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China Wholesale Seamless Steel Tube Factories - Oil Well Casing Tube Manufacturer – Zhongshun

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  • China Wholesale Seamless Steel Tube Factories - Oil Well Casing Tube Manufacturer – Zhongshun
  • China Wholesale Seamless Steel Tube Factories - Oil Well Casing Tube Manufacturer – Zhongshun
  • China Wholesale Seamless Steel Tube Factories - Oil Well Casing Tube Manufacturer – Zhongshun

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Good quality comes initial; company is foremost; small business is cooperation" is our business philosophy which is frequently observed and pursued by our business for Tee Fitting Pipe, Carbon Steel Reducer Flange, Square Iron Tubing, All prices depend upon the quantity of your order; the more you order, the more economical the price is. We also offer good OEM service to many famous brands.
China Wholesale Seamless Steel Tube Factories - Oil Well Casing Tube Manufacturer – Zhongshun Detail:

Standard

Grade

Tensile Strength（MPa）

Yield Strength（MPa）

Elongation（%）

Hardness

API SPEC 5CT

J55

≥517

379～552

0.5%

≤241HB

K55

≥655

379~552

0.5%

N80

≥689

552~758

0.5%

L80（13Cr）

≥655

552~655

0.5%

P110

≥862

758~965

0.6%

Chemical Composition of oil well casing:100% bullet tests include ultrasound inspection of full length wall thickness, full length drift diameter, water pressure test, mechanical test (yield, tensile, hardness) etc.
100% final product tests include connection inspection; weld quality inspection and insulation performance tests.

Standard

Grade

Composition（%）

C

Si

Mn

P

S

Cr

Ni

Cu

Mo

V

AIs

API SPEC 5CT
 

J55K55

0.34～0.39

0.20～
0.35

1.25～1.50

≤0.020

≤0.015

≤0.15

≤0.20

≤0.20

 

 

≤0.020

(37Mn5)

N80

0.34～0.38

0.20～
0.35

1.45～1.70

≤0.020

≤0.015

≤0.15

 

 

 

0.11
～0.16

≤0.020

(36 Mn2V)

L80(13Cr)

0.15～0.22

≤1.00

0.25～1.00

≤0.020

≤0.010

12.0～
14.0

≤0.20

≤0.20

 

 

≤0.020

P110

0.26～0.35

0.17～
0.37

0.40～0.70

≤0.020

≤0.010

0.80～
1.10

≤0.20

≤0.20

0.15
～0.25

≤0.08

≤0.020

(30CrMo)
Labels Outside diameter T&C Wall thickness   Type of end-finish
(d/mm) (kg/m) (t/mm)
1 2       J55/K55 M65 L80/R95 N80-1/Q C90/T95 P110 Q125
2004/1/2 9.5 114.3 14.14 5.21 PS PS - - - - -
10.5 114.3 15.63 5.69 PSB PSB - - - - -
11.6 114.3 17.26 6.35 PSLB PLB PLB PLB PLB PLB -
13.5 114.3 20.09 7.37 - PLB PLB PLB PLB PLB -
15.1 114.3 22.47 8.56 - - - - - PLB PLB
5 11.5 127 17.11 5.59 PS PS - - - - -
13 127 19.35 6.43 PSLB PSLB - - - - -
15 127 22.32 7.52 PSLB PLB SLB PLB PLB PLB  
18 127 26.79 9.19 - PLB SLB PLB PLB PLB PLB
21.4 127 31.85 11.1 - PLB PLB PLB PLB PLB PLB
23.2 127 34.53 12.14 - - PLB PLB PLB PLB PLB
24.1 127 35.87 12.7 - - PLB PLB PLB PLB PLB
2005/1/2 14 139.7 20.83 6.2 PS PS - - - - -
15.5 139.7 23.07 6.98 PSLB PSLB - - - - -
17 139.7 25.3 7.72 PSLB PLB PLB PLB PLB PLB -
20 139.7 29.76 9.17 - PLB PLB PLB PLB PLB -
23 139.7 34.23 10.54 - PLB PLB PLB PLB PLB PLB
26.8 139.7 39.88 12.7 - - - - P - -
29.7 139.7 44.2 14.27 - - - - P - -
32.6 139.7 48.52 15.88 - - - - P - -
35.3 139.7 52.53 17.45 - - - - P - -
38 139.7 56.55 19.05 - - - - P - -
40.5 139.7 60.27 20.62 - - - - P - -
43.1 139.7 64.14 22.22 - - - - P - -
2006/5/8 20 168.28 29.76 7.32 PSLB PSLB - - - - -
24 168.28 35.72 8.94 PSLB PLB PLB PLB PLB PLB -
28 168.28 41.67 10.59 - PLB PLB PLB PLB PLB -
32 168.28 47.62 12.06 - - PLB PLB PLB PLB PLB
7 17 177.8 25.3 5.87 - - - - - - -
20 177.8 29.76 6.91 PS PS - - - - -
23 177.8 34.23 8.05 PSLB PLB PLB PLB PLB - -
26 177.8 38.69 9.19 - PLB PLB PLB PLB PLB -
29 177.8 43.16 10.36 - PLB PLB PLB PLB PLB -
32 177.8 47.62 11.51 - PLB PLB PLB PLB PLB -
35 177.8 52.09 12.65 - - PLB PLB PLB PLB PLB
38 177.8 56.55 13.72 - - PLB PLB PLB PLB PLB
42.7 177.8 63.55 15.88 - - - - P - -
46.4 177.8 69.05 17.45 - - - - P - -
50.1 177.8 74.56 19.05 - - - - P - -
53.6 177.8 79.77 20.62 - - - - P - -
57.1 177.8 84.98 22.22 - - - - P - -
2007/5/8 24 193.68 35.72 7.62 - - - -   - -
26.4 193.68 39.29 8.33 PSLB PSLB PLB PLB PLB - -
29.7 193.68 44.2 9.52 - PLB PLB PLB PLB PLB -
33.7 193.68 50.15 10.92 - PLB PLB PLB PLB PLB -
39 193.68 58.04 12.7 - - PLB PLB PLB PLB PLB
42.8 193.68 63.69 14.27 - - PLB PLB PLB PLB PLB
45.3 193.68 67.42 15.11 - - PLB PLB PLB PLB PLB
47.1 193.68 70.09 15.88 - - PLB PLB PLB PLB PLB
51.2 193.68 76.2 17.45 - - - - P - -
55.3 193.68 82.3 19.05 - - - - P - -
2007/3/4 46.1 196.85 68.61 15.11 - - P P P P P
2008/5/8 24 219.08 35.72 6.71 PS PS - - - - -
28 219.08 41.67 7.72   PS - - - - -
32 219.08 47.62 8.94 PSLB PSLB - - - - -
36 219.08 53.58 10.16 PSLB PSLB PLB PLB PLB PLB -
40 219.08 59.53 11.43 - PLB PLB PLB PLB PLB -
44 219.08 65.48 12.7 - - PLB PLB PLB PLB -
49 219.08 72.92 14.15 - - PLB PLB PLB PLB PLB
2009/5/8 32.3 244.48 48.07 7.92 - - - - - - -
36 244.48 53.58 8.94 PSLB PSLB - - - - -
40 244.48 59.53 10.03 PSLB PSLB PLB PLB PLB - -
43.5 244.48 64.74 11.05 - PLB PLB PLB PLB PLB -
47 244.48 69.95 11.99 - PLB PLB PLB PLB PLB PLB
53.5 244.48 79.62 13.84 - - PLB PLB PLB PLB PLB
58.4 244.48 86.91 15.11 - - PLB PLB PLB PLB PLB
59.4 244.48 88.4 15.47 - - - - P - -
64.9 244.48 96.58 17.07 - - - - P - -
70.3 244.48 104.62 18.64 - - - - P - -
75.6 244.48 112.51 20.24 - - - - P - -
2010/3/4 32.75 273.05 48.74 7.09 - - - - - - -
40.5 273.05 60.27 8.89 PSB PSB - - - - -
45.5 273.05 67.71 10.16 PSB PSB - - - - -
51 273.05 75.9 11.43 PSB PSB PSB PSB PSB PSB -
55.5 273.05 82.6 12.57 - PSB PSB PSB PSB PSB -
60.7 273.05 90.33 13.84 - - - - PSB PSB PSB
65.7 273.05 97.77 15.11 - - - - PSB PSB PSB
73.2 273.05 108.94 17.07 - - - - P - -
79.2 273.05 117.87 18.64 - - - - P - -
85.3 273.05 126.94 20.24 - - - - P - -
2011/3/4 42 298.45 62.5 8.46 - - - - - - -
47 298.45 69.95 9.53 PSB PSB - - - - -
54 298.45 80.36 11.05 PSB PSB - - - - -
60 298.45 89.29 12.42 PSB PSB PSB PSB PSB PSB PSB
65 298.45 96.73 13.56 - - P P P P P
71 298.45 105.66 14.78 - - P P P P P
2013/3/8 48 339.72 71.43 8.38 - - - - - - -
54.5 339.72 81.11 9.65 PSB PSB - - - - -
61 339.72 90.78 10.92 PSB PSB - - - - -
68 339.72 101.2 12.19 PSB PSB PSB PSB PSB PSB -
72 339.72 107.15 13.06 - - PSB PSB PSB PSB PSB
16 65 406.4 96.73 9.53 - - - - - - -
75 406.4 111.62 11.13 PSB PSB - - - - -
84 406.4 125.01 12.57 PSB PSB - - - - -
109 406.4 162.21 16.66 P - P P - P P
2018/5/8 87.5 473.08 130.22 11.05 PSB PSB - - - - -
20 94 508 139.89 11.13 PSLB PSLB - - - - -
106.5 508 158.49 12.7 PSLB PSLB - - - - -
133 508 197.93 16.13 PSLB - - - - - -

* P – plain end, S – short round thread, B – buttress, L – long round thread

Name

 J55 K55 N80-1 N80-Q L80-1 P110
Casing a bright green band two bright green bands a bright red band a bright red band + a green band a red band + a brown band a bright white band
Coupling entire green coupling + a white band entire green coupling entire red coupling entire red coupling + a green band entire red coupling + a brown band entire white coupling

Casing-Tube
casing-pipe
casing-tubing

Product detail pictures:

China Wholesale Seamless Steel Tube Factories - Oil Well Casing Tube Manufacturer – Zhongshun detail pictures

China Wholesale Seamless Steel Tube Factories - Oil Well Casing Tube Manufacturer – Zhongshun detail pictures

China Wholesale Seamless Steel Tube Factories - Oil Well Casing Tube Manufacturer – Zhongshun detail pictures

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Our eternal pursuits are the attitude of "regard the market, regard the custom, regard the science" as well as the theory of "quality the basic, believe in the 1st and management the advanced" for China Wholesale Seamless Steel Tube Factories - Oil Well Casing Tube Manufacturer – Zhongshun , The product will supply to all over the world, such as: Manila, British, Greece, Our company always concentrate on the development of the international market. We have a lot of customers in Russia , European countries, the USA, the Middle East countries and Africa countries. We always follow that quality is foundation while service is guarantee to meet all customers.
    • The company has a good reputation in this industry, and finally it tured out that choose them is a good choice.
    5 Stars By Eudora from Johannesburg - 2017.12.09 14:01
    This manufacturer can keep improving and perfecting products and service, it is in line with the rules of market competition, a competitive company.
    5 Stars By Dinah from Belize - 2017.11.11 11:41

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