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Cold Drawn Seamless Tubes for Mechanical and Hydraulic Applications:
Cold Drawn Seamless Tubes (also known as CDS) are commonly used in applications that require high strength and high pressure resistance. Compared to hot-finished seamless tubes, cold drawn seamless tubes for mechanical applications have tight tolerances and stronger physical properties than other common mechanical tubes. CDS is popular in the hydraulic field for the manufacture of hollow chrome-plated telescopic cylinders and hydraulic rods. It is also commonly used in large-diameter, thick-walled, high-pressure hydraulic cylinders. Cold drawn seamless tubes are also used in heavy equipment manufacturing, such as cranes and garbage trucks.
CFS - Cold drawn seamless tube - Mechanical
CFS - Cold drawn seamless tube - Hydraulic
HFS - Hot Finished Seamless Mechanical Steel Tubes
Mechanical Tube Types:
ASTM A519: Standard specification for Seamless Carbon and Alloy Steel Mechanical Tubing.
ASTM A513: Standard Specification for Electric Resistance Welded Carbon and Alloy Steel Mechanical Tubing.
ASTM A554: Standard Specification for Welded Stainless Steel Mechanical Tubing.
Cold Drawn Seamless Tube Size Chart:
| Cold Drawn Seamless Tube - Mechanical - BS 6323 Part 4 : 1982 CFS 3 | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BS 6323 Part 4 : 1982 Bright-as-Drawn - CFS 3 BK Annealed - CFS 3 GBK | |||||||||||||||||||
| Wall | 0.71 | 0.81 | 0.91 | 1.22 | 1.42 | 1.63 | 2.03 | 2.34 | 2.64 | 2.95 | 3.25 | 4.06 | 4.76 | 4.88 | 6.35 | 7.94 | 9.53 | 12.70 | |
| O.D. | |||||||||||||||||||
| 4.76 | |||||||||||||||||||
| 6.35 | X | X | X | ||||||||||||||||
| 7.94 | X | X | X | X | |||||||||||||||
| 9.53 | X | X | X | X | X | X | X | ||||||||||||
| 11.11 | X | X | X | X | X | ||||||||||||||
| 12.70 | X | X | X | X | X | X | X | ||||||||||||
| 14.29 | X | X | X | X | X | X | X | X | |||||||||||
| 15.88 | X | X | X | X | X | X | X | X | X | ||||||||||
| 17.46 | X | X | X | X | |||||||||||||||
| 19.05 | X | X | X | X | X | X | X | X | X | ||||||||||
| 20.64 | X | X | X | ||||||||||||||||
| 22.22 | X | X | X | X | X | X | X | X | X | X | |||||||||
| 25.40 | X | X | X | X | X | X | X | X | X | X | X | ||||||||
| 26.99 | X | X | X | X | X | ||||||||||||||
| 28.58 | X | X | X | X | X | X | X | X | X | ||||||||||
| 30.16 | X | X | X | ||||||||||||||||
| 31.75 | X | X | X | X | X | X | X | X | X | ||||||||||
| 33.34 | X | X | |||||||||||||||||
| 34.93 | X | X | X | X | X | X | X | X | X | X | |||||||||
| 38.10 | X | X | X | X | X | X | X | X | X | ||||||||||
| 39.69 | X | X | |||||||||||||||||
| 41.28 | X | X | X | X | X | X | X | X | X | ||||||||||
| 42.86 | X | X | |||||||||||||||||
| 44.45 | X | X | X | X | X | X | X | X | X | ||||||||||
| 47.63 | X | X | X | X | X | X | |||||||||||||
| 50.80 | X | X | X | X | X | X | X | X | X | X | |||||||||
| 53.98 | X | X | X | X | X | ||||||||||||||
| 57.15 | X | X | X | X | X | X | X | ||||||||||||
| 60.33 | X | X | X | X | X | X | X | ||||||||||||
| 63.50 | X | X | X | X | X | X | X | X | |||||||||||
| 66.68 | X | X | X | ||||||||||||||||
| 69.85 | X | X | X | X | X | X | X | ||||||||||||
| 73.02 | X | ||||||||||||||||||
| 76.20 | X | X | X | X | X | X | X | X | X | ||||||||||
| 79.38 | X | ||||||||||||||||||
| 82.55 | X | X | X | X | X | ||||||||||||||
| 88.90 | X | X | X | X | |||||||||||||||
| 95.25 | X | X | |||||||||||||||||
| 101.60 | X | X | |||||||||||||||||
| 107.95 | X | X | |||||||||||||||||
| 114.30 | X | X | |||||||||||||||||
| 127.00 | X | X | |||||||||||||||||
| Cold Drawn Seamless Tube - Mechanical | |||||||||||||||||||
| Cold Drawn Seamless tube for Hydraulic & Pneumatic Lines - BS 3602 Part 1 CFS Cat 2 Alternatively Din 2391 ST 35.4 NBK | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BS 3602 Part 1 CFS Cat 2 Alternatively Din 2391 ST 35.4 NBK | ||||||||||||||||||||
| Wall | 0.91 | 1.00 | 1.22 | 1.42 | 1.50 | 1.63 | 2.00 | 2.03 | 2.50 | 2.64 | 2.95 | 3.00 | 3.25 | 3.66 | 4.00 | 4.06 | 4.88 | 5.00 | 6.00 | |
| O.D. | ||||||||||||||||||||
| 6.00 | X | X | X | |||||||||||||||||
| 6.35 | X | X | X | |||||||||||||||||
| 7.94 | X | X | X | |||||||||||||||||
| 8.00 | X | X | X | |||||||||||||||||
| 9.52 | X | X | X | X | X | |||||||||||||||
| 10.00 | X | X | X | |||||||||||||||||
| 12.00 | X | X | X | X | X | |||||||||||||||
| 12.70 | X | X | X | X | X | |||||||||||||||
| 13.50 | X | |||||||||||||||||||
| 14.00 | X | X | X | X | ||||||||||||||||
| 15.00 | X | X | X | X | X | |||||||||||||||
| 15.88 | X | X | X | X | X | X | ||||||||||||||
| 16.00 | X | X | X | X | ||||||||||||||||
| 17.46 | X | |||||||||||||||||||
| 18.00 | X | X | X | |||||||||||||||||
| 19.05 | X | X | X | X | X | |||||||||||||||
| 20.00 | X | X | X | X | X | |||||||||||||||
| 21.43 | X | X | ||||||||||||||||||
| 22.00 | X | X | X | X | ||||||||||||||||
| 22.22 | X | X | X | X | X | |||||||||||||||
| 25.00 | X | X | X | X | X | |||||||||||||||
| 25.40 | X | X | X | X | X | |||||||||||||||
| 26.99 | X | |||||||||||||||||||
| 28.00 | x | x | x | X | ||||||||||||||||
| 30.00 | X | X | X | X | X | |||||||||||||||
| 31.75 | X | X | X | X | X | |||||||||||||||
| 34.13 | X | |||||||||||||||||||
| 34.93 | X | |||||||||||||||||||
| 35.00 | X | X | X | X | ||||||||||||||||
| 38.00 | X | X | X | X | X | |||||||||||||||
| 38.10 | X | X | X | |||||||||||||||||
| 42.00 | X | X | ||||||||||||||||||
| 44.45 | X | X | ||||||||||||||||||
| 48.42 | X | |||||||||||||||||||
| 50.00 | X | |||||||||||||||||||
| 50.80 | X | X | X | X | X | |||||||||||||||
| Cold Drawn Seamless tube for Hydraulic & Pneumatic Lines | ||||||||||||||||||||
Hot Finished Seamless Mechanical Steel Tube Size Chart:
| Hot Finished Seamless Mechanical Steel Tube. 50.8mm - 193.7mm | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Hot Finished Seamless Mechanical Steel Tube EN 10297-1 | |||||||||||
| O.D. mm | Wall Thickness mm | O.D. mm | Wall Thickness mm | O.D. mm | Wall Thickness mm | O.D. mm | Wall Thickness mm | O.D. mm | Wall Thickness mm | O.D. mm | Wall Thickness mm |
| 50.8 | 4.0 | 76.1 | 4.5 | 95.2 | 6.3 | 120.6 | 8.0 | 146.0 | 9.5 | 168.3 | 4.5 |
| 50.8 | 6.3 | 76.1 | 5.6 | 95.2 | 9.5 | 120.6 | 9.5 | 146.0 | 12.5 | 168.3 | 5.0 |
| 50.8 | 8.0 | 76.1 | 6.3 | 95.2 | 12.5 | 120.6 | 12.5 | 168.3 | 5.6 | ||
| 50.8 | 9.5 | 76.1 | 8.0 | 95.2 | 16.0 | 120.6 | 19.0 | 152.4 | 6.3 | 168.3 | 6.3 |
| 50.8 | 12.5 | 76.1 | 9.5 | 95.2 | 19.0 | 120.6 | 25.4 | 152.4 | 9.5 | 168.3 | 8.0 |
| 76.1 | 12.5 | 120.6 | 32.0 | 152.4 | 11.1 | 168.3 | 9.5 | ||||
| 57.1 | 4.0 | 76.1 | 16.0 | 101.6 | 4.0 | 152.4 | 12.5 | 168.3 | 12.5 | ||
| 57.1 | 6.3 | 76.1 | 19.0 | 101.6 | 5.0 | 127.0 | 5.0 | 152.4 | 16.0 | 168.3 | 16.0 |
| 57.1 | 9.5 | 101.6 | 6.3 | 127.0 | 6.3 | 152.4 | 19.0 | 168.3 | 25.0 | ||
| 57.1 | 12.5 | 82.5 | 6.3 | 101.6 | 8.0 | 127.0 | 9.5 | 152.4 | 25.0 | 168.3 | 30.0 |
| 82.5 | 9.5 | 101.6 | 9.5 | 127.0 | 12.5 | 152.4 | 31.8 | 168.3 | 35.0 | ||
| 60.3 | 4.5 | 82.5 | 12.5 | 101.6 | 12.5 | 127.0 | 16.0 | 152.4 | 35.0 | 168.3 | 40.0 |
| 60.3 | 5.0 | 82.5 | 16.0 | 101.6 | 16.0 | 127.0 | 19.0 | 152.4 | 40.0 | 168.3 | 50.0 |
| 60.3 | 6.3 | 82.5 | 19.0 | 101.6 | 19.0 | 127.0 | 25.0 | 152.4 | 45.0 | ||
| 60.3 | 8.0 | 101.6 | 25.0 | 177.8 | 6.3 | ||||||
| 60.3 | 9.5 | 88.9 | 4.0 | 133.0 | 6.3 | 159.0 | 9.5 | 177.8 | 9.5 | ||
| 60.3 | 12.5 | 88.9 | 4.5 | 108.0 | 6.3 | 133.0 | 9.5 | 159.0 | 12.5 | 177.8 | 12.5 |
| 88.9 | 5.0 | 108.0 | 9.5 | 133.0 | 12.5 | 159.0 | 19.0 | 177.8 | 19.0 | ||
| 63.5 | 6.3 | 88.9 | 5.6 | 108.0 | 12.5 | 133.0 | 19.0 | 159.0 | 25.0 | 177.8 | 25.0 |
| 63.5 | 8.0 | 88.9 | 6.3 | 108.0 | 16.0 | 133.0 | 25.0 | 159.0 | 30.0 | 177.8 | 34.9 |
| 63.5 | 9.5 | 88.9 | 8.0 | 108.0 | 19.0 | 159.0 | 35.0 | 177.8 | 40.0 | ||
| 63.5 | 12.5 | 88.9 | 9.5 | 139.7 | 5.6 | 159.0 | 40.0 | 177.8 | 50.0 | ||
| 63.5 | 16.0 | 88.9 | 12.5 | 114.3 | 4.5 | 139.7 | 6.3 | 159.0 | 50.0 | ||
| 88.9 | 16.0 | 114.3 | 5.6 | 139.7 | 8.0 | 193.7 | 5.6 | ||||
| 69.9 | 6.3 | 88.9 | 19.0 | 114.3 | 6.3 | 139.7. | 9.5 | 165.1 | 6.3 | 193.7 | 6.3 |
| 69.9 | 9.5 | 114.3 | 8.0 | 139.7 | 12.5 | 165.1 | 31.8 | 193.7 | 8.0 | ||
| 69.9 | 12.5 | 114.3 | 9.5 | 139.7 | 19.0 | 165. 1 | 38.1 | 193.7 | 9.5 | ||
| 69.9 | 16.0 | 114.3 | 12.5 | 139.7 | 25.0 | 193.7 | 12.5 | ||||
| 114.3 | 16.0 | 139.7 | 30.0 | 193.7 | 16.0 | ||||||
| 114.3 | 19.0 | 1397 | 35.0 | 193.7 | 19.0 | ||||||
| 114.3 | 25.4 | 139.7 | 40.0 | 193.7 | 25.0 | ||||||
| 193.7 | 30.0 | ||||||||||
| 193.7 | 35.0 | ||||||||||
| 193.7 | 40.0 | ||||||||||
| 193.7 | 50.0 | ||||||||||
| Hot Finished Seamless Mechanical Steel Tube. 203.2mm - 660mm | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Hot Finished Seamless Mechanical Steel Tube EN 10297-1 | |||||||||||
| O.D. mm | Wall Thickness mm | O.D. mm | Wall Thickness mm | O.D. mm | Wall Thickness mm | O.D. mm | Wall Thickness mm | O.D. mm | Wall Thickness mm | O.D. mm | Wall Thickness mm |
| 203.2 | 6.3 | 260.0 | 60.0 | 311.0 | 12.5 | 368.3 | 30.0 | 431.8 | 76.2 | 546.0 | 30.0 |
| 203.2 | 9.5 | 260.0 | 70.0 | 311.0 | 25.0 | 368.3 | 35.0 | 445.0 | 20.0 | 546.0 | 40.0 |
| 203.2 | 12.5 | 260.0 | 80.0 | 311.0 | 38.1 | 368.3 | 40.0 | 445.0 | 25.0 | 546.0 | 50.0 |
| 203.2 | 19.0 | 260.0 | 90.0 | 311.0 | 50.8 | 368.3 | 45.0 | 445.0 | 30.0 | 546.0 | 60.0 |
| 203.2 | 25.0 | 311.0 | 57.2 | 368.3 | 50.0 | 445.0 | 35.0 | ||||
| 203.2 | 38.1 | 273.0 | 6.3 | 368.3 | 60.0 | 445.0 | 40.0 | 550.0 | 80.0 | ||
| 203.2 | 50.8 | 273.0 | 7.1 | 323.9 | 6.3 | 368.3 | 65.0 | 445.0 | 55.0 | ||
| 273.0 | 9.5 | 323.9 | 7.1 | 368.3 | 80.0 | 445.0 | 60.0 | 558.8 | 20.0 | ||
| 219.1 | 5.0 | 273.0 | 12.7 | 323.9 | 9.5 | 445.0 | 65.0 | 558.8 | 25.0 | ||
| 219.1 | 6.3 | 273.0 | 16.0 | 323.9 | 12.7 | 381.0 | 12.5 | 445.0 | 70.0 | 558.8 | 35.0 |
| 219.1 | 7.0 | 273.0 | 19.0 | 323.9 | 14.2 | 381.0 | 20.0 | 558.8 | 40.0 | ||
| 219.1 | 9.5 | 273.0 | 25.0 | 323.9 | 19.0 | 381.0 | 25.0 | 457.2 | 558.8 | 45.0 | |
| 219.1 | 12.5 | 273.0 | 34.9 | 323.9 | 25.0 | 381.0 | 38.1 | 457.2 | 12.7 | 558.8 | 50.0 |
| 219.1 | 19.0 | 273.0 | 41.2 | 323.9 | 28.6 | 381.0 | 50.0 | 457.2 | 19.1 | 558.8 | 60.0 |
| 219.1 | 25.0 | 273.0 | 50.0 | 323.9 | 31.8 | 381.0 | 63.5 | 457.2 | 25.0 | 558.8 | 70.0 |
| 219.1 | 35.0 | 273.0 | 60.0 | 323.9 | 35.0 | 381.0 | 76.2 | 457.2 | 35.0 | 558.8 | 85.0 |
| 219.1 | 40.0 | 273.0 | 85.0 | 323.9 | 41.2 | 457.2 | 40.0 | 558.8 | 110.0 | ||
| 219.1 | 45.0 | 323.9 | 47.6 | 394.0 | 28.0 | 457.2 | 50.0 | ||||
| 219.1 | 50.0 | 279.4 | 20.0 | 323.9 | 50.0 | 394.0 | 30.0 | 457.2 | 60.0 | 572.0 | 25.0 |
| 219.1 | 60.0 | 279.4 | 25.0 | 323.9 | 55.5 | 394.0 | 35.0 | 457 .2 | 76.1 | 572.0 | 35.0 |
| 279.4 | 28.6 | 323.9 | 63.5 | 394 0 | 40.0 | 457.2 | 85.0 | 572.0 | 40.0 | ||
| 228.6 | 6.3 | 279.4 | 35.0 | 323.9 | 75.0 | 394.0 | 45.0 | 457.2 | 90.0 | 572.0 | 50.0 |
| 228.6 | 9.5 | 279.4 | 38.1 | 323.9 | 90.0 | 394.0 | 50.0 | 572.0 | 70.0 | ||
| 228.6 | 12.5 | 279.4 | 50.8 | 394.0 | 100.0 | 470.0 | 25.0 | 572.0 | 80.0 | ||
| 228.6 | 19.0 | 279.4 | 57.2 | 330.2 | 25.4 | 470.0 | 30.0 | 572.0 | 85.0 | ||
| 228.6 | 25.0 | 330.2 | 50.8 | 406.4 | 9.5 | 470.0 | 35.0 | ||||
| 228.6 | 34.9 | 292.0 | 19.0 | 330.2 | 76.2 | 406.4 | 12.7 | 470.0 | 45.0 | 610.0 | 12.7 |
| 228.6 | 44.4 | 292.0 | 25.0 | 406.4 | 19.1 | 470.0 | 50.0 | 610.0 | 20.0 | ||
| 228.6 | 50.0 | 292.0 | 38.1 | 342.9 | 20.0 | 406.4 | 25.0 | 470.0 | 60.0 | 610.0 | 25.0 |
| 228.6 | 60.0 | 292.0 | 46.0 | 342.9 | 25.4 | 406.4 | 28.0 | 470.0 | 70.0 | 610.0 | 30.0 |
| 292.0 | 50.8 | 342.9 | 30.0 | 406.4 | 30.0 | 610.0 | 35.0 | ||||
| 241.0 | 50.0 | 292.0 | 57.0 | 342.9 | 38. 1 | 406.4 | 36.0 | 495.0 | 30.0 | 610.0 | 40.0 |
| 241.0 | 60.0 | 342.9 | 45.0 | 406.4 | 40.0 | 495.0 | 35.0 | 610.0 | 45.0 | ||
| 241.0 | 70.0 | 298.5 | 9.5 | 342.9 | 50.0 | 406.4 | 50.0 | 495.0 | 40.0 | 610.0 | 50.0 |
| 241.0 | 80.0 | 298.5 | 12.5 | 342.9 | 63.5 | 406.4 | 55.0 | 495.0 | 45.0 | 610.0 | 60.0 |
| 298.5 | 14.2 | 342.9 | 90.0 | 406.4 | 60.0 | 495.0 | 50.0 | 610.0 | 70.0 | ||
| 244.5 | 5.9 | 298.5 | 16.0 | 406.4 | 70.0 | 495.0 | 55.0 | 610.0 | 80.0 | ||
| 244.5 | 7.1 | 298.5 | 20.0 | 355.6 | 9.0 | 406.4 | 76.2 | 495.0 | 75.0 | 610.0 | 85.0 |
| 244.5 | 9.5 | 298.5 | 25.0 | 355.6 | 12.7 | 406.4 | 80.0 | 610.0 | 95.0 | ||
| 244.5 | 12.5 | 298.5 | 30.0 | 355.6 | 16.0 | 406.4 | 88.9 | 508.0 | 9.5 | 610.0 | 100.0 |
| 244.5 | 16.0 | 298.5 | 35.0 | 355.6 | 19.1 | 406.4 | 90.0 | 508.0 | 12.5 | 610.0 | 110.0 |
| 244.5 | 19.0 | 298.5 | 40.0 | 355.6 | 25.0 | 406.4 | 100.0 | 508.0 | 20.0 | ||
| 244.5 | 25.0 | 298.5 | 45.0 | 355.6 | 28.6 | 508.0 | 25.0 | 622.0 | 25.0 | ||
| 244.5 | 33.4 | 298.5 | 50.0 | 355.6 | 31.8 | 419.1 | 20.0 | 508.0 | 35.0 | 622.0 | 30.0 |
| 244.5 | 35.0 | 298.5 | 55.0 | 355.6 | 38.1 | 419.1 | 25.0 | 508.0 | 40.0 | 622.0 | 35.0 |
| 244.5 | 38.0 | 298.5 | 75.0 | 355.6 | 44.4 | 419.1 | 30.0 | 508.0 | 50.0 | 622.0 | 40.0 |
| 244.5 | 40.0 | 298.5 | 90.0 | 355.6 | 50.0 | 419.1 | 35.0 | 508.0 | 60.0 | 622.0 | 45.0 |
| 244.5 | 50.0 | 355.6 | 63.5 | 419.1 | 40.0 | 508.0 | 70.0 | 622.0 | 50.0 | ||
| 244.5 | 75.0 | 304.8 | 7.1 | 355.6 | 70.0 | 419.1 | 45.0 | 508.0 | 80.0 | 622.0 | 60.0 |
| 304.8 | 9.5 | 355.6 | 76.2 | 419.1 | 50.0 | 508.0 | 110.0 | 622.0 | 85.0 | ||
| 254.0 | 6.3 | 304.8 | 12.5 | 355.6 | 80.0 | 419.1 | 55.0 | 622.0 | 95.0 | ||
| 254.0 | 9.5 | 304.8 | 19.0 | 355.6 | 100.0 | 419.1 | 60.0 | 521.0 | 20.0 | 622.0 | 100.0 |
| 254.0 | 12.5 | 304.8 | 25.0 | 419.1 | 70.0 | 521.0 | 25.0 | 622.0 | 110.0 | ||
| 254.0 | 19.0 | 304.8 | 38.1 | 368.3 | 10.0 | 419.1 | 90.0 | 521.0 | 30.0 | ||
| 254.0 | 25.0 | 304.8 | 50.8 | 368.3 | 16.0 | 419.1 | 100.0 | 521.0 | 50.0 | 660.0 | 40.0 |
| 254.0 | 38.1 | 304.8 | 55.0 | 368.3 | 17.5 | 521.0 | 60.0 | 660.0 | 70.0 | ||
| 254.0 | 50.8 | 304.8 | 63.5 | 368.3 | 20.0 | 431.8 | 12.7 | 521.0 | 70.0 | 660.0 | 80.0 |
| 254.0 | 55.0 | 304.8 | 80.0 | 368.3 | 25.0 | 431.8 | 25.0 | 521.0 | 75.0 | 660.0 | 100.0 |
| 254.0 | 60.0 | 431.8 | 38.1 | 521.0 | 80.0 | ||||||
| 431.8 | 44.4 | 521.0 | 90.0 | ||||||||
| 431.8 | 50.8 | ||||||||||
| 431.8 | 63.5 | 546.0 | 20.0 | ||||||||
Read more: Mechanical Tubing vs. Structural Tubing or ASTM A519 Seamless Mechanical Tube
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