Overview of  API 5CT H40/ J55/ K55/ L80/ N80/ C90/C95/ T95/ P110/ Q125 OCTG steel Seamless Oil casing Pipe

 API 5CT H40/ J55/ K55/ L80/ N80/ C90/C95/ T95/ P110/ Q125 OCTG steel Seamless Oil casing Pipe is a type of Pipe that is commonly used in the Oil and gas industry. It is designed to provide a protective barrier for the wellbore, ensuring the safe and efficient extraction of Oil and gas from the ground. In this article, we will provide an overview of the different grades of  API 5CT OCTG steel seamless Oil casing Pipe and their applications.
The  API 5CT H40 grade is a relatively low-strength steel casing Pipe that is primarily used in shallow wells. It has a minimum yield strength of 40,000 psi and is suitable for environments with low pressure and low to moderate temperature. The J55 grade, on the other hand, has a higher yield strength of 55,000 psi and is commonly used in wells with moderate pressure and temperature. Moving on to the K55 grade, it is similar to the J55 grade in terms of yield strength but has a higher tensile strength. This makes it suitable for wells with higher pressure and temperature. The L80 grade, on the other hand, has a higher yield strength of 80,000 psi and is commonly used in wells with high pressure and temperature. The N80 grade is a higher-strength casing Pipe that is suitable for wells with high pressure and temperature. It has a minimum yield strength of 80,000 psi and is commonly used in deep wells. The C90 grade, on the other hand, has a higher yield strength of 90,000 psi and is suitable for wells with high pressure and temperature. Moving on to the C95 grade, it has a higher yield strength of 95,000 psi and is commonly used in wells with high pressure and temperature. The T95 grade, on the other hand, has a higher yield strength of 95,000 psi and is suitable for wells with high pressure and temperature. Oil Tube
LabelsOutside diameter
(d/mm)
T&C
(kg/m)
Wall thickness  
(t/mm)
Type of end-finish
     
12    J55/ K55M65 L80/ R95 N80-1/Q C90/ T95 P110 Q125
4-1/29.50114.3014.145.21PSPS
 10.50114.3015.635.69PSBPSB
 11.60114.3017.266.35PSLBPLBPLBPLBPLBPLB
 13.50114.3020.097.37PLBPLBPLBPLBPLB
 15.10114.3022.478.56PLBPLB
511.50127.0017.115.59PSPS
 13.00127.0019.356.43PSLBPSLB
 15.00127.0022.327.52PSLBPLBSLBPLBPLBPLB 
 18.00127.0026.799.19PLBSLBPLBPLBPLBPLB
 21.40127.0031.8511.10PLBPLBPLBPLBPLBPLB
 23.20127.0034.5312.14PLBPLBPLBPLBPLB
 24.10127.0035.8712.70PLBPLBPLBPLBPLB
5-1/214.00139.7020.836.20PSPS
 15.50139.7023.076.98PSLBPSLB
 17.00139.7025.307.72PSLBPLBPLBPLBPLBPLB
 20.00139.7029.769.17PLBPLBPLBPLBPLB
 23.00139.7034.2310.54PLBPLBPLBPLBPLBPLB
 26.80139.7039.8812.70P
 29.70139.7044.2014.27P
 32.60139.7048.5215.88P
 35.30139.7052.5317.45P
 38.00139.7056.5519.05P
 40.50139.7060.2720.62P
 43.10139.7064.1422.22P
6-5/820.00168.2829.767.32PSLBPSLB
 24.00168.2835.728.94PSLBPLBPLBPLBPLBPLB
 28.00168.2841.6710.59PLBPLBPLBPLBPLB
 32.00168.2847.6212.06PLBPLBPLBPLBPLB
717.00177.8025.305.87
 20.00177.8029.766.91PSPS
 23.00177.8034.238.05PSLBPLBPLBPLBPLB
 26.00177.8038.699.19PLBPLBPLBPLBPLB
 29.00177.8043.1610.36PLBPLBPLBPLBPLB
 32.00177.8047.6211.51PLBPLBPLBPLBPLB
 35.00177.8052.0912.65PLBPLBPLBPLBPLB
 38.00177.8056.5513.72PLBPLBPLBPLBPLB
 42.70177.8063.5515.88P
 46.40177.8069.0517.45P
 50.10177.8074.5619.05P
 53.60177.8079.7720.62P
 57.10177.8084.9822.22P
7-5/824.00193.6835.727.62 
 26.40193.6839.298.33PSLBPSLBPLBPLBPLB
 29.70193.6844.209.52PLBPLBPLBPLBPLB
 33.70193.6850.1510.92PLBPLBPLBPLBPLB
 39.00193.6858.0412.70PLBPLBPLBPLBPLB
 42.80193.6863.6914.27PLBPLBPLBPLBPLB
 45.30193.6867.4215.11PLBPLBPLBPLBPLB
 47.10193.6870.0915.88PLBPLBPLBPLBPLB
 51.20193.6876.2017.45P
 55.30193.6882.3019.05P
7-3/446.10196.8568.6115.11PPPPP
8-5/824.00219.0835.726.71PSPS
 28.00219.0841.677.72 PS
 32.00219.0847.628.94PSLBPSLB
 36.00219.0853.5810.16PSLBPSLBPLBPLBPLBPLB
 40.00219.0859.5311.43PLBPLBPLBPLBPLB
 44.00219.0865.4812.70PLBPLBPLBPLB
 49.00219.0872.9214.15PLBPLBPLBPLBPLB
9-5/832.30244.4848.077.92
 36.00244.4853.588.94PSLBPSLB
 40.00244.4859.5310.03PSLBPSLBPLBPLBPLB
 43.50244.4864.7411.05PLBPLBPLBPLBPLB
 47.00244.4869.9511.99PLBPLBPLBPLBPLBPLB
 53.50244.4879.6213.84PLBPLBPLBPLBPLB
 58.40244.4886.9115.11PLBPLBPLBPLBPLB
 59.40244.4888.4015.47P
 64.90244.4896.5817.07P
 70.30244.48104.6218.64P
 75.60244.48112.5120.24P
10-3/432.75273.0548.747.09
 40.50273.0560.278.89PSBPSB
 45.50273.0567.7110.16PSBPSB
 51.00273.0575.9011.43PSBPSBPSBPSBPSBPSB
 55.50273.0582.6012.57PSBPSBPSBPSBPSB
 60.70273.0590.3313.84PSBPSBPSB
 65.70273.0597.7715.11PSBPSBPSB
 73.20273.05108.9417.07P
 79.20273.05117.8718.64P
 85.30273.05126.9420.24P
11-3/442.00298.4562.508.46
 47.00298.4569.959.53PSBPSB
 54.00298.4580.3611.05PSBPSB
 60.00298.4589.2912.42PSBPSBPSBPSBPSBPSBPSB
 65.00298.4596.7313.56PPPPP
 71.00298.45105.6614.78PPPPP
13-3/848.00339.7271.438.38
 54.50339.7281.119.65PSBPSB
 61.00339.7290.7810.92PSBPSB
 68.00339.72101.2012.19PSBPSBPSBPSBPSBPSB
 72.00339.72107.1513.06PSBPSBPSBPSBPSB
1665.00406.4096.739.53
 75.00406.40111.6211.13PSBPSB
 84.00406.40125.0112.57PSBPSB
 109.00406.40162.2116.66PPPPP
18-5/887.50473.08130.2211.05PSBPSB
2094.00508.00139.8911.13PSLBPSLB
 106.50508.00158.4912.70PSLBPSLB
 133.00508.00197.9316.13PSLB
The P110 grade is a higher-strength casing Pipe that is suitable for wells with high pressure and temperature. It has a minimum yield strength of 110,000 psi and is commonly used in deep wells. The Q125 grade, on the other hand, has a higher yield strength of 125,000 psi and is suitable for wells with high pressure and temperature. In conclusion,  API 5CT H40/ J55/ K55/ L80/ N80/ C90/C95/ T95/ P110

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