONAL SPECIFICATIONS

Available size range.

Cold Drawn Seamless (CDS)

Outside Diameter (OD)	Wall Thickness	Range	Connection
2-3/8" (60.3 mm)	per API schedule	R2	EUE / NUE
2-7/8" (73.0 mm)	per API schedule	R2	EUE / NUE
3-1/2" – 4-1/2"	per API schedule	R2	EUE / Premium

APPLICATIONS & INDUSTRIES

J55 · L80 · N80 · and P110.

STANDARD

J55 · N80

General production and injection service in non-corrosive well environments.

SOUR SERVICE

L80

Controlled-yield grade for H2S service per NACE MR0175 — SSC resistant.

HIGH STRENGTH

P110

High-yield tubing for deep wells and high-pressure completion designs.

TECHNICAL ARTICLES

Latest insights on production tubing.

ARTICLE

EUE vs NUE Tubing

Choosing the right API tubing connection for your completion.

ARTICLE

L80 Sour Service Tubing

NACE MR0175 requirements for H2S-containing wells.

ARTICLE

Tubing Design Gas Wells

Sizing and grade selection for high-velocity gas production.

GET A QUOTE

Send your tubing spec.
Get a proposal in 24 hours.

OD, weight, grade, connection, range, quantity — we revert with a technical & commercial proposal.

Seamless
API 5CT Seamless Tubing

The conduit from reservoir to surface.