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We herewith introduce The Stainless Steel Capillary Tubes for you , the capillary tubings are used while supplying liquids and gases from sensors to measuring instruments. We supply large Quantity stainless steel capillary tube every year, Bright surface, without any welding Joints, It made by one monether material. We are willing to do the Hydraulic Testing, PMI testing for you once you choose us. Sincerely hope we can start cooperate soon!
Incoloy 825 Control Line(Capillary Tube)：
The following table shows the chemical composition of Incoloy(r) alloy 825
| Element | Content (%) |
| Nickel, Ni | 38-46 |
| Iron, Fe | 22 |
| Chromium, Cr | 19.5-23.5 |
| Molybdenum, Mo | 2.50-3.50 |
| Copper, Cu | 1.50-3.0 |
| Manganese, Mn | 1 |
| Titanium, Ti | 0.60-1.20 |
| Silicon, Si | 0.50 |
| Aluminum, Al | 0.20 |
| Carbon, C | 0.050 |
| Sulfur, S | 0.030 |
Physical Properties
The physical properties of Incoloy(r) alloy 825 are given in the following table.
| Properties | Metric | Imperial |
| Density | 8.14 g/cm³ | 0.294 lb/in³ |
| Melting point | 1385°C | 2525°F |
Mechanical Properties
The mechanical properties of Incoloy(r) alloy 825 are highlighted in the following table.
| Properties | Metric | Imperial |
| Tensile strength (annealed) | 690 MPa | 100000 psi |
| Yield strength (annealed) | 310 MPa | 45000 psi |
| Elongation at break (annealed prior to test) | 45% | 45% |
Thermal Properties
| Properties | Metric | Imperial |
| Thermal expansion co-efficient (at 20-100°C/68-212°F) | 14 µm/m°C | 7.78 µin/in°F |
| Thermal conductivity | 11.1 W/mK | 77 BTU in/hr.ft².°F |
Incoloy 825 0.125 in to 0.625 in Capillary tubing Introductions:
◆Tube Body Load: Yield & Tensile Min‐imums calculated on Specified Wall.
◆Hydrostatic Test Pressure: All completed coiled tubing strings shall be hydrostat‐ic pressure tested prior to shipping. The hydrostatic test pressure shall be lesser of 90% of the theoretical burst yield strength or 17,500 psi or 120700 kpa (unless spe‐cifically agreed between purchaser and manufacturer).
◆Internal Yield: Internal Pressure to cause yielding using Minimum Yield Strength and Minimum Wall Thickness.
◆Maximum Working Pressure is a func‐tion of tube condition and is determined by the user.
◆Torque Values Calculated Using Minimum Wall Thickness and Minimum Yield Strength.
◆Other size/wall thickness available on request.
◆Above data is for new tubing at speci‐fied minimum strengths.
| Outside diameter, in. | Wall thickness, in. | Working pressure2) | Burst pressure2) | Collapse pressure4) | ||||||||||||
| psi (MPa) | psi (MPa) | psi (MPa) | ||||||||||||||
| 1/4 | 0.035 | 6,600 (46) | 22,470 (155) | 6,600 (46) | ||||||||||||
| 1/4 | 0.049 | 9,260 (64) | 27,400 (189) | 8,710 (60) | ||||||||||||
| 1/4 | 0.065 | 12,280 (85) | 34,640 (239) | 10,750 (74) | ||||||||||||
| 3/8 | 0.035 | 4,410 (30) | 19,160 (132) | 4,610 (32) | ||||||||||||
| 3/8 | 0.049 | 6,170 (43) | 21,750 (150) | 6,220 (43) | ||||||||||||
| 3/8 | 0.065 | 8,190 (56) | 25,260 (174) | 7,900 (54) | ||||||||||||
| 3/8 | 0.083 | 10,450 (72) | 30,050 (207) | 9,570 (66) | ||||||||||||
| 1/2 | 0.049 | 4,630 (32) | 19,460 (134) | 4,820 (33) | ||||||||||||
| 1/2 | 0.065 | 6,140 (42) | 21,700 (150) | 6,200 (43) | ||||||||||||
| 1/2 | 0.083 | 7,840 (54) | 24,600 (170) | 7,620 (53) | ||||||||||||
| 5/8 | 0.049 | 3,700 (26) | 18,230 (126) | 3,930 (27) | ||||||||||||
| 5/8 | 0.065 | 4,900 (34) | 19,860 (137) | 5,090 (35) | ||||||||||||
| 5/8 | 0.083 | 6,270 (43) | 26,910 (151) | 6,310 (44) | ||||||||||||
| 3/4 | 0.049 | 3,080 (21) | 17,470 (120) | 3,320 (23) | ||||||||||||
| 3/4 | 0.065 | 4,090 (28) | 18,740 (129) | 4,310 (30) | ||||||||||||
| 3/4 | 0.083 | 5,220 (36) | 20,310 (140) | 5,380 (37) | ||||||||||||
Standard Sizes of stainless steel coiled tubing
| Stainless Steel Coil Tube Outside Diameter | 6.25MM-25.4mm |
| Stainless Steel Coil Tube Thickness | 0.2mm – 2mm |
| Stainless Steel Coil Tube Grades | TP – 304,304L,316,316L,201 ALLO 625 825 2205 ect |
| Stainless Steel Seamless Coil Tubing Specifications | ASTM A213 (average wall) and ASTM A269 |
| Stainless Steel Welded Coil Tubing Specifications | ASTM A249 and ASTM A269 |
We are offering Alloy 825 Capillary Tubing , We are Professional Stainless Steel Capillary Tube Suppliers , including 304 Grdae Capillary Pipes , Inconel 825 Capillary tubing, SS316 Capillary Tubing, 2205 Capillary Pipe and other Grades Capillary tubing, pipes , which are in small bore sizes and precise thickness are available as per the requirements of clients. SS Capillary Tubes sizes range from 0.30 mm to 8.00 mm. They can be availed in thin, standard or heavy wall. Alloy 825 Capillary Pipe and Capillary Tubing diameters of refrigerant capillary tubes range from 0.30 mm to 31.75 mm O.D. And 0.06 mm to 1.65 mm thickness and the length ranges from 1.0 mm to 6.0 mm. It & is widely used in instrumentation Industries. SS 304 capillary tubes and 316 Stainless Steel Capillary Pipes are available in precise cut to lengths are also highly effective in a wide range of temperatures. Stainless steel 316 capillary tubing is generally used for high pressure applications. Our Alloy 825 Seamless Capillary Tubing are mostly used for Hydraulic control lines, Liquid/ Gas Transportation Lines, Medical devices and equipment’s, Chromatography applications, Measurement devices, Remote thermometer systems Small precision stainless steel antenna, Watches, Car antenna tube, Laser engraving equipment etc. As a largest stockholder of SS Capillary Pipes/SS Capillary Tubings includes grades stainless Steel 304 Capillary Pipe, Stainless Steel 304L Capillary Pipe, Stainless Steel 316 Capillary Pipe, Stainless steel 316L Capillary Pipe and Stainless Steel 201 Capillary Pipe , Alloy 825 Capillary seamless tubes and Alloy 825 welding Tubings, those are used in various indutsrial applications.
Application: Stainless Steel Capillary tubes also called round tubing, a roll of Stainless Steel coiled tubing thousands of meters long. SS Capillary Pipes Can replace the conventional tubing for a lot of homework, Alloy 825 Stainless Steel coiled tubing equipment has the characteristics of the belt under the pressure operation, continuous, equipment is small in size, operating cycle fast, low cost. The Alloy 825 Capillary tubing widely used in oil and gas field repair, drilling, completion, logging and other operations plays an increasingly important role in oil and gas exploration and development.Sometimes we can leave at least 30-50cm pipes ends for chemical fufilled. The Stainless Steel Capillary Pipes are used in various critical applications with having an inner surface free from oil, grease and dust particles, This Small sizes precision tubes’ tolerances and thickness as per the requirements by clients.
Standard Stainless Steel Capillary Tubing Pressure Rating and Length:
Stainless Steel Capillary Tubing | ||||
ITEM | Grade | Size | Length | Pressure (Mpa) |
1 | 316L 304L 304 625 825 2205 2507 | 1/8″×0.025″ | 3200 | 80 |
2 | 316L 304L 304 625 825 2205 2507 | 1/8″×0.035″ | 3200 | 100 |
3 | 316L 304L 304 625 825 2205 2507 | 1/4″×0.035″ | 2000 | 100 |
4 | 316L 304L 304 625 825 2205 2507 | 1/4″×0.049″ | 2000 | 100 |
5 | 316L 304L 304 625 825 2205 2507 | 3/8″×0.035″ | 1500 | 80 |
6 | 316L 304L 304 625 825 2205 2507 | 3/8″×0.049″ | 1500 | 100 |
7 | 316L 304L 304 625 825 2205 2507 | 1/2″×0.049″ | 1000 | 80 |
8 | 316L 304L 304 625 825 2205 2507 | 1/2″×0.065″ | 1000 | 100 |
9 | 316L 304L 304 625 825 2205 2507 | φ3mm×0.7mm | 3200 | 80 |
10 | 316L 304L 304 625 825 2205 2507 | φ3mm×0.9mm | 3200 | 100 |
11 | 316L 304L 304 625 825 2205 2507 | φ4mm×0.9mm | 3000 | 100 |
12 | 316L 304L 304 625 825 2205 2507 | φ4mm×1.1mm | 3000 | 100 |
13 | 316L 304L 304 625 825 2205 2507 | φ6mm×0.9mm | 2000 | 100 |
14 | 316L 304L 304 625 825 2205 2507 | φ6mm×1.1mm | 2000 | 100 |
15 | 316L 304L 304 625 825 2205 2507 | φ8mm×1mm | 1800 | 80 |
16 | 316L 304L 304 625 825 2205 2507 | φ8mm×1.2mm | 1800 | 100 |
17 | 316L 304L 304 625 825 2205 2507 | φ10mm×1mm | 1500 | 70 |
18 | 316L 304L 304 625 825 2205 2507 | φ10mm×1.2mm | 1500 | 70 |
19 | 316L 304L 304 625 825 2205 2507 | φ10mm×2mm | 500 | 100 |
20 | 316L 304L 304 625 825 2205 2507 | φ12mm×1.5mm | 500 | 80 |
Standard Stainless Steel Capillary tubing Short Descriptions:
| Thickness | 0.1 to 2.0mm, |
| Brand | Imported |
| Material Grade | 304,304L,316,316L,321,316Ti,Duplex 2205,Monel400,Inconel 625,Inconel 825 |
| Diameter | 1/8inch to 5/8inch OD, expecially 1/4inch, 3/8 inch used largely. Stock size: 6.35mm*1.24mm ,8*0.5mm ,8*0.6mm,8*0.8mm, 8*0.9mm,8*1mm, 9.53*1.24mm,10*1mm,ect.. |
| Shape | Round |
| Unit Pipe Length | we can produce at least 8000feet-10,000 feet per Length, Also the Length can be customised by clients, |
| Range | All sizes and length available |
| Size | As per the requirment |
| Surface | Bright annealed, Polished |
| Pipe Fluid | Chemical, Water, Gas |
The below table shows the chemical composition of the used for Stainless Steel Capillary Tube:
| STAINLESS STEEL CAPILLARY TUBE GRADES | UNS | C | Mn | P | S | Si | Cr | Ni | Mo | Ti | Nb | N |
| TP304 | S30400 | 0.08 | 2 | 0.045 | 0.03 | 1 | 18.0-20.0 | 8.0-11.0 | ||||
| TP304L | S30403 | 0.035 | 2 | 0.045 | 0.03 | 1 | 18.0-20.0 | 8.0-13.0 | ||||
| TP316 | S3160 | 0.08 | 2 | 0.045 | 0.03 | 1 | 16.0-18.0 | 11.0-14.0 | 2.0-3.0 | |||
| TP316L | S31603 | 0.035 | 2 | 0.045 | 0.03 | 1 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 |
STAINLESS STEEL CAPILLARY TUBE MECHANICAL PROPERTIES
| Material | Heat | Temperure | Tensile Strength | Yield Strength | Elongation %, Min |
| Treatment | Min. | Ksi (MPa), Min. | Ksi (MPa), Min. | ||
| º F(º C) | |||||
| TP304 | Solution | 1900 (1040) | 75(515) | 30(205) | 35 |
| TP304L | Solution | 1900 (1040) | 70(485) | 25(170) | 35 |
| TP316 | Solution | 1900(1040) | 75(515) | 30(205) | 35 |
| TP316L | Solution | 1900(1040) | 70(485) | 25(170) | 35 |
STAINLESS STEEL CAPILLARY TUBING EQUIVALENT GRADES
| GRADE | UNS NO | DIN/WERKSTOFF |
| Stainless Steel Capillary Tubing 304 | S30400 | 1.4301 |
| Stainless Steel Capillary Tubing 304L | S30403 | 1.4306 |
| Stainless Steel Capillary Pipe 316 | S31600 | 1.4436 |
| Stainless Steel Capillary Pipe 316L | S31603 | 1.4404 |
SS CAPILLARY TUBE PRESSURE RATING
| OD (INCH) | WALL THICKNESS (INCH) | MIN TENSILE STRENGTH (PSI) | THEORETICAL BURST PRESSURE * (PSI) | WORKING PRESSURE (PSI) 25% OF BURST | THEORETICAL YIELD POINT ** (PSI) | COLLAPSE PRESSURE *** (PSI) | |
| 0.250 | 0.020 | 30,000 | 75,000 | 14,286 | 3,571 | 5,714 | 4,416 |
| 0.250 | 0.028 | 30,000 | 75,000 | 21,649 | 5,412 | 8,660 | 5,967 |
| 0.250 | 0.035 | 30,000 | 75,000 | 29,167 | 7,292 | 11,667 | 7,224 |
| 0.250 | 0.049 | 30,000 | 75,000 | 48,355 | 12,089 | 19,342 | 9,455 |
| 0.250 | 0.065 | 30,000 | 75,000 | 81,250 | 20,313 | 32,500 | 11,544 |
| 0.375 | 0.020 | 30,000 | 75,000 | 8,955 | 2,239 | 3,582 | 3,029 |
| 0.375 | 0.028 | 30,000 | 75,000 | 13,166 | 3,292 | 5,266 | 4,145 |
| 0.375 | 0.035 | 30,000 | 75,000 | 17,213 | 4,303 | 6,885 | 5,077 |
| 0.375 | 0.049 | 30,000 | 75,000 | 26,534 | 6,634 | 10,614 | 6,816 |
| 0.375 | 0.065 | 30,000 | 75,000 | 39,796 | 9,949 | 15,918 | 8,597 |
| 0.500 | 0.020 | 30,000 | 75,000 | 6,522 | 1,630 | 2,609 | 2,304 |
| 0.500 | 0.028 | 30,000 | 75,000 | 9,459 | 2,365 | 3,784 | 3,172 |
| 0.500 | 0.035 | 30,000 | 75,000 | 12,209 | 3,052 | 4,884 | 3,906 |
| 0.500 | 0.049 | 30,000 | 75,000 | 18,284 | 4,571 | 7,313 | 5,304 |
| 0.500 | 0.065 | 30,000 | 75,000 | 26,351 | 6,588 | 10,541 | 6,786 |
| 0.500 | 0.083 | 30,000 | 75,000 | 37,275 | 9,319 | 14,910 | 8,307 |
| 0.625 | 0.020 | 30,000 | 75,000 | 5,128 | 1,282 | 2,051 | 1,859 |
| 0.625 | 0.028 | 30,000 | 75,000 | 7,381 | 1,845 | 2,953 | 2,568 |
| 0.625 | 0.035 | 30,000 | 75,000 | 9,459 | 2,365 | 3,784 | 3,172 |
| 0.625 | 0.049 | 30,000 | 75,000 | 13,947 | 3,487 | 5,579 | 4,335 |
| 0.625 | 0.065 | 30,000 | 75,000 | 19,697 | 4,924 | 7,879 | 5,591 |
| 0.625 | 0.083 | 30,000 | 75,000 | 27,124 | 6,781 | 10,850 | 6,910 |
| 0.625 | 0.095 | 30,000 | 75,000 | 32,759 | 8,190 | 13,103 | 7,734 |
| 0.625 | 0.109 | 30,000 | 75,000 | 40,172 | 10,043 | 16,069 | 8,639 |
| 0.750 | 0.028 | 30,000 | 75,000 | 6,052 | 1,513 | 2,421 | 2,156 |
| 0.750 | 0.035 | 30,000 | 75,000 | 7,721 | 1,930 | 3,088 | 2,669 |
| 0.750 | 0.049 | 30,000 | 75,000 | 11,273 | 2,818 | 4,509 | 3,664 |
| 0.750 | 0.065 | 30,000 | 75,000 | 15,726 | 3,931 | 6,290 | 4,749 |
| 0.750 | 0.083 | 30,000 | 75,000 | 21,318 | 5,330 | 8,527 | 5,905 |
| 0.750 | 0.095 | 30,000 | 75,000 | 25,446 | 6,362 | 10,179 | 6,637 |
| 0.750 | 0.109 | 30,000 | 75,000 | 30,733 | 7,683 | 12,293 | 7,453 |
| 0.750 | 0.120 | 30,000 | 75,000 | 35,294 | 8,824 | 14,118 | 8,064 |
| 0.875 | 0.020 | 30,000 | 75,000 | 3,593 | 898 | 1,437 | 1,340 |
| 0.875 | 0.028 | 30,000 | 75,000 | 5,128 | 1,282 | 2,051 | 1,859 |
| 0.875 | 0.035 | 30,000 | 75,000 | 6,522 | 1,630 | 2,609 | 2,304 |
| 0.049 | 30,000 | 75,000 | 9,459 | 2,365 | 3,784 | 3,172 | |
| 0.875 | 0.065 | 30,000 | 75,000 | 13,087 | 3,272 | 5,235 | 4,126 |
| 0.875 | 0.083 | 30,000 | 75,000 | 17,560 | 4,390 | 7,024 | 5,152 |
| 0.875 | 0.095 | 30,000 | 75,000 | 20,803 | 5,201 | 8,321 | 5,807 |
| 0.875 | 0.109 | 30,000 | 75,000 | 24,886 | 6,221 | 9,954 | 6,543 |
| 0.875 | 0.120 | 30,000 | 75,000 | 28,346 | 7,087 | 11,339 | 7,100 |
| 1.000 | 0.028 | 30,000 | 75,000 | 4,449 | 1,112 | 1,780 | 1,633 |
| 1.000 | 0.035 | 30,000 | 75,000 | 5,645 | 1,411 | 2,258 | 2,027 |
| 1.000 | 0.049 | 30,000 | 75,000 | 8,149 | 2,037 | 3,259 | 2,796 |
| 1.000 | 0.065 | 30,000 | 75,000 | 11,207 | 2,802 | 4,483 | 3,647 |
| 1.000 | 0.083 | 30,000 | 75,000 | 14,928 | 3,732 | 5,971 | 4,567 |
| 1.000 | 0.095 | 30,000 | 75,000 | 17,593 | 4,398 | 7,037 | 5,159 |
| 1.000 | 0.109 | 30,000 | 75,000 | 20,908 | 5,227 | 8,363 | 5,827 |
| 1.000 | 0.120 | 30,000 | 75,000 | 23,684 | 5,921 | 9,474 | 6,336 |
| 1.000 | 0.134 | 30,000 | 75,000 | 27,459 | 6,865 | 10,984 | 6,963 |
| 1.250 | 0.035 | 30,000 | 75,000 | 4,449 | 1,112 | 1,780 | 1,633 |
| 1.250 | 0.049 | 30,000 | 75,000 | 6,380 | 1,595 | 2,552 | 2,260 |
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