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Seamless N80 L80 P110 R2 Oil production Casing Pipe

China Puyang Zhongshi Group Co., Ltd. certification
China Puyang Zhongshi Group Co., Ltd. certification
Recommendation is good. Reception is professional. Demo training is also very great. Wish more online training after getting the machine.2017.8.26

—— David

Thanks for your kindly hospitality. Your company is very professional , we will have nice cooperation in the near future. 2015.6.28

—— Sergey

Good company with nice service and high quality and high reputation. One of our reliable supplier , goods are delivered in time and nice package 2016.3.25

—— Steve

Thanks for your good after-sale service. Excellent training and technology support helps me a lot. 2018.4.23

—— Mostafa

Professional, very helpful, great price. Will use again for other items 2019.2.21

—— Ahmed

Thanks for zhongshi group supporting and guidence. With your help and instruction, I win more market share. 2017.9.26

—— Manuel

Nice cooperation with zhongshi group.Imperssive for your service and support. 2018.3.18

—— Luis

We are satisfied with your product's quality. We highly appreciate to see the excellent performances in production capacity and thanks for the specialist technical support from you 2018.11.16

—— Mohammed

Good company with professional service and high quality. Delivered in time. Our most trusted partner for sucker rod and OCTG pipe. 2018.7.24

—— Nicolas

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Seamless N80 L80 P110 R2 Oil production Casing Pipe


Large Image :  Seamless N80 L80 P110 R2 Oil production Casing Pipe

Product Details:

Place of Origin: China
Brand Name: Zhongshi
Certification: API 5CT, ISO, QHSE
Model Number: 1.05"-4 1/2"

Payment & Shipping Terms:

Minimum Order Quantity: 1 metric ton
Price: Negotiable
Packaging Details: Be bundled by steel strap
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Detailed Product Description
Production Class: PSL1, PSL2 Connections: EU, NU, Premium Connections
Structure: Seamless Length: R2
Section Of Shape: Round Technique: Hot Rolled
Usage: Oil Production
High Light:

seamless steel casing pipes


seamless drill pipe

Competitive price API K55 J55 N80 L80 P110 Casing for Oil production




Casing pipe is the steel pipe to support the wall of oil & gas wells, which falls into surface casing,

protective casing and production casing.



Technical specification:

Production name OCTG 11-3/4" API 5CT steel casing pipe
OD size (in) 4-1/2" ~ 20"
Steel grade J55/K55/N80/L80/P110
Thread type LTC,STC,BTC
Length R1 (4.88mtr-7.62mtr)
R2 (7.63mtr-10.36mtr)
R3 (10.37mtr-14.63mtr)
Heat treatment Normalized,Quencher+Temper



Mechanical properties:

Tensile and Hardness Requirements:

Steel grade Type Total elongation under load (%)


Yield strength (Mpa)


Tensile strength (Mpa)




min max HRC HBW
H40 - 0.5 276 552 414 - -
J55 - 0.5 379 552 517 - -
K55 - 0.5 379 552 655 - -
N80 1 0.5 552 758 689 - -
N80 Q 0.5 552 758 689 - -
M65 - 0.5 448 586 586 22 235
L80 1 0.5 552 655 655 23 241
L80 9 Cr 0.5 552 655 655 23 241
L80 13 Cr 0.5 552 655 655 23 241
C90 1 0.5 621 724 689 25.4 255
P110 - 0.6 758 965 862 -





Dimension Tolerances:



Outside Diameter

Pipe Body

D≥114.30mm,+1.0%, -0.5%D
Coupling ±1%D
     Wall Thickness 0, -12.5%t


Single Lengths +6.5%,-3.5%


Carload Lots or Order Quantity

≥18144 kg(40000ib),0,-1.75%
<18144 kg(40000ib),0,-3.5%


1. Materials: H40, J55, K55, N80-1, N80-Q, L80-1,L80-9Cr, L80-13Cr, P110, Q125 etc
2. Executive standards: API 5CT, GB, ISO11960, GOST
3. Thread connection: NU, EU,IJ
4. Length: R1, R2, R3
5. Testing: NDT etc related rules of API 5CT and 5B
Seamless N80 L80 P110 R2 Oil production Casing Pipe 0


Contact Details
Puyang Zhongshi Group Co., Ltd.

Contact Person: sales

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