ZC Steel Pipe

Products

API 5CT casing & tubing · API 5L line pipe · Coated pipe · Premium connections

OCTG — Casing & Tubing

Casing & Tubing
Casing & Tubing
2⅜" – 20" OD casing; 1.050" – 4½" OD tubing

API 5CT seamless casing and tubing from H40 through Q125, including sour-service grades (L80, T95, C110) and HPHT grades (P110, Q125). PSL-1 and PSL-2, BTC and premium connections, full MTC documentation.

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Premium Connection
Premium Connection
2⅜" – 13⅜" OD casing; 1.900" – 4½" OD tubing

ZC-patented premium connections (ZC-1 through ZC-6) qualified to API 5C5 CAL IV. Metal-to-metal seal for gas-tight integrity in HPHT, deviated, sour service, and deep-well applications. Independent patents — not a licensed thread system.

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Line Pipe

Coated Line Pipe
Coated Line Pipe
2" – 60" OD · FBE / 3LPE / 3LPP · Seamless & Welded

Factory-applied FBE, 3LPE, and 3LPP anti-corrosion coating on API 5L line pipe. ISO 21809 qualified, 100% holiday tested. Internal FBE and project-specified cutback lengths available.

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Seamless Line Pipe
Seamless Line Pipe
½" – 24" OD · PSL1 & PSL2 · Sour service available

API 5L seamless line pipe X52–X80, PSL1 and PSL2. No weld seam. Sour service grades with HIC testing per NACE TM0284. FBE, 3LPE, and 3LPP coating available.

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Welded Line Pipe — ERW / LSAW / SSAW
Welded Line Pipe — ERW / LSAW / SSAW
2" – 60" OD · ERW / LSAW / SSAW · PSL1 & PSL2

API 5L welded line pipe in ERW (2–24"), LSAW (16–60"), and SSAW (16–60"). Grades X52–X80, PSL1 and PSL2. LSAW is the standard for large-diameter high-pressure gas transmission and offshore pipelines.

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