Meilong Tube
Hydrostatic Tested 316L Hydraulic Control Line Capillary Tubing
Meilong Tube specially manufactures seamless and redrawn, welded and
redrawn coiled tubing which are made from corrosion-resistant austenitic, duplex, super duplex stainless steels and
nickel alloy grades. The tubing is used as hydraulic control lines and chemical
injection lines specially serving oil and gas, geothermal industry.
Typical size
Outside diameter of 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.
Alloy materials for control lines
|
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 |
Control line tubing features
Close dimensional tolerances
Considerably enhanced
mechanical properties
Superior surface finish
High cleanness of inside
surface
Controlled ovality,
eccentricity
Control line tubing Weight per Meter (kg), stainless 316L (UNS S31603)
|
O.D. |
W.T. |
|||||
|
Fraction |
Decimal |
0.028 |
0.035 |
0.049 |
0.065 |
0.083 |
|
1/8 |
0.125 |
0.0442 |
0.0512 |
- |
- |
- |
|
1/4 |
0.250 |
0.1012 |
0.1225 |
0.1603 |
0.1957 |
0.2255 |
|
3/8 |
0.375 |
0.1580 |
0.1936 |
0.2598 |
0.3278 |
0.3944 |
|
1/2 |
0.500 |
0.2150 |
0.2647 |
0.3595 |
0.4600 |
0.5631 |
|
5/8 |
0.625 |
0.2720 |
0.3360 |
0.4592 |
0.5923 |
0.7319 |
|
3/4 |
0.750 |
0.3289 |
0.4072 |
0.5588 |
0.7244 |
0.9006 |
Control line tubing
properties
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 |
||
|
Stainless
316L |
S31603 |
1/8 |
0.125 |
0.028 |
9,931 |
40,922 |
9,525 |
11,600 |
|
Stainless
316L |
S31603 |
1/8 |
0.125 |
0.035 |
12,640 |
52,042 |
11,056 |
15,225 |
|
Stainless
316L |
S31603 |
1/4 |
0.250 |
0.035 |
5,939 |
24,474 |
6,621 |
7,250 |
|
Stainless
316L |
S31603 |
1/4 |
0.250 |
0.049 |
8,572 |
35,322 |
8,632 |
10,150 |
|
Stainless
316L |
S31603 |
1/4 |
0.250 |
0.065 |
11,694 |
48,166 |
10,562 |
13,775 |
|
Stainless
316L |
S31603 |
3/8 |
0.375 |
0.035 |
3,818 |
15,731 |
4,659 |
4,350 |
|
Stainless
316L |
S31603 |
3/8 |
0.375 |
0.049 |
5,483 |
22,575 |
6,222 |
6,525 |
|
Stainless
316L |
S31603 |
3/8 |
0.375 |
0.065 |
7,517 |
30,951 |
7,865 |
8,700 |
|
Stainless
316L |
S31603 |
3/8 |
0.375 |
0.083 |
9,808 |
40,372 |
9,551 |
11,600 |
|
Stainless
316L |
S31603 |
1/2 |
0.500 |
0.049 |
4,003 |
16,480 |
4,835 |
5,075 |
|
Stainless
316L |
S31603 |
1/2 |
0.500 |
0.065 |
5,461 |
22,512 |
6,206 |
6,525 |
|
Stainless
316L |
S31603 |
1/2 |
0.500 |
0.083 |
7,133 |
29,364 |
7,648 |
8,700 |
|
Stainless
316L |
S31603 |
5/8 |
0.625 |
0.049 |
3,144 |
12,955 |
3,957 |
3,625 |
|
Stainless
316L |
S31603 |
5/8 |
0.625 |
0.065 |
4,285 |
17,630 |
5,105 |
5,075 |
|
Stainless
316L |
S31603 |
5/8 |
0.625 |
0.083 |
5,472 |
22,513 |
6,519 |
6,525 |
|
Stainless
316L |
S31603 |
3/4 |
0.750 |
0.049 |
2,619 |
10,791 |
3,296 |
2,900 |
|
Stainless
316L |
S31603 |
3/4 |
0.750 |
0.065 |
3,570 |
14,686 |
4,283 |
4,350 |
|
Stainless
316L |
S31603 |
3/4 |
0.750 |
0.083 |
4,558 |
18,753 |
5,431 |
5,800 |
l Theoretical burst pressure based on minimum wall thickness, and minimum tensile strength
l Theoretical collapse
pressure based on minimum wall thickness, and minimum yield strength
l Pressure rating at 100°F
(38°C), neutral and static conditions
Packing
Control line tubing is wound level coiled on the drum
All drums are packed in wooden cases
The package is suitable for both road and sea transportation
- Enhanced mechanical properties:
- Higher tensile strength,Higher yield strength,Higher elongation
