Product Detail

API 5CT Petroelum Casing Tube

Surface: Black
Size: Customized
Material: Q195-Q420 Series,SS400-SS540 Series,S235JR-S355JR Series,ST Series,A36-A992 Series,Gr50 Series,etc.
Color: Customized
MOQ: 10 Tons
Sample: Provide

seamless tube.jpg

Commodity Name

Petroleum Casing Pipe



ASTM A106, ASTM A53, API 5L B, ASTM A179, ASTM A210, ANSI B36.10

GB 5310.GB6479 GB9948.GB/T17396

GB 3087. GBT 8162 ,GB/T8163

Outer Diameter

13.7mm-1219.2 mm

Wall Thickness

2 .11mm-59.54 mm


In bundles tied with steel stripes

Payment Term

T/T, L/C at sight

A53(A.B)A106 (A. B).0345,16Mn, 10#, 20#, 45# S235JR. S355JR, ASTMA252, Gr.2, Gr.3, ST37, ST42, ST52, GrB, X42 X46 X52 X5 X6 X65, X70. etc

for petroleum/ natural gas pipeline.

for conveying water,drainage.coal gas, mineral slurry and other low-middle pressure liquids.

for chemical industry. building structure,heat-supply and pile driving projects.

Petroleum casing is a steel pipe used to support the walls of oil and gas wells to ensure the normal operation of the entire oil well after drilling and completion.

Each well uses several layers of casing according to different drilling depths and geological conditions. Cement is used to cement the well after the casing is run down. Unlike tubing and drill pipe, it cannot be reused and is a disposable material. Therefore, casing consumption accounts for more than 70% of all oil well pipes.

Casings can be divided into pipes, surface casings, technical casings and oil casings according to their usage.

The essence of oil casing is:

1. During the drilling process, as the depth of the well increases, the required mud density will increase, and the upper and bottom layers may leak. The role of the casing is to prevent the upper layer from leaking when drilling the lower layer.

2. The last oil pipe and tail pipe are oil passages. The purpose is to stabilize the formation and prevent collapse. If the formation is hard, the well can be completed in the open hole.

Open hole completion can only be applied to a single oil and gas layer with hard and tight rock formations, no water-bearing interlayers, no collapsible interlayers, or certain oil and gas layers with the same properties and similar pressures.


Q: What are the main products you can supply?

A: We are the professional and famous factory in China for Stainless Steel Sheet/Coils/Tubes/Profiles/Composite packaging Materials; Aluminum; Copper; Alloy Steel; Corten Steel; Wear Resistant Steel and Carbon Steels.

Q: Will your company could accept the customized and OEM products?

A: Yes, we can do the production based on your drawings and with your logo, also because we have a very strong design and development team, so the feedback is very good for customized products.

Q: What are the advantages of your company?

A:(1): Prime quality and reasonable price.

(2): Wide excellent experiences with after-sale service.

(3): Every process will be checked by responsible QC which insures every product's quality.

(4): Professional packing teams which keep every packing safely.

(5): Trial order can be done in one week.

(6): Samples can be provided as your requirements.

Q: What are your payment terms?

A: Commonly two payment terms for new customers,

1) 30%T/T as deposit, 70% balance against B/L copy.

2) 100% Irrevocable L/C at sight.

If you need other terms, please feel free to contact us too, we will try our best.

Q: How about the samples? Is it free to pay extra fees?

A: Yes, we would like to supply the samples before order, if the samples are from stock, it will be free, if the samples are from new production, we will charge some reasonable cost, but this amount will be deducted from your first order invoice.

Q: How long is your delivery time?

A: Our daily inventory is more than 8000 tons, so far common products size, just need 5 days from stocks; if the special size from new production, delivery 20-30 days.

Different products have different delivery times. The products will be delivered as soon as possible on the basis of quality assurance.

Q: How to control and guarantee your shipment quality?

A:1) All our factories are ISO9001 certified facilities;

2) World famous origin mills as TISCO, Baosteel;

3) Ex factory inspection by our own laboratory;

4) SGS/BV Third party inspection before delivery.