Nestled in the heart of Addis Ababa, Desta Steel proudly stands as a cornerstone of Ethiopia’s industrial growth, dedicated to supplying robust and reliable materials that build the nation. Our commitment to quality and local expertise shines through in products like our CDS Tubing, a staple for countless projects. We understand that the strength of your work begins with the integrity of your materials, which is why we ensure our tubing meets the highest standards, supporting the vision of engineers, builders, and creators across the country with dependable, readily available steel solutions.
Our CDS Tubing, or Circular Hollow Sections, is crafted from high-quality steel, offering an exceptional blend of strength and versatility. Its composition provides excellent mechanical properties, including impressive yield strength and durability, which allow it to withstand significant structural loads and stress without compromising its form. This inherent resilience makes it resistant to bending and buckling, ensuring long-term performance and reliability in even the most demanding applications, from supporting a building’s framework to withstanding the rigors of machinery.
| Condition | Nominal Yield Strength psi | Nominal Ultimate Strength psi | Nominal Elongation in 2% | Equivalent Rockwell Hardness | Equivalent Brinell Hardness |
| GRADE 1018 c .15/.20 Mn .60/90 P .40 max S .050 max | |||||
| Hot-Rolled | 35,000 | 60,000 | 30 | B-68 | 116 |
| Normalized | 38,000 | 58,000 | 35 | B-66 | 114 |
| Soft-Annealed | 33,000 | 50,000 | 40 | B-57 | 97 |
| As-Drawn | 70,000 | 85,000 | 10 | B-87 | 170 |
| CD-Stress Relief Annealed | 60,000 | 80,000 | 15 | B-85 | 163 |
| GRADE 1020 C. 18/.23 Mn .30/.60 P .040 max S .050 max | |||||
| Hot-Rolled | 38,000 | 60,000 | 30 | B-68 | 116 |
| Normalized | 40,000 | 58,000 | 35 | B-66 | 114 |
| Soft-Annealed | 33,000 | 53,000 | 40 | B-62 | 105 |
| As-Drawn | 65,000 | 80,000 | 10 | B-85 | 163 |
| CD-Stress Relief Annealed | 60,000 | 75,000 | 15 | B-81 | 149 |
| GRADE 1026 C .22/.28 Mn .60/.90 P .030 max S .050 max | |||||
| Hot-Rolled | 47,000 | 70,000 | 28 | B-77 | 137 |
| Normalized | 50,000 | 67,000 | 33 | B-74 | 131 |
| Soft-Annealed | 36,000 | 60,000 | 35 | B-68 | 116 |
| As-Drawn | 72,000 | 87,000 | 10 | B-89 | 179 |
| CD-Stress Relief Annealed | 65,000 | 82,000 | 15 | B-86 | 167 |
| OUTSIDE AND INSIDE DIAMETER TOLERANCES FOR ROUND COLD-WORKED SEAMLESS TUBING PER ASTM A519 | ||||||||||
| Outside Diameter Size Range in | Thermal Treatment after Final Cold Work Producing Size | |||||||||
| Wall Thickness as Percent of OD | None, or not exceeding 1100°F. Nominal Temperature | Heated Above 1100°F. Nominal Temperature Without Accelerated Cooling | ||||||||
| OD, in | ID, in | OD, in | ID, in | |||||||
| Over | Under | Over | Under | Over | Under | Over | Under | |||
| Up to 0.499 | All | 0.004 | 0.000 | — | — | 0.005 | 0.002 | — | — | |
| 0.500-1.699 | All | 0.005 | 0.000 | 0.000 | 0.005 | 0.007 | 0.002 | 0.002 | 0.007 | |
| 1.700-2.099 | All | 0.006 | 0.000 | 0.000 | 0.006 | 0.006 | 0.005 | 0.005 | 0.006 | |
| 2.100-2.499 | All | 0.007 | 0.000 | 0.000 | 0.007 | 0.008 | 0.005 | 0.005 | 0.008 | |
| 2.500-2.899 | All | 0.008 | 0.000 | 0.000 | 0.008 | 0.009 | 0.005 | 0.005 | 0.009 | |
| 2.900-3.299 | All | 0.009 | 0.000 | 0.000 | 0.009 | 0.011 | 0.005 | 0.005 | 0.011 | |
| 3.300-3.699 | All | 0.010 | 0.000 | 0.000 | 0.010 | 0.013 | 0.005 | 0.005 | 0.013 | |
| 3.700-4.099 | All | 0.011 | 0.000 | 0.000 | 0.011 | 0.013 | 0.007 | 0.010 | 0.010 | |
| 4.100-4.499 | All | 0.012 | 0.000 | 0.000 | 0.012 | 0.014 | 0.007 | 0.011 | 0.011 | |
| 4.500-4.899 | All | 0.013 | 0.000 | 0.000 | 0.013 | 0.016 | 0.007 | 0.012 | 0.012 | |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| Nominal Wall Thickness | ||||||||||||||||||||
| DIA | SCH.5S | SCH.5 | SCH 10S | SCH.10 | SCH.20S | SCH.30 | SCH.40S | SCH.40 | SCH 60 | |||||||||||
| (A) | (B) | Meter MM | Wall Thk | Weight Kg/Mtr | Wall Thk | Weight Kg/Mtr | Wall Thk | Weight Kg/Mtr | Wall Thk | Weight Kg/Mtr | Wall Thk | Weight Kg/Mtr | Wall Thk | Weight Kg/Mtr | Wall Thk | Weight Kg/Mtr | Wall Thk | Weight Kg/Mtr | Wall Thk | Weight Kg/Mtr |
| 6 | 1/8 | 10.3 | 1 | 0.23 | 1.2 | 0.27 | 1.5 | 0.33 | 1.73 | 0.37 | ||||||||||
| 8 | 1/4 | 13.7 | 1.2 | 0.37 | 1.65 | 0.49 | 2 | 0.58 | 2.24 | 0.64 | ||||||||||
| 10 | 3/8 | 17.2 | 1.2 | 0.47 | 1.65 | 0.63 | 2 | 0.74 | 2.31 | 0.87 | ||||||||||
| 15 | 1/2 | 21.3 | 1.65 | 0.01 | 1.65 | 0.81 | 2.11 | 1.02 | 2.11 | 1.02 | 2.5 | 1.15 | 2.77 | 1.29 | ||||||
| 20 | 3/4 | 26.7 | 1.65 | 1.03 | 1.65 | 1.03 | 2.11 | 1.3 | 2.11 | 1.3 | 2.5 | 1.49 | 2.87 | 1.71 | ||||||
| 25 | 1 | 33.4 | 1.65 | 1.31 | 1.65 | 1.31 | 2.77 | 2.13 | 2.77 | 2.13 | 3 | 2.24 | 3.38 | 2.54 | ||||||
| 32 | 11/4 | 24.2 | 1.65 | 1.67 | 1.65 | 1.67 | 2.77 | 2.73 | 2.77 | 2.73 | 3 | 2.9 | 3.56 | 3.44 | ||||||
| 40 | 11/2 | 48.3 | 1.65 | 1.93 | 1.65 | 1.93 | 2.77 | 3.16 | 2.77 | 3.16 | 3 | 3.35 | 3.68 | 4.11 | ||||||
| 50 | 2 | 60.3 | 1.65 | 1.93 | 1.65 | 2.42 | 2.77 | 3.99 | 2.77 | 3.99 | 3.5 | 4.9 | 3.91 | 5.52 | ||||||
| 65 | 21/2 | 73 | 2.11 | 3.75 | 2.11 | 3.75 | 3.05 | 5.34 | 3.05 | 5.34 | 3.5 | 6 | 5.16 | 8.77 | ||||||
| 80 | 3 | 88.9 | 2.11 | 4.59 | 2.11 | 4.59 | 3.05 | 6.56 | 3.05 | 6.56 | 4 | 8.37 | 5.49 | 11.47 | ||||||
| 90 | 31/2 | 101.6 | 2.11 | 5.25 | 2.11 | 5.25 | 3.05 | 7.53 | 3.05 | 7.53 | 4 | 9.62 | 5.74 | 13.78 | ||||||
| 100 | 4 | 114.3 | 2.11 | 5.93 | 2.11 | 5.93 | 3.05 | 8.5 | 3.05 | 8.5 | 4.5 | 12.18 | 6.02 | 6.32 | ||||||
| 125 | 5 | 141.3 | 2.77 | 9.61 | 2.77 | 9.61 | 3.4 | 11.74 | 3.43 | 11.74 | 5 | 16.8 | 6.55 | 2210 | ||||||
| 150 | 6 | 168.3 | 2.77 | 11.47 | 2.77 | 11.47 | 3.4 | 14.04 | 3.43 | 14.04 | 5.5 | 22.08 | 7.11 | 28.69 | ||||||
| 200 | 8 | 219.1 | 2.77 | 15 | 2.77 | 15 | 3.76 | 20.77 | 3.76 | 20.27 | 6.35 | 33.82 | 7.04 | 37.38 | 8.18 | 43.2 | 10.81 | 53.9 | ||
| 250 | 10 | 273.1 | 3.4 | 22.95 | 3.4 | 22.95 | 4.19 | 28.2 | 4.19 | 28.2 | 6.35 | 42.41 | 7.8 | 51.81 | 9.27 | 61.22 | 12.2 | 82.8 | ||
| 300 | 12 | 323.9 | 3.96 | 31.72 | 4.19 | 33.6 | 4.57 | 36.54 | 4.57 | 36.54 | 6.35 | 50.48 | 8.38 | 66.2 | 9.53 | 75.01 | 10.31 | 80.94 | 14.27 | 110.62 |
| 350 | 14 | 355.6 | 3.96 | 34.86 | 4.78 | 41.99 | 6.35 | 55.53 | 7.92 | 68.95 | 9.53 | 82.58 | 9.53 | 82.58 | 11.13 | 96 | 15.06 | 128.42 | ||
| 400 | 16 | 406.4 | 4.19 | 42.2 | 4.78 | 48.07 | 6.35 | 63.61 | 7.92 | 79.03 | 9.53 | 94.7 | 9.53 | 94.7 | 12.7 | 125.2 | 16.66 | 162.59 | ||
| 450 | 18 | 457.2 | 4.19 | 47.46 | 4.78 | 54.15 | 6.35 | 71.69 | 7.92 | 89.1 | 11.13 | 124.32 | 9.53 | 106.83 | 14.27 | 158.27 | 19.05 | 209 | ||
| 500 | 2C | 508 | 4.78 | 60.23 | 5.54 | 69.7 | 6.35 | 79.76 | 9.53 | 118.93 | 12.7 | 157.51 | 9.53 | 118.9 | 15.06 | 185.89 | 2062 | 251.65 | ||
| 550 | 22 | 558.8 | 4.78 | 65.95 | 5.54 | 76.75 | 6.35 | 87.84 | 9.53 | 131.07 | 12.7 | 173.66 | 9.53 | 131.07 | 15.88 | 216.04 | 22.23 | 298.55 | ||
| 600 | 24 | 609.6 | 5.54 | 83.8 | 6.35 | 95.92 | 6.35 | 95.92 | 9.53 | 143.2 | 14.27 | 212.72 | 9.53 | 143.2 | 17.45 | 258.74 | 24.59 | 360.21 | ||
| 650 | 26 | 660.4 | 7.92 | 129.4 | 12.7 | 205.97 | 9.53 | 155.32 | ||||||||||||
| 700 | 28 | 711.2 | 7.92 | 139.47 | 12.7 | 222.13 | 15.88 | 276.48 | 9.53 | 167.44 | ||||||||||
| 750 | 3C | 762 | 6.35 | 120.15 | 7.92 | 149.55 | 7.92 | 149.55 | 12.7 | 238.28 | 15.88 | 296.68 | 9.53 | 179.56 | ||||||
| 800 | 32 | 812.8 | 7.92 | 159.62 | 12.7 | 254.44 | 15.88 | 316.88 | 9.53 | 191.69 | 17.48 | 348.11 | ||||||||
| 850 | 34 | 863.6 | 7.92 | 169.64 | 12.7 | 270.5 | 15.88 | 336.96 | 9.53 | 203.74 | 17.48 | 370.22 | ||||||||
| 900 | 36 | 914.4 | 7.92 | 179.77 | 12.7 | 286.75 | 15.88 | 357.28 | 9.53 | 215.93 | 19.05 | 427.09 | ||||||||
The versatility of CDS Tubing makes it indispensable across a wide spectrum of uses. In construction, it forms the sturdy skeletons of modern buildings, shopping complexes, and industrial warehouses. Beyond structural frames, it’s expertly fashioned into handrails, security grilles, and various architectural features. The industrial sector relies on it for manufacturing conveyor systems, machine guards, and agricultural equipment. Its appeal even extends to creative domains, where fabricators use it for furniture, artistic installations, and custom fabrications, proving its value as a fundamental component for both heavy-duty projects and intricate, imaginative designs.
Desta Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Addis Ababa, Ethiopia.
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