1 / 4 '' OD x 0.065 '' WT nickel alloy tubing hydraulic control line made from Incoloy 825
The nickel alloy tubing products for the oil & gas sector have been successfully applied in some of the most aggressive subsea and downhole conditions and we have a long proven track record of supplying products that meet the strict quality requirements of the oil and gas sector.
Meilong Tube offers control line tubing in a wide range of corrosion resistant stainless steels, nickel alloys. We have extensive experience in product supply and innovation in this sector, from the technological advances required for subsea developments in the 1999 to the deepwater challenges of today
Typical Size of Nickel Alloy Tubing Control Line
Outside diameter of nickel alloy tubing control lines is mainly 1/4’’ (6.35mm).
Wall thicknesses: 0.035’’ (0.89mm), 0.049’’ (1.24mm), 0.065’’ (1.65mm)
Control line tubing is available in lengths from 400 feet (122 meters) to 32,808 feet (10,000 meters). No orbitally butt welds.
Other specifications (1/8’’ to 3/4’’) are available on request.
| Imperial size |
Metric size |
|
OD
inch
|
WT
inch
|
OD
mm
|
WT
mm
|
| 1/8 (0.125) |
0.028 |
3.18 |
0.71 |
| 0.035 |
3.18 |
0.89 |
| 3/16 (0.188) |
0.028 |
4.76 |
0.71 |
| 0.035 |
4.76 |
0.89 |
| 0.049 |
4.76 |
1.24 |
| 1/4 (0.250) |
0.035 |
6.35 |
0.89 |
| 0.049 |
6.35 |
1.24 |
| 0.065 |
6.35 |
1.65 |
| 0.083 |
6.35 |
2.11 |
| 3/8 (0.375) |
0.035 |
9.53 |
0.89 |
| 0.049 |
9.53 |
1.24 |
| 0.065 |
9.53 |
1.65 |
| 0.083 |
9.53 |
2.11 |
| 1/2 (0.500) |
0.035 |
12.7 |
0.89 |
| 0.049 |
12.7 |
1.24 |
| 0.065 |
12.7 |
1.65 |
| 0.083 |
12.7 |
2.11 |
Features of Nickel Alloy Tubing Control Line
Each one tubing coil is a completely continuous length without orbital welds.
Each one tubing coil is hydrostatic tested with a targeted pressure.
The test can be witnessed on site by the third party inspectors (SGS, BV, DNV).
Other tests are eddy current test, chemicals, flattening, flaring, tensile, yield, elongation, hardness for the material quality.
Testing Abilities for Nickel Alloy Tubing Control Line
|
Chemical
Corrosion
Dimensional
Eddy current
Elongation
|
Flare
Flatten
Grain size
Hardness
Hydrostatic
|
Metallurgical
Positive material identification (PMI)
Surface roughness
Tensile
Yield
|
Process and Packing for Nickel Alloy Tubing Control Line
Seamless: pierced, redrawn, annealed (multi-pass circulation process)
Welded: longitudinally welded, redrawn, annealed (multi-pass circulation process)
Packing: Tubing is level wound coiled on the metal / wooden drums or spools.
All drums or spools are packed in wooden crates for easy logistic operation.
Alloy Materials
| Austenitic: |
316L |
ASTM A-269 |
| Duplex: |
S31803/S32205
S32750
|
ASTM A-789
ASTM A-789
|
| Nickel alloy: |
N08825
N06625
|
ASTM B-704; ASTM B-423
ASTM B-704; ASTM B-444
|
Alloy Feature
Incoloy alloy 825 is a nickel-iron-chromium alloy with additions of molybdenum and copper. This nickel steel alloy’s chemical composition is designed to provide exceptional resistance to many corrosive environments. It is similar to alloy 800 but has improved resistance to aqueous corrosion. It has excellent resistance to both reducing and oxidizing acids, to stress-corrosion cracking, and to localized attack such as pitting and crevice corrosion. Alloy 825 is especially resistant to sulfuric and phosphoric acids. This nickel steel alloy is used for chemical processing, pollution-control equipment, oil and gas well piping, nuclear fuel reprocessing, acid production, and pickling equipment.
Chemical Composition
| Nickel |
Chromium |
Iron |
Molybdenum |
Carbon |
Manganese |
Silicon |
Sulfur |
Aluminum |
Titanium |
Copper |
| % |
% |
% |
% |
% |
% |
% |
% |
% |
% |
% |
| |
|
min. |
|
max. |
max. |
max. |
max. |
max. |
|
|
| 38.0-46.0 |
19.5-23.5 |
22.0 |
2.5-3.5 |
0.05 |
1.0 |
0.5 |
0.03 |
0.2 |
0.6-1.2 |
1.5-3.0 |
Dimensional Tolerance
|
ASTM B704 / ASME SB704, Incoloy 825, UNS N08825
ASTM B751 / ASME SB751
|
| Size OD |
Tolerance OD |
Tolerance WT |
|
1/8’’≤OD<5/8’’ (3.18≤OD<15.88 mm)
5/8≤OD≤1’’ (15.88≤OD≤25.4 mm)
|
±0.004’’ (±0.10 mm)
±0.0075’’ (±0.19 mm)
|
±12.5%
±12.5%
|
Meilong Standard
| Size OD |
Tolerance OD |
Tolerance WT |
|
1/8’’≤OD<5/8’’ (3.18≤OD<15.88 mm)
5/8≤OD≤1’’ (15.88≤OD≤25.4 mm)
|
±0.004’’ (±0.10 mm)
±0.004’’ (±0.10 mm)
|
±10%
±8%
|
Properties of Nickel Alloy Tubing Control Line
Seam-welded & floating internal plug redrawn tubing. Supplied in the annealed condition
Continuous length without orbital joint welds
| Alloy |
UNS |
O.D. |
W.T. |
Working Pressure |
Burst Pressure |
Collapse Pressure |
Test Pressure |
| inch |
inch |
inch |
psi |
psi |
psi |
psi |
| Incoloy 825 |
N08825 |
1/8 |
0.125 |
0.028 |
12,389 |
45,914 |
11,266 |
14,500 |
| Incoloy 825 |
N08825 |
1/8 |
0.125 |
0.035 |
15,486 |
57,392 |
14,083 |
17,400 |
| Incoloy 825 |
N08825 |
1/4 |
0.250 |
0.035 |
7,281 |
26,992 |
8,427 |
8,700 |
| Incoloy 825 |
N08825 |
1/4 |
0.250 |
0.049 |
10,518 |
38,957 |
10,979 |
11,600 |
| Incoloy 825 |
N08825 |
1/4 |
0.250 |
0.065 |
14,335 |
53,127 |
13,445 |
16,675 |
| Incoloy 825 |
N08825 |
3/8 |
0.375 |
0.035 |
4,683 |
17,347 |
5,918 |
5,075 |
| Incoloy 825 |
N08825 |
3/8 |
0.375 |
0.049 |
6,720 |
24,903 |
7,919 |
7,250 |
| Incoloy 825 |
N08825 |
3/8 |
0.375 |
0.065 |
9,214 |
34,142 |
10,022 |
10,150 |
| Incoloy 825 |
N08825 |
3/8 |
0.375 |
0.083 |
12,018 |
44,526 |
12,174 |
13,775 |
| Incoloy 825 |
N08825 |
1/2 |
0.500 |
0.049 |
4,912 |
18,173 |
6,164 |
5,800 |
| Incoloy 825 |
N08825 |
1/2 |
0.500 |
0.065 |
6,701 |
24,831 |
7,905 |
7,250 |
| Incoloy 825 |
N08825 |
1/2 |
0.500 |
0.083 |
8,740 |
32,382 |
9,736 |
10,150 |
| Incoloy 825 |
N08825 |
5/8 |
0.625 |
0.049 |
3,930 |
14,538 |
4,931 |
4,350 |
| Incoloy 825 |
N08825 |
5/8 |
0.625 |
0.065 |
5,361 |
19,865 |
6,324 |
5,800 |
| Incoloy 825 |
N08825 |
5/8 |
0.625 |
0.083 |
6,846 |
25,367 |
8,076 |
7,975 |
| Incoloy 825 |
N08825 |
3/4 |
0.750 |
0.049 |
3,273 |
12,110 |
4,108 |
3,625 |
| Incoloy 825 |
N08825 |
3/4 |
0.750 |
0.065 |
4,466 |
16,547 |
5,268 |
5,075 |
| Incoloy 825 |
N08825 |
3/4 |
0.750 |
0.083 |
5,703 |
21,131 |
6,727 |
6,525 |
Theoretical burst pressure based on minimum wall thickness, and minimum tensile strength
Theoretical collapse pressure based on minimum wall thickness, and minimum yield strength
Pressure rating at 100°F (38°C), neutral and static conditions
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