Ruijian Petroleum Equipment (Tianjin) Co., Ltd. can provide API products such as oil casing & tubing, couplings, and pup joints etc.At present, we have 4 automated production lines for petroleum specialized pipes and 1 intelligent production line for external thickening and coupling production line. It can process and supply oil pipes, casings,  couplings and pup joint with outer diameters ranging from 48.3mm to 508mm, which can meet various steel grades and thread types such as J55, K55,N80, L80,L80-9Cr, L80-13Cr,P110,Q125 etc steel grade.

Large‑scale automatic production lines with full‑process quality control

 to meet supply demands of global oil & gas projects.

Our factory is equipped with complete sets of professional pipe‑processing facilities and mature manufacturing technology. 

We own strong technical strength and full‑range NDT & physical‑chemical testing instruments.

 Supported by sound quality‑control system, we strictly comply with API‑5CT standards to guarantee stable and reliable quality for every batch of OCTG products.

Steel Grade：H40, J55, K55, N80-1, N80-Q, L80-1, L80-9Cr, L80-13Cr, P110, Q125 etc

SIZE OD: 60.32 MM-508 MM (2.375"--20") 

Standard:API 5CT, GB, ISO11960, GOST

Type:NU, EU, IJ

Length：R1, R2, R3

Service: NDT etc related rules of API 5CT and 5B. 

Annual output:150,000 tons OCTG, 

                         100,000m sand screens.

We are a professional manufacturer of API 5CT OCTG casing, tubing, coupling, pup joint and matchable accessories.

Our modern factory is equipped with complete production to deliver reliable oilfield pipe solutions for global customers.

Our company owns modern standardized workshops, fully equipped for mass production of API 5CT OCTG casing, tubing and related pipe products.

With well-organized production flow and complete testing facilities, we provide one-stop supply services covering raw material control, manufacturing and quality inspection.

We deliver stable quality and reliable lead times to support projects worldwide. For regular orders and project supplies alike, we are committed to creating long-term value for our global clients.

Advanced production lines and heavy-duty overhead cranes are equipped inside our workshop.

We strictly follow API 5CT standards for processing OCTG casing, tubing and corresponding accessories.

Every pipe will go through multi-point inspection to guarantee stable quality before delivery.

To be a professional global manufacturer of oil & gas drilling tubular goods

Target API standard OCTG products, devote ourselves to oil & gas industry

Recruit talents on merit, 

build professional  team

Adhere strictly to API standards, quality underpins oil & gas exploitation

Focus on global client demands,

 pursue win-win cooperation