• Api 5ct grade j55 k55 n80 l80 c90 p110 raw seamless carbon steel pipe for oilfield steel casing

Api 5ct grade j55 k55 n80 l80 c90 p110 raw seamless carbon steel pipes are used to produce api 5ct steel casing pipes.If you need raw seamless steel pipes without couplings and threads to produce 4 1/2’’ casing,5’’ casing,5 1/2’’ casing,6 5/8’’ casing,7’’ casing,7 5/8’’ casing,7 3/4’’ casing,8 5/8’’ casing,9 5/8’’ casing,10 3/4’’ casing,11 3/4’’ casing,13 3/8’’ casing and 16’’ casing with common types of threads such as BTC,STC,LC and special types of threads like BT-1,BT-2 and BT-3,just contact us.

Specification

Standard API 5CT latest edition
Steel Grade/Material H40/J55/K55/L80/N80-1/N80Q/L80-13Cr/R95/C90/T95/C110/P110/Q125
Outer Diameter(OD) 4 1/2”-20”(114.3mm-508mm)
Wall Thickness(WT) 9.5LB/ft-133LB/ft(5.21mm-16.13mm)
Length R1/R2/R3
Packing  Bundling
Type of thread None threads
Section Shape Round
Technique Seamless hot rolled
Application Oil and Gas field
Place of Origin China
MOQ 1 ton
Transportation 1.Sea port:Tianjin Xingang port,Qingdao port,Shanghai Luojing port
→America,Europe,Africa,Middle East,India, Pakistan,Japan,Korea,
Australia…(shipping)

2.Land port:Alataw pass port(Пограничный пункт “Алашанькоу”)
Khorgos port(Пограничный пункт “Хоргос”)
→East Asia, Uzbekistan,Kazakhstan,Kyrgyzstan…(Train)
Erlianhot port→Mongolia(Train and Truck)
Manchuria port→Russia(Train and Truck)
API 5CT raw seamless carbon steel pipe details
SIZE Theoretical weight OD Theoretical weight WT
Inch Lb/Ft mm kg/m mm
4 1/2 9.5 114.3 14.38 5.21
4 1/2 10.5 114.3 15.73 5.69
4 1/2 11.6 114.3 17.38 6.35
4 1/2 13.5 114.3 19.87 7.37
4 1/2 15.1 114.3 22.69 8.56
5 11.5 127 17.19 5.59
5 13 127 19.69 6.43
5 15 127 22.69 7.52
5 18 127 27.19 9.19
5 21.4 127 32.13 11.1
5 23.2 127 34.76 12.14
5 24.1 127 36.15 12.7
5 1/2 14 139.7 20.91 6.2
5 1/2 15.5 139.7 23.48 6.98
5 1/2 17 139.7 25.72 7.72
5 1/2 20 139.7 30.05 9.17
5 1/2 23 139.7 34.05 10.54
5 1/2 26.8 139.7 40.15 12.7
5 1/2 29.7 139.7 44.47 14.27
5 1/2 32.6 139.7 48.74 15.88
5 1/2 35.3 139.7 52.8 17.45
5 1/2 38 139.7 56.82 19.05
5 1/2 40.5 139.7 60.64 20.62
5 1/2 43.1 139.7 64.41 22.22
6 5/8 20 168.28 29.76 7.32
6 5/8 24 168.28 35.72 8.94
6 5/8 28 168.28 41.67 10.59
6 5/8 32 168.28 47.62 12.06
7 17 177.8 25.6 5.87
7 20 177.8 29.91 6.91
7 23 177.8 34.67 8.05
7 26 177.8 39.14 9.19
7 29 177.8 43.6 10.36
7 32 177.8 47.92 11.51
7 35 177.8 52.09 12.65
7 38 177.8 56.1 13.72
7 42.7 177.8 63.84 15.88
7 46.4 177.8 69.35 17.45
7 50.1 177.8 74.85 19.05
7 53.6 177.8 80.21 20.62
7 57.1 177.8 85.42 22.22
7 5/8 24 193.68 35.72 7.62
7 5/8 26.4 193.68 39.29 8.33
7 5/8 29.7 193.68 44.2 9.52
7 5/8 33.7 193.68 50.15 10.92
7 5/8 39 193.68 58.04 12.7
7 5/8 42.8 193.68 63.69 14.27
7 5/8 45.3 193.68 67.41 15.11
7 5/8 47.1 193.68 70.09 15.88
7 5/8 51.2 193.68 76.19 17.45
7 5/8 55.3 193.68 82.3 19.05
7 3/4 46.1 196.85 68.6 15.11
8 5/8 24 219.08 35.72 6.71
8 5/8 28 219.08 41.67 7.72
8 5/8 32 219.08 47.62 8.94
8 5/8 36 219.08 53.57 10.16
8 5/8 40 219.08 59.53 11.43
8 5/8 44 219.08 65.48 12.7
8 5/8 49 219.08 72.92 14.15
9 5/8 32 244.48 48.07 7.92
9 5/8 36 244.48 53.57 8.94
9 5/8 40 244.48 59.53 10.03
9 5/8 43.5 244.48 64.73 11.05
9 5/8 47 244.48 69.94 11.99
9 5/8 53.5 244.48 79.62 13.84
9 5/8 58.4 244.48 86.91 15.11
9 5/8 59.4 244.48 88.4 15.47
9 5/8 64.9 244.48 96.58 17.07
9 5/8 70.3 244.48 104.62 18.64
9 5/8 75.6 244.48 112.5 20.24
10 3/4 32.75 273.05 48.74 7.09
10 3/4 40.5 273.05 60.27 8.89
10 3/4 45.5 273.05 67.71 10.16
10 3/4 51 273.05 75.9 11.43
10 3/4 55.5 273.05 82.59 12.57
10 3/4 60.7 273.05 90.33 13.84
10 3/4 65.7 273.05 97.77 15.11
10 3/4 73.2 273.05 108.93 17.07
10 3/4 79.2 273.05 117.86 18.64
10 3/4 85.3 273.05 126.94 20.24
11 3/4 42 298.45 62.5 8.46
11 3/4 47 298.45 69.94 9.53
11 3/4 54 298.45 80.36 11.05
11 3/4 60 298.45 89.29 12.42
11 3/4 65 298.45 96.73 13.56
11 3/4 71 298.45 105.66 14.78
13 3/8 48 339.72 71.43 8.38
13 3/8 54.5 339.72 81.1 9.65
13 3/8 61 339.72 90.78 10.92
13 3/8 68 339.72 101.19 12.19
13 3/8 72 339.72 107.15 13.06
16 65 406.4 96.73 9.53
16 75 406.4 111.61 11.13
16 84 406.4 125.01 12.57
16 109 406.4 162.21 16.66
18 5/8 87.5 473.08 130.21 11.05
20 94 508 139.89 11.13
20 106.5 508 158.49 12.7
20 133 508 197.93 16.13
Chemical Composition(%)
Grade C Mn Mo Cr Ni Cu P S Si
H40 ≤0.03 ≤0.03 —
J55/K55 ≤0.03 ≤0.03 —
N80-1/N80Q ≤0.03 ≤0.03 —
R95 ≤0.45ᶜ ≤1.9 ≤0.03 ≤0.03 —
L80 ≤0.43ᵃ ≤1.9 ≤0.03 ≤0.03 —
L80-1 ≤0.15 0.30~0.60 0.90~1.10 8.00~10.0 — — ≤0.03 ≤0.03 ≤0.45
L80-13Cr 0.15~0.22 0.25~1.00 12.0~14.0 ≤0.25 ≤0.35 ≤0.03 ≤0.03 ≤0.45
C90 ≤0.35 ≤1.20 0.25ᵇ~0.85 ≤1.50 ≤0.5 ≤0.25 ≤0.02 ≤0.01 ≤1
T95 ≤0.35 ≤1.20 0.25ᵇ~0.85 0.40~1.50 ≤0.5 ≤0.25 ≤0.02 ≤0.01 ≤1
C110 ≤0.35 ≤1.20 0.25~1.00 0.40~0.15 ≤0.99 — ≤0.02 ≤0.01 —
P110 ≤0.99 — ≤0.02 ≤0.01 —
Q125 ≤0.35 1.35 ≤0.85 ≤1.50 ≤0.99 — ≤0.02 ≤0.005 —
Mechanical properties
Grade Total elongation under load（%） Yield strength（Mpa） Tensile strength（Mpa） Hardness （HRC） Hardness （HBW）
H40 0.5 276~552 414 — —
J55 0.5 379~552 517 — —
K55 0.5 379~552 655 — —
N80-1/N80Q 0.5/0.5 552~758 689 — —
R95 0.5 655 724 — —
L80 0.5 552 655 23 241
L80-1/L80-9Cr 0.5 552 655 23 241
L80-13Cr 0.5 552 655 23 241
C90 0.5 621 689 25.4 255
T95 0.5 655 724 25.4 255
C110 0.7 758 793 30 286
P110 0.6 758 862 — —
Q125 0.65 862 931 — —

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