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Oil Pipeline

Oil Pipeline
Oil country tubular goods (OCTG) are the indispensable "blood vessels" and "skeleton" of the oil and gas industry. Unlike ordinary industrial pipelines, OCTG needs to operate in extreme environments thousands of meters underground, including high temperatures, high pressures, and strong corrosion, thus requiring extremely high performance and reliability.
OCTG is not a single product, but a series, mainly including drill pipe, casing, and tubing. Each component performs its specific function in the oil well, working together to ensure the safe and efficient extraction of oil and gas.

No. 121, Daqiao Road, Licheng District, Jinan City

Product Description
Spot warehousing
Product Inspection
Product Measurement
Customer Feedback
Parameter categoriesSpecific projectsDetailed description/numerical range
Specifications and dimensionsOuter diameter (OD)Tubing: 1.05" - 4.5" (approx. 26.7mm - 114.3mm)

Casing: 4.5" - 20" (approx. 114.3mm - 508mm)

Drill Pipe: 2-3/8" - 6-5/8"

Wall thickness (WT)3.0mm - 25mm

 Commonly used tubing sizes: 3.7mm - 12.7mm

 Commonly used casing sizes: 5.2mm - 16mm

lengthR1 (Short Meter): 4.88m - 7.62m

R2 (Long Meter): 7.62m - 10.36m

R3 (Extra Long): Over 10.36m

Material steel gradeCommon steel gradesJ55, K55 (General oil wells, lower strength)

N80, L80 (High strength, L80 corrosion resistant)

P110 (Ultra-deep wells, extremely high strength)

C90, T95 (Special for hydrogen sulfide corrosion resistance)

Implementation StandardsInternational StandardsAPI Spec 5CT (Globally recognized standard for oil pipes)

API Spec 5B (Threading standard)

Chinese national standardGB/T 19830 (Petroleum and Gas Industry - Casing and Tubing)

SY/T 6194 (Steel Pipes for Oil and Gas Well Casing or Tubing)

Mechanical propertiestensile strength≥ 689 MPa (N80)≥ 862 MPa (P110)
Yield strength552 - 758 MPa (N80)758 - 965 MPa (P110)
elongation≥ 10% - 15% (depending on wall thickness and steel grade)
Thread typeConnection typeShort round thread (STC)

Long round thread (LTC)

Offset trapezoidal thread (BTC)

Straight-through type (XL/EUE)

End processingformNo thickness (NU) Thickened exterior (EU)


仓库现货8


01

Acid and alkali resistance test

02

Zinc layer experiment

03

Bending test

04

Yield strength test

05

Tensile strength test

06

Spectral detection

07

Hardness testing

08

Chemical composition detection

壁厚测量

Thickness measurement

厚度测量

Thickness measurement

厚度测量666

Thickness measurement

半径测量

Radius measurement

直径测量

Diameter measurement

直径测量2

Diameter measurement

长度测量

Length measurement

涂层测量

Coating measurement

TESTIMONIALS

The quality of this batch of steel pipes far exceeded expectations. The material is uniform and thick, the cut is smooth and burr-free, and the installation is seamless. The project efficiency was maximized, and the cooperation was very pleasant!

Julian

Julian

Sales Director

We've collaborated several times, and the hardness and toughness of the steel perfectly meet our project standards. The delivery speed is fast, and the packaging is secure with no damage. A reliable supplier is our first choice!

John Smith

John Smith

Sales Director

The surface treatment of the steel pipe is very good, the anti-rust coating is uniform and firm, and the dimensional accuracy is very high. It does not require secondary processing at all, which greatly saves our time and costs.

Freya

Freya

Purchasing Manager

The steel is very cost-effective, has stable mechanical properties, and passed the test on the first try. Customer service responded promptly, and communication was very smooth. We will continue to cooperate with them in the long term.

Elara

Elara

Purchasing Manager

The custom-made irregular-shaped steel pipes perfectly replicated our design drawings. The workmanship was exquisite and flawless, and the delivery time perfectly met the project schedule. We are extremely satisfied with this purchase!

Lila

Lila

Purchasing Manager

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