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Tubing
Tubing
- Type:Tubing
- CAS No:
- Qty in 20' FCL:
- Min. Order:
- Packaging:
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-
Size
Weight(lb/ft)
Wall thickness
Inner diameter
Outer diameter
Steel grade
NUE
EUE
(mm)
(mm)
(mm)
2 3/8
4.00
4.24
51.84
60.32
J55
K55
N80
L80 etc
4.60
4.70
4.83
50.67
5.80
5.95
6.45
47.42
6.60
7.49
45.34
7.35
7.45
8.35
43.26
2 7/8
6.40
6.50
5.51
62.00
73.02
7.80
7.90
7.01
59.00
8.60
8.70
7.82
57.38
9.35
9.45
8.64
55.75
10.50
9.96
53.11
11.50
11.18
50.67
J553 1/2
7.70
5.49
77.93
88.9
9.20
6.45
76.00
10.20
7.34
74.22
12.70
9.53
69.85
14.30
10.92
67.06
15.50
12.09
64.72
17.00
13.46
61.98
Group
Steel grade
Model
Yield strength(N/mm2)
Tensile
strength(N/mm2)
Hardness (max)
min
,max
HRC
HBW/HBS
1
H40
276
552
414
1
H40
379
552
517
1
K55
379
552
655
1
N80
552
758
689
2
L80
1
552
655
655
23.0
241
2
L80
9Cr
552
655
655
23.0
241
2
L80
13Cr
552
655
655
23.0
241
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Mechanical preformance, test method & inspecting method, thread processing and inspecting
completely conform to API Spec 5CT/API std 5B and china petroleum industry standard SY/T6194.
We can produce EUE and NUE tubing, including 2 -3/8″, 2 -7/8″ and 3 -1/2″ etc. We can produce
various glass reinforced plastic inside surface tubing and inside plating anti-corrosive tubing according
to the consumer' s requirements.
* A four funcition magnet leak inspecting machine produced by ICO company of U.S.A. is usd in nondestructive inspection. It can
inspect steel grade, longitudinal and transverse defects and wall thickness.
* After the tubing ends are thickened, the tubing is heat-treated for full length. The procedure of heat-treatment is controlled by a
computer automatically. Fluorescent magnetic powder test is carried after heat-treatment.
* Numerically controlled pipe lathe are used in thread processing.
* For every item of thread inspecting, a complete set of inspecting machines produced by Arem Co. of USA. is used.
* Hydrostatic pressure test is controlled automatically. Tubings are 100% pressure-tested and the results are recorded automalically.
* For ensuring the each capacity of the tubings and avoiding thread gluing, the thread technical parameter are above the API standard.