API 5ct oilfield tubing pipe api casing j55 casing pipe N80 casing and tubing

FOB Reference Price:Get Latest Price
$100.00 - $500.00 / Pieces | 1 Piece/Pieces (Min. Order)
Lead Time:
Quantity(Pieces) 1 - 1000 >1000
Est. Time(days) 40 Negotiable
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Quick Details
Grade Group:
API J55-API P110
API J55, API K55, API N80, API L80, API P110
3.68 - 9.52 mm
Section Shape:
Outer Diameter(Round):
4.5 - 4.9 inch
Place of Origin:
Shandong, China (Mainland)
Oil Pipe
Cold Rolled
Surface Treatment:
Copper Coated
Special Pipe:
API Pipe
Alloy Or Not:
Is Alloy
Secondary Or Not:
Oil Tubing
Connection thread1:
Outside diameter:
Wall thickness:
Connection thread2:
Supply Ability
Supply Ability:
3000 Piece/Pieces per Year
Packaging & Delivery
Packaging Details
international standard wooden case or as per client's requirement
Qingdao /Tianjin
Lead Time :
Quantity(Pieces) 1 - 1000 >1000
Est. Time(days) 40 To be negotiated
Product Description

1.     Certification and Application



ISO9001:2008, ISO14001:2004,  OHSAS18001


Outer Diameter

26.67(1.05"), 33.40(1.315"), 42.16(1.66"), 48.26(1.9"), 60.3(2 3/8"), 73.02(2 7/8"), 88.9(3 1/2"), 101.6(4"), 114.3(4 1/2")

Casing Tube


Surface casing, production casing(also called oil string casing), intermediate casing(used for abnormal pressure)

Outer Diameter

114.3(4 1/2"), 127(5"), 139.7(5 1/2"), 168.28(6 5/8"), 177.8(7"), 193.68(7 5/8"), 219.08(8 5/8"), 244.48(9 5/8"), 273.05(10 3/4"), 298.45(11 3/4"), 339.73(13 3/8"), 406.40(16"), 473.08(18 5/8"), 508(20")


 2.     Steel Grade of Tubing and Casing Tube


Steel Grade

The first group

HJ55, K55, N80 tubing and casing tube

The second group


The third group

P110 tubing and casing tube


3.     Length Range of Oil Casing Tube



Range 1 (m)

Range 2 (m)

Range 3 (m)

Casing Tube and Liner Tube
Total Length Range
Length Range of 95% and Larger Carrying Capacity: a
Maximum Allowable Amount of Change
Minimum Allowable Length

4.88~7.62 1.83 5.49

7.62~10.36 1.52 8.53

10.36~14.63 1.83 10.97

Tubing and the Casing Tube used as Tubing
Overall Length Range b
Length Range of 100% Carrying Capacity: a
Maximum Allowable Amount of Change

6.10~7.32b 0.61

8.53~9.75c 0.61

11.58~12.80d 0.61

Integral Joint Tubing (including IJ/UF and IJ/SF)
Overall Length Range
Length Range of 100% Carrying Capacity: a
Maximum Allowable Amount of Change

6.10~7.92b 0.61

8.53~10.36 0.61

11.58~13.72 0.61

Packaging & Shipping



Our Services

 A: Your inquiry related to our products or prices will be replied in 24 hours.
B: Protection of your sales area, ideas of design and all your private information.
C: Best quality and competitive price.


Company Information

Dongying Zhaoxin Industry and Trade Co.,Ltd is an ISO-9001, ISO-14001, OHSAS-18001 certified company and has all the quality systems in place for design, planning,manufacturing and quality monitoring & traceability to ensure that Dongying Zhaoxin Industry and Trade Co.,Ltd products match the highest quality & reliability Standards similar to any International major in this field.

Dongying Zhaoxin Industry and Trade Co.,Ltd with perfect attitude, product and service, is going to make further development together with customers at home and abroad .



1) How can I place order?
A: You can contact us by email about your order details, or place order on line.

2) How can I pay you?
A: After you confirm our PI, we will request you to pay. T/T (HSBC bank) and Paypal, Western Union are the most usual ways we are using.

3) What’s the order procedure?
A: First we discuss order details, production details by email or TM. Then we issue you an PI for your confirmation. You will be requested to do pr -epaid full payment or deposit before we go into production. After we get the deposit, we start to process the order. We usually need 7-15days if we don’t have the items in stock. Before production has been finished, we will contact you for shipment details, and the balance payment. After payment has been settled, we start to prepare the shipment for you.

4)How do you take care when your clients received defective products?
A: replacement. If there are some defective items, we usually credit to our customer or replace in next shipment.

5)How do you check all the goods in the production line?
A: We have spot inspection and finished product inspection. We check the goods when they go into next step production procedure.

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