ASTM A269 TP316L Austenitic Stainless Steel Seamless Coiled Tube for Oil and Gas Industry
Coiled tubing in the oil and gas industry is a continuous, long - length metal tube wound on a large - sized reel. YUHONG's stainless - steel coiled tubing is highly versatile and well - suited for multiple oil and gas operations. It is extensively employed in well intervention activities in oil and gas wells, such as well logging, stimulation, and sand control operations.
ASTM A269 TP316L Austenitic Stainless Steel Seamless Coiled Tube Mechanical Test
Flaring Test (Seamless Tubes)
One specimen per lot of finished seamless tubes is taken from one end of a tube for flaring test to evaluate expandability.
Lot Definition for Testing
Tubes of the same nominal size, wall thickness, and heat number before cutting.
For batch furnace heat treatment: same size, heat number, and furnace charge.
For continuous furnace or direct quench: same size, heat number, and processing conditions.
Hardness Test
Two specimens per lot (same lot definition as flaring test) for Brinell or Rockwell hardness testing.
Multiple Heat Treatment
Flaring and hardness tests must be performed on each heat separately when multiple heats are involved.
Reverse Flattening Test (Welded Tubes - for reference)
One specimen per 1,500 ft (460 m) of finished welded tubing; samples from both ends if coil exceeds 1,500 ft.
Maximum Tubes per Heat - Treated Lot
| Tube Size | Maximum Lot Size |
| OD ≥ 2" (50 mm) & WT ≥ 0.200" (5.08 mm) | ≤ 50 tubes |
| 1" (25 mm) < OD < 2" (50 mm) OR OD > 1" & WT < 0.200" | ≤ 75 tubes |
| OD ≤ 1" (25 mm) | ≤ 125 tubes |
ASTM A269 TP316L Austenitic Stainless Steel Seamless Coiled Tube Size Tablet
| Outside Diameter | BWG |
| 25 | 22 | 20 | 18 | 16 | 14 | 12 | 10 |
| Wall Thickness (mm) |
| 0.508 | 0.71 | 0.89 | 1.24 | 1.65 | 2.11 | 2.77 | 3.4 |
| mm | inch | Weight (kg/m) |
| 6.35 | 1/4 | 0.081 | 0.109 | 0.133 | 0.174 | 0.212 | - | - | - |
| 9.53 | 3/8 | 0.126 | 0.157 | 0.193 | 0.257 | 0.356 | 0.429 | - | - |
| 12.7 | 1/2 | 0.214 | 0.263 | 0.356 | 0.457 | 0.612 | 0.754 | - | - |
| 15.88 | 5/8 | 0.271 | 0.334 | 0.455 | 0.588 | 0.796 | 0.995 | - | - |
| 19.05 | 3/4 | 0.327 | 0.405 | 0.553 | 0.729 | 0.895 | 1.236 | - | - |
| 25.4 | 1 | 0.44 | 0.546 | 0.75 | 0.981 | 1.234 | 1.574 | 2.05 | - |
| 31.75 | 1 1/4 | 0.554 | 0.688 | 0.947 | 1.244 | 1.574 | 2.014 | 2.641 | - |
| 38.1 | 1 1/2 | 0.667 | 0.832 | 1.144 | 1.514 | 1.904 | 2.454 | 3.233 | - |
| 44.5 | 1 3/4 | - | - | 1.342 | 1.774 | 2.244 | 2.894 | 3.5 | - |
| 50.8 | 2 | - | - | 1.549 | 2.034 | 2.574 | 3.334 | 4.03 | - |
| 63.5 | 2 1/2 | - | - | 1.949 | 2.554 | 3.244 | 4.214 | 5.13 | - |
| 76.2 | 3 | - | - | 2.345 | 3.084 | 3.914 | 5.094 | 6.19 | - |
| 88.9 | 3 1/2 | - | - | 2.729 | 3.609 | 4.584 | 5.974 | 7.27 | - |
| 101.6 | 4 | - | - | - | 4.134 | 5.254 | 6.854 | 8.35 | - |
| 114.3 | 4 1/2 | - | - | - | 4.654 | 5.924 | 7.734 | 9.43 | - |
ASTM A269 TP316L Austenitic Stainless Steel Seamless Coiled Tube Referenced Documents
| Category | Standard Code | Standard Name |
| ASTM Standards | A262 | Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels |
| | A480/A480M | Specification for General Requirements for Flat - Rolled Stainless and Heat - Resisting Steel Plate, Sheet, and Strip |
| | A632 | Specification for Seamless and Welded Austenitic Stainless Steel Tubing (Small - Diameter) for General Service |
| | A1016/A1016M | Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless Steel Tubes |
| | E527 | Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS) |
| ASME Piping Code | ASME B31.3 | Process Piping |
| Other Standards | SAE J1086 | Practice for Numbering Metals and Alloys |
ASTM A269 TP316L Austenitic Stainless Steel Seamless Coiled Tube Chemical Composition
| Material | ASTM A269 Chemical Composition % Max |
| C | Mn | P | S | Si | Cr | Ni | Mo |
| TP316L | 0.035 D | 2 | 0.045 | 0.03 | 1 | 16.0-18.0 | 10.0-15.0 | 2.00-3.00 |
ASTM A269 TP316L Austenitic Stainless Steel Seamless Coiled Tube Application in Oil and Gas Industry
Exploration
Subsea Pipelines: Used in subsea pipelines for transporting oil and gas, resisting seawater and microbial corrosion.
Wellhead Equipment: Applied in wellhead components like manifolds, withstanding corrosive fluids and high pressure.
Processing
Separation Equipment: For internal parts in three - phase separators, enduring complex media corrosion.
Desulfurization/Decarburization Equipment: In reboilers and condensers of relevant towers, maintaining performance in corrosive environments.
Storage
Tank Pipelines: Used for tank inlet/outlet and tracing pipelines, preventing corrosion from impurities in oil and gas.
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