Suzhou Meilong Tube Co., Ltd.
| Payment Terms | L/C, T/T |
| Supply Ability | 100 metric tons per month (including duplex steel tubing, nickel alloy tubing) |
| Delivery Time | 7 days |
| Packaging Details | Level wound coiled on spools/drums, and packed in wooden cases |
| Alloy | Incoloy 825, UNS N08825 |
| Surface | Clean and bright |
| Condition | Annealed |
| Properties | Enhanced tensile and yield strength |
| Feature | High pressure tubing |
| Application | Down hole chemical injection in oil and gas wells |
| Standard | ASTM B704 |
| Size | Tight dimensional tolerances |
| Application Standard | NACE MR0175 / ISO15156 |
| Test | 100% length is hydraulic tested |
| Brand Name | Meilong Tube |
| Model Number | 3 / 8 '' OD x 0.049 '' WT |
| Certification | ISO9001 : 2015 |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 100 metric tons per month (including duplex steel tubing, nickel alloy tubing) |
| Delivery Time | 7 days | Packaging Details | Level wound coiled on spools/drums, and packed in wooden cases |
| Alloy | Incoloy 825, UNS N08825 | Surface | Clean and bright |
| Condition | Annealed | Properties | Enhanced tensile and yield strength |
| Feature | High pressure tubing | Application | Down hole chemical injection in oil and gas wells |
| Standard | ASTM B704 | Size | Tight dimensional tolerances |
| Application Standard | NACE MR0175 / ISO15156 | Test | 100% length is hydraulic tested |
| Brand Name | Meilong Tube | Model Number | 3 / 8 '' OD x 0.049 '' WT |
| Certification | ISO9001 : 2015 | Place of Origin | China |
| High Light | 1.24mm Geothermal Tubing ，0.049in Geothermal Tubing ，Capillary Coiled Tubing UNS N08825 | ||
3 / 8 '' OD x 0.049 '' WT Geothermal Tubing Chemical Injection Line without Orbital Welds
Meilong Tube supplies a whole range of products to the oil and gas sector, and it’s one of our most important markets. You’ll find our high performance capillary line tubes successfully used in some of the most aggressive subsea and downhole conditions thanks to our proven track record in meeting the strict quality requirements of the oil, gas and geothermal energy industries.
Improving technology has extended the range of ways in which oil and gas fields can be exploited, and increasingly projects require the use of long, continuous lengths of stainless steel control lines and chemical injection lines. These are employed in a variety of applications including hydraulic controls, instrumentation, chemical injection, umbilicals and flowline control. Meilong Tube supplies products for all of these applications, and more, lowering operating costs and improved recovery methods for our customers.
Thanks to advances in tubular control line and injection line technologies, it is now cheaper and easier to connect downhole valves and chemical injection systems with remote and satellite wells, for both fixed and floating central platforms. We offer coiled tubing for control lines in stainless steel and nickel alloys.
Testing Abilities for Quality of Geothermal Tubing
We monitor product quality through a rigorous inspection and testing process conducted by our team of highly qualified professionals. The extensive training and experience of Meilong Tube members includes:
|
Chemical Corrosion Dimensional Eddy current Elongation |
Flare Flatten Grain size Hardness Hydrostatic |
Metallurgical Positive material identification (PMI) Surface roughness Tensile Yield |
Features of Chemical Injection Line Geothermal Tubing
Close dimensional tolerances
Considerably enhanced mechanical properties
Superior surface finish
High cleanness of inside surface
Controlled ovality, eccentricity
Typical Injection Line Geothermal Tubing 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.
| 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 | |
Chemical Composition of Incoloy 825
| 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 |
Standard Equivalence
| Grade | UNS No | Euro Standard | |
| No | Name | ||
| Alloy | ASTM/ASME | EN10216-5 | EN10216-5 |
| 825 | N08825 | 2.4858 | NiCr21Mo |
Dimensional Tolerance of Incoloy 825 Geothermal Tubing Injection Line
|
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% |
Injection Line Geothermal Tubing Weight per Meter (kg)
Incoloy 825 (UNS N08825)
| O.D. | W.T. | |||||
| Fraction | Decimal | 0.028 | 0.035 | 0.049 | 0.065 | 0.083 |
| 1/8 | 0.125 | 0.0446 | 0.0517 | - | - | - |
| 1/4 | 0.250 | 0.1022 | 0.1237 | 0.1916 | 0.1977 | 0.2277 |
| 3/8 | 0.375 | 0.1596 | 0.1955 | 0.2624 | 0.3311 | 0.3983 |
| 1/2 | 0.500 | 0.2172 | 0.2674 | 0.3631 | 0.4646 | 0.5688 |
| 5/8 | 0.625 | 0.2748 | 0.3394 | 0.4638 | 0.5982 | 0.7392 |
| 3/4 | 0.750 | 0.3322 | 0.4112 | 0.5644 | 0.7317 | 0.9096 |
Geothermal Tubing Injection Line 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 | ||
| 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
Injection Line Process and Packing
Seamless: pierced, redrawn, annealed (multi-pass circulation process)
Welded: longitudinally welded (by TIG or Laser beam), 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.
Company Details
Business Type:
Manufacturer,Exporter,Seller
Year Established:
2009
Total Annual:
13.4 million-14.9 million
Employee Number:
90~100
Ecer Certification：
Verified Supplier
Meilong Tube manufactures high quality seamless and redrawn, seam-welded and redrawn coiled tubing which are made from corrosion-resistant austenitic, duplex, super duplex stainless steel and nickel alloy grades. 100% of products are used as hydraulic power control lines, chemical injection lines, a... Meilong Tube manufactures high quality seamless and redrawn, seam-welded and redrawn coiled tubing which are made from corrosion-resistant austenitic, duplex, super duplex stainless steel and nickel alloy grades. 100% of products are used as hydraulic power control lines, chemical injection lines, a...
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