• API 5CT OCTG NU steel tubing pipes used in oilfield

We are one of the largest OCTG pipes manufacturers in China who can produce EUE and NU tubing pipes according to different requirements of petroleum industry. Our steel tubing pipes have prime quality and competitive price.

Specification

Standard API 5CT
Grade H40, J55, N80-1, N80-Q, R95, L80-1, C90, T95, P110
Outer Diameter 60.3 – 114.3 mm (from 2-3/8’’ to 4-1/2’’ )
Length R1, R2, R3
Type EUE, NU
Section Shape Round
Place of Origin China
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)
tubing details
Lb/Ft OD WT Type of thread
Inch NU EUE In. mm In. mm H40 J55 L80-1      R95 N80 -1  N80Q C90   T95 P110
1.900 2.40 — 1.900 48.26 0.125 3.18 P P — — — —
2.75 2.90 1.900 48.26 0.144 3.68 PNU PNU PNU PNU PNU PNU
3.65 3.73 1.900 48.26 0.200 5.08 PU PU PU PU PU PU
4.42 — 1.900 48.26 0.250 6.35 — — P — P —
5.15 — 1.900 48.26 0.300 7.62 — — P — P —
2.063 3.24 — 2.063 52.40 0.156 3.96 P P P P P —
4.50 — 2.063 52.40 0.225 5.72 P P P P P P
2-3/8 4.00 — 2.375 60.32 0.167 4.24 PU PU PU PU PU —
4.60 4.70 2.375 60.32 0.190 4.83 PNU PNU PNU PNU PNU PNU
5.80 5.95 2.375 60.32 0.254 6.45 — — PNU PNU PNU PNU
6.60 — 2.375 60.32 0.295 7.49 — — P — P —
7.35 7.45 2.375 60.32 0.336 8.53 — — PU — PU —
2-7/8 6.40 6.50 2.875 73.02 0.217 5.51 PNU PNU PNU PNU PNU PNU
7.80 7.90 2.875 73.02 0.276 7.01 — — PNU PNU PNU PNU
8.60 8.70 2.875 73.02 0.308 7.82 — — PNU PNU PNU PNU
9.35 9.45 2.875 73.02 0.340 8.64 — — PU — PU —
10.50 — 2.875 73.02 0.392 9.96 — — P — P —
11.50 — 2.875 73.02 0.440 11.18 — — P — P —
3-1/2 7.70 — 3.500 88.90 0.216 5.49 PN PN PN PN PN —
9.20 9.30 3.500 88.90 0.254 6.45 PNU PNU PNU PNU PNU PNU
10.20 — 3.500 88.90 0.289 7.34 PN PN PN PN PN —
12.70 12.95 3.500 88.90 0.375 9.52 — — PNU PNU PNU PNU
14.30 — 3.500 88.90 0.430 10.92 — — P — P —
15.50 — 3.500 88.90 0.476 12.09 — — P — P —
17.00 — 3.500 88.90 0.530 13.46 — — P — P —
4 9.50 — 4.000 101.60 0.226 5.74 PN PN PN PN PN —
10.70 11.00 4.000 101.60 0.258 6.55 PU PU PU PU PU —
13.20 — 4.000 101.60 0.330 8.38 — — P — P —
16.10 — 4.000 101.60 0.415 10.54 — — P — P —
18.90 — 4.000 101.60 0.500 12.7 — — P — P —
22.20 — 4.000 101.60 0.610 15.49 — — P — P —
4-1/2 12.60 18.97 4.500 114.30 0.271 6.88 PNU PNU PNU PNU PNU PNU
15.20 — 4.500 114.30 0.337 8.56 — — P — P —
17.00 — 4.500 114.30 0.380 9.65 — — P — P —
18.90 — 4.500 114.30 0.430 10.92 — — P — P —
21.50 — 4.500 114.30 0.500 12.7 — — P — P —
23.70 — 4.500 114.30 0.560 14.22 — — P — P —
26.10 — 4.500 114.30 0.630 16 — — P — P —
Note：P=plain ends(PE);    N= Non-upsetting end with thread and coupling;   U=External upsetting end with thread and coupling

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

 0.5/0.5 552~758/552~758 689/689 — —

R95

 0.5 655 724 —

—

L80

 0.5 552 655 23.0 241

L80-1/L80-9Cr

 0.5 552 655 23.0

241

L80-13Cr

 0.5 552 655 23.0

241

C90

 0.5 621 689 25.4 255

T95

 0.5 655 724 25.4 255
C110 0.7 758 793 30.0

286

P110

 0.6 758 862 —

—

Q125

 0.65 862 931 b

—

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