api 5ct j55 tubing seamless steel oil pipe 28cr seamless steel pipe api 5ct grade q125 steel pipe 3 1/2" eue pup joint

api 5ct j55 tubing seamless steel oil pipe 28cr seamless steel pipe api 5ct grade q125 steel pipe 3 1/2" eue pup joint

Shengji has more than 30 years’ experience in making OCTG products. This is one of the biggest API 5CT Casing and Tubing manufacturer in China. Shengji OCTG includes HDPE/EXPE liner tubing, epoxy resin coating, anti-corrosion tubing, coated sucker rod, vacuum insulated tubing & casing and oilfield precise rolling pipe. Since 1999, Shengji has been authorized to use API 5CT monogram. It has also adopted defect detective machine to control the quality of all OCTG products. So far, Shengji has exported tons of OCTG products overseas and has won a good reputation among its clients.  

Shengji OCTG categories:

1. API 5CT tubing and casing.

2. HDPE/EXPE Liner tubing.

3. Epoxy resin coating, anti-corrosion tubing.

4. Coated sucker rod.

5. Vacuum insulated tubing & casing.

6. Oilfield Precise Rolling Pipe.

Shengji is one of the biggest manufacture of OCTG tubing in China. It owns 8 thread processing lines, 2 upsetting lines (the 1st upsetting line among oil field API 5ct tubing manufacturers in China), 1 leading domestic steel pipe overall heat treatment line, 1 surface rust removal line and NDT line. Shengji produces 100,000 tons of OCTG tubing annually, which are exported to the U.S., Syria and Oman.

Shengji OCTG products are popular for their stable and reliable quality. The company conducts all OCTG quality tests as per the latest version of API 5CT.

With Shengji’s own national laboratory, the company has full control over OCTG tubing quality. Shengji’s OCTG come in different sizes from 2 3/8” to 4 1/2” with steel grade of J55, N80, L80, K55, 80SS and P110. Premium grade threads such as VAM, VAM TOP, etc. are also available.

1. Sales volume around 100,000 tons per year.

2. Stable and reliable in quality.

3. Manufacture and testing according to API 5CT latest version.

4. Been sold to US, Syria, Oman.

5. Defect detective 100% before delivery.

1.Factory or Trading company

We are factory. SJ established in 1964, has 18 production plants, 8 subsidiaries and several office around the main oilfield in the world.

2.Payment Term

30% deposit before production, 70% balance before shipment.

3.Quality Control

There will be strict inspection and testing for every order before shipping out.The quality management system certification including APIQ1, ISO9001 and HSE management system certification  have also been granted to Shengji.We have 100% test before delivery.

4.Shipping way

Sample order: we suggest Courier express or by air.

Bulk order: we suggest by train or by sea.

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