Casing & Tubing

We offer a complete range of API 5CT casing and tubing for all types of oil exploration and production demands. The material includes carbon steel (for the most common use), alloy, chrome and high alloy steels. API 5CT grades cover J55 / K55, N80 type 1 and N80Q, L80, C90, T95, P110, Q125, and with additional requirements of 13 Cr.

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Supply Range

Casing Size: OD: 4-1/2″ – 20″ (114.3 mm – 508 mm)

Tubing Size: OD: 2-3/8″ – 4-1/2″ (60.3 mm – 114.3 mm)

WT: 0.205″ – 0.635 mm; Length: R1 (4.88 m – 7.62 m), R2 (7.62 m – 10.36 m), R3 (10.36 m – longer)

Standard: API 5CT, JIS G3439, BS EN ISO 11960, NF M87-207

Material: H40, J55, K55, N80, L80, C90, T95, P110, Q125, 13Cr

Type of connections for Casing: BTC (thread coupling buttress), LTC (long round thread coupling), premium connection.

Types of connections for Tubing: BTC, NUE, EUE, Premium

Usage: Conveying gas, water, oil, natural gas

Premium connections

Premium connections that replace the connections VAM TOP, NEW VAM, HYDRIL CS, TPCQ (TPCO), HSM-1/HSM-2 (Hengyang Valin Connections), and etc.