Casing or Tubing Couplings

Standard: API-5CT
Product use: Materials & connections

This is a product category. Confirm models, specifications, availability and lead times with suppliers.

Related supplier profiles · 147

Supplier profiles are selected by certificate product scope and standard. Certificate records are marked Active by the source; confirm current certificate status, product suitability and supply capability before purchasing.

Anshan Zhongyou Tipo Pipe & Tubing Co., Ltd.

Anshan City · Liaoning · People's Republic of China

Casing or Tubing Couplings

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Anton Oilfield Services (Group) Ltd.

Tianjin · People's Republic of China

Casing or Tubing Pup Joints; Casing or Tubing Couplings

Certificate dates need review

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Baoji Jinhui Petroleum Engineering Co., Ltd

Baoji · Shaanxi · People's Republic of China

Casing or Tubing Couplings

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Baoji Plant of Xi'an OCTG Branch of CNPC Baoji Petroleum Pipe Industry Co., Ltd.

Baoji · Shaanxi · People's Republic of China

EW Casing or Tubing (Plain End); EW Casing or Tubing (Threaded and Coupled); Casing or Tubing Pup Joints; Casing or Tubing Couplings; Processed Casing, Tubing, Coupling Stock, or Accessory Material (P…

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Baoshan Iron & Steel Co., Ltd./Core Base Facility

Baoshan District · Shanghai · People's Republic of China

EW Casing or Tubing (Plain End); Seamless Casing or Tubing (Plain End); EW Casing or Tubing (Threaded and Coupled); Seamless Casing or Tubing (Threaded and Coupled); Coupling Stock or Accessory Materi…

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BAOTOU GANGXING INDUSTRIAL (GROUP) HUAFA OIL TUBE CO., LTD.

Baotou · Inner Mongolia · People's Republic of China

Casing or Tubing Pup Joints; Casing or Tubing Couplings; Processed Casing, Tubing, Coupling Stock, or Accessory Material (Plain End); Processed Casing or Tubing (Threaded and Coupled); Processed Casin…

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Product use and sources

Castings, forgings and fasteners form the physical foundation of reliable equipment.

Standard description (API source text):

Casing and Tubing

Names and standard mappings come from the API Composite List search snapshot. Product-use groups and Chinese reading aids are OFMP editorial additions, not official API classifications or translations; original English names are retained for comparison. Category snapshot: 2026-10-10

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