Incoloy Alloy 825 Seamless Stainless Steel Tubing Bright Annealed For Control Line
Alloy 825, Chemical composition
| Element | Composition, % |
| Chromium | 19.5-23.5 |
| Nickel | 38.0-46.0 |
| Ferrous | 22.0 min. |
| Molybdenum | 2.5-3.5 |
| Manganese | 1.00 max. |
| Silicon | 0.50 max. |
| Carbon | 0.050 max. |
| Sulfur | 0.030 max. |
| Aluminum | 0.20 max. |
| Titanium | 0.6-1.2 |
| Copper | 1.5-3.0 |
Application: Very good sour well and chloride stress corrosion cracking resistance.
Tensile strength, min.: 85000psi (586MPa)
Yield strength, min.: 35000psi (240MPa)
Elongation in 2 in., min.: 30%
Application
Incoloy 825 seamless pressure tubing in the heat treated condition is typically used in oil and natural gas wells for chemical injection applications. In such applications, it is commonly reffered to as capillary tubing and is free-hanging (self-supporting) inside the production casing. The chemicals being injected are often used to enhance production flow rates, inhibit corrosion or scaling and/or de-water. The tubing is frequently supplied as 5,000 to 35,000 ft. coils on a wooden reel, depending on size.
HYDRAULIC AND INSTRUMENTATION APPLICATIONS
STAINLESS STEEL AND HIGH NICKEL ALLOYS COILED TUBING SOLUTIONS
MEILONG is an important manufacturer in premium coiled seamless & welded tubular solutions for oil and gas applications. In an endeavor to increase its presence in subsea, MEILONG has extended its offer by developing a highly innovative tubular solution for umbilical projects.
MEILONG has developed a strong and unique expertise in premium quality tubes to answer the most stringent specifications of its customers. Based on this expertise in high pressure, and extremely high pressure tubes, MEILONG’s state-of-art factory is exclusively dedicated to the manufacturing and supply of super duplex and high nickel alloys tubes for corrosive downhole applications and is now ready to offer the highest specifications for your toughest challenges.
NDT
Full online and real time controls
100% of tube length & circumference Eddy Current & Ultrasonic Testing
Inhouse Laboratory
Mechanical testing
Metallurgical testing
Dimensional controls
MEILONG has been supplying the world’s best coiled tubes up to 3,234 lbs (1,467 kgs) and 14,764 ft (4500 mtrs) length without orbital butt welding.
Bright annealing treated, our coiled tubes are excellent in both internal and external surface quality.
Our coiled tubes are specially used in oil and gas industry requiring a higher level of reliability.
All the products are performed and delivered after ECT as well as hydrostatic & ovality test satisfying ASTM standards.
| Materials | Imperial Size | Metric Size |
| OD (in.) | WT (in.) | OD (mm) | WT (mm) |
| SS316L Duplex 2205 Super Duplex 2506 Incoloy 825 Inconel 625 | 1/8 | 0.125 | 0.028 | 3.18 | 0.71 |
| 1/8 | 0.125 | 0.035 | 3.18 | 0.89 |
| 1/4 | 0.250 | 0.035 | 6.35 | 0.89 |
| 1/4 | 0.250 | 0.049 | 6.35 | 1.24 |
| 1/4 | 0.250 | 0.065 | 6.35 | 1.65 |
| 3/8 | 0.375 | 0.035 | 9.53 | 0.89 |
| 3/8 | 0.375 | 0.049 | 9.53 | 1.24 |
| 3/8 | 0.375 | 0.065 | 9.53 | 1.65 |
| 3/8 | 0.375 | 0.083 | 9.53 | 2.11 |
| 1/2 | 0.500 | 0.049 | 12.70 | 1.24 |
| 1/2 | 0.500 | 0.065 | 12.70 | 1.65 |
| 1/2 | 0.500 | 0.083 | 12.70 | 2.11 |
| 5/8 | 0.625 | 0.049 | 15.88 | 1.24 |
| 5/8 | 0.265 | 0.065 | 15.88 | 1.65 |
| 5/8 | 0.625 | 0.083 | 15.88 | 2.11 |
| 3/4 | 0.750 | 0.049 | 19.05 | 1.24 |
| 3/4 | 0.750 | 0.065 | 19.05 | 1.65 |
| 3/4 | 0.750 | 0.083 | 19.05 | 2.11 |
Applied Standard
ASTM B704, Standard Specification for Welded UNS N06625, UNS N06219, and UNS N08825 Alloy Tubes, except in the as-cold worked condition
ASTM B423, Standard Specification for UNS N08825 Seamless Pipe and Tube
Meets the material limits for annealed and cold-worked, solid solution, nickel-based alloys listed in ISO 15156-3 for material type 4c in Table A.14.
Description
Incoloy 825 is a titanium-stabilized austenitic nickel-iron-chromium alloy with additions of molybdenum and copper. The chemical composition of the alloy is listed in Table 1. The alloy is characterized by good resistance to stress-corrosion cracking due to its nickel content (38.0 to 46.0) and satisfactory resistance to pitting and crevice corrosion. Alloy 825 has shown good corrosion resistance in oil and gas production environments containing hydrogen sulfide, carbon dioxide and chlorides. Consult ISO 15156-3, Table A.14 for the limits regarding material type 4c in hydrogen sulfide containing environments for oil and gas production.
Manufacturing Process and Resultant Properties
Seamless extruded tube hollows are drawn or drawn / sunk to final size to produce seamless tubing coils 500 to 2,000 ft. long, depending upon the size. The tubing is heat treated and joined by orbital welding to achieve the desired length. The final material condition of the tubing is heat treated.
Nondestructive Testing (NDT)
Eddy current testing (ECT) is performed at final size in the heat treated condition. Radiographic testing is performed on all orbital welds. Yield pressure hydrostatic testing is performed on the heat treated tubing at final size.
Quality Assurance
Eddy current test (ECT)
Ultrasonic test
Hydrostatic test
Chemical composition analysis
Tensile test
Hardness test
Dimension & visual inspect
Metallographic analysis
Norm Equivalence
| Grade | UNS No | Euro norm | Japanese |
| No | Name | JIS |
| Alloy | ASTM/ASME | EN10216-5 | EN10216-5 | JIS G3463 |
| 316L | S31603 | 1.4404, 1.4435 | X2CrNiMo17-12-2 | SUS316LTB |
| 2205 | S31803 | 1.4462 | X2CrNiMoN22-5-3 | SUS329J3LTB |
| 2507 | S32750 | 1.4410 | X2CrNiMoN25-7-4 | |
| 625 | N06625 | 2.4856 | NiCr22Mo9Nb | |
| 825 | N08825 | 2.4858 | NiCr21Mo | |
Product Tags:
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Incoloy Alloy 825 SS Capillary Coiled Tubing Bright Annealed For Control Line Images
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