Marzouk Steel, located in Tunis, Tunisia, has built a solid reputation as a reliable manufacturer and supplier of carbon steel EN 10216-1 pipes, serving the construction, industrial, and engineering sectors. With state-of-the-art production facilities and rigorous quality control measures, Marzouk Steel guarantees precise dimensions, consistent mechanical properties, and top-notch surface quality. The company offers tailored pipe solutions, prompt delivery, and expert technical support. Their EN 10216-1 pipes are specifically designed for medium and low-pressure applications, providing dependable strength, durability, and excellent weldability, making them perfect for piping systems in industrial plants, water distribution, and structural projects.
The Carbon Steel EN 10216-1 Pipe is predominantly comprised of carbon, with a slight presence of manganese, phosphorus, sulfur, and silicon. The chemical content ensures proper strength and the possibility of handling the pipe in highly pressurized and hot temperature conditions.Properties include minimum yield strength of 235 MPa as well as a tensile strength between 360 to 510 MPa. The pipe elongates for excellent elongation with 20%, which can perform very challenging services like in boilers and pressure vessels. This material has good performances in harsher industrial applications.
Standard: DIN2448, DIN1629, DIN17175, EN10255, EN10216
Grade: ST37, ST44, St45, ST52, S355JR
Size: From 1/2″ to 32″
Wall Thickness: 2-60mm
Length: 4M to 12 M
| Grade | C | Si | Mn | P | S | Cr | Ni | Cu |
| St37.0Â | =0.17Â | 0.17-0.37Â | 0.35-0.65Â | =0.025Â | =0.020Â | =0.25Â | =0.25Â | =0.25Â |
| St44.0Â | =0.21Â | 0.17-0.37Â | 0.50-0.80Â | =0.025Â | =0.020Â | =0.25Â | =0.25Â | =0.25Â |
| St55Â | 0.33-0.41Â | 0.17-0.37Â | 0.50-0.80Â | =0.025Â | =0.020Â | =0.25Â | =0.25Â | =0.25Â |
| St52.0Â | =0.22Â | =0.55Â | =1.60Â | =0.025Â | =0.020Â | =0.25Â | =0.25Â | =0.25Â |
| Pipe types | Steel grades | Upper yield limit Re min for wall thickness in mm min | Tensile strength Rm MPa | Elongation A% min | |||
| ROUND SEAMLESS CARBON STEEL PIPES FOR SPECIAL REQUIREMENTS St37.0, St44.0, St52.0 according to DIN 1629 | 16 | 16 40 | 40 65 | 1 | t | ||
| St37.0 | 235 | 225 | 215 | 350-480 | 25 | 23 | |
| St44.0 | 275 | 265 | 255 | 420-550 | 21 | 19 | |
| St52.0 | 355 | 345 | 335 | 50-650 | 21 | 19 | |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
EN 10216-1 carbon steel pipes are seamless, high-quality products manufactured in accordance with EN 10216-1 standards for general engineering and industrial use. Their chemical makeup includes carbon, manganese, and trace elements, ensuring good weldability, strength, and ductility. On the mechanical side, these pipes deliver reliable tensile strength, adequate yield strength, and sufficient toughness for medium and low-pressure applications. This blend of strength and ductility makes them ideal for industrial pipelines, fluid transport systems, and structural frameworks, ensuring long-lasting performance and operational safety.
| Designation of Diameter | O/D | 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 | Â | Â | 1.2 | 0.27 | Â | Â | 1.5 | 0.33 | Â | Â | 1.73 | 0.37 | Â | Â | Â | Â |
| 8 | 1/4 | 13.7 | 1.2 | 0.37 | Â | Â | 1.65 | 0.49 | Â | Â | 2 | 0.58 | Â | Â | 2.24 | 0.64 | Â | Â | Â | Â |
| 10 | 3/8 | 17.2 | 1.2 | 0.47 | Â | Â | 1.65 | 0.63 | Â | Â | 2 | 0.74 | Â | Â | 2.31 | 0.87 | Â | Â | Â | Â |
| 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 | Â | Â | 2.77 | 1.29 | Â | Â | Â | Â |
| 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 | Â | Â | 2.87 | 1.71 | Â | Â | Â | Â |
| 25 | 1 | 33.4 | 1.65 | 1.31 | 1.65 | 1.31 | 2.77 | 2.13 | 2.77 | 2.13 | 3 | 2.24 | Â | Â | 3.38 | 2.54 | Â | Â | Â | Â |
| 32 | 11/4 | 24.2 | 1.65 | 1.67 | 1.65 | 1.67 | 2.77 | 2.73 | 2.77 | 2.73 | 3 | 2.9 | Â | Â | 3.56 | 3.44 | Â | Â | Â | Â |
| 40 | 11/2 | 48.3 | 1.65 | 1.93 | 1.65 | 1.93 | 2.77 | 3.16 | 2.77 | 3.16 | 3 | 3.35 | Â | Â | 3.68 | 4.11 | Â | Â | Â | Â |
| 50 | 2 | 60.3 | 1.65 | 1.93 | 1.65 | 2.42 | 2.77 | 3.99 | 2.77 | 3.99 | 3.5 | 4.9 | Â | Â | 3.91 | 5.52 | Â | Â | Â | Â |
| 65 | 21/2 | 73 | 2.11 | 3.75 | 2.11 | 3.75 | 3.05 | 5.34 | 3.05 | 5.34 | 3.5 | 6 | Â | Â | 5.16 | 8.77 | Â | Â | Â | Â |
| 80 | 3 | 88.9 | 2.11 | 4.59 | 2.11 | 4.59 | 3.05 | 6.56 | 3.05 | 6.56 | 4 | 8.37 | Â | Â | 5.49 | 11.47 | Â | Â | Â | Â |
| 90 | 31/2 | 101.6 | 2.11 | 5.25 | 2.11 | 5.25 | 3.05 | 7.53 | 3.05 | 7.53 | 4 | 9.62 | Â | Â | 5.74 | 13.78 | Â | Â | Â | Â |
| 100 | 4 | 114.3 | 2.11 | 5.93 | 2.11 | 5.93 | 3.05 | 8.5 | 3.05 | 8.5 | 4.5 | 12.18 | Â | Â | 6.02 | 6.32 | Â | Â | Â | Â |
| 125 | 5 | 141.3 | 2.77 | 9.61 | 2.77 | 9.61 | 3.4 | 11.74 | 3.43 | 11.74 | 5 | 16.8 | Â | Â | 6.55 | 2210 | Â | Â | Â | Â |
| 150 | 6 | 168.3 | 2.77 | 11.47 | 2.77 | 11.47 | 3.4 | 14.04 | 3.43 | 14.04 | 5.5 | 22.08 | Â | Â | 7.11 | 28.69 | Â | Â | Â | Â |
| 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 | Â | Â | 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 | Â | Â | 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 | Â | Â | 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 | Â | Â | 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 | Â | Â | 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 | Â | Â | 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 | Â | Â | 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 | Â | Â | 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 | Â | Â | Â | Â | Â | Â | 7.92 | 129.4 | 12.7 | 205.97 | Â | Â | 9.53 | 155.32 | Â | Â | Â | Â |
| 700 | 28 | 711.2 | Â | Â | Â | Â | Â | Â | 7.92 | 139.47 | 12.7 | 222.13 | 15.88 | 276.48 | 9.53 | 167.44 | Â | Â | Â | Â |
| 750 | 3C | 762 | 6.35 | 120.15 | Â | Â | 7.92 | 149.55 | 7.92 | 149.55 | 12.7 | 238.28 | 15.88 | 296.68 | 9.53 | 179.56 | Â | Â | Â | Â |
| 800 | 32 | 812.8 | Â | Â | Â | Â | Â | Â | 7.92 | 159.62 | 12.7 | 254.44 | 15.88 | 316.88 | 9.53 | 191.69 | 17.48 | 348.11 | Â | Â |
| 850 | 34 | 863.6 | Â | Â | Â | Â | Â | Â | 7.92 | 169.64 | 12.7 | 270.5 | 15.88 | 336.96 | 9.53 | 203.74 | 17.48 | 370.22 | Â | Â |
| 900 | 36 | 914.4 | Â | Â | Â | Â | Â | Â | 7.92 | 179.77 | 12.7 | 286.75 | 15.88 | 357.28 | 9.53 | 215.93 | 19.05 | 427.09 | Â | Â |
| Designation of Diameter | O/D | Nominal Wall Thickness | ||||||||||||||
| DIA | SCH 80 S | SCH 80 | SCH 100 | SCH 120 | SCH. 140 | SCH.160 | SCH.XXS | |||||||||
| (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 |
| 6 | 1/8 | 10.3 | 2.41 | 0.47 | ||||||||||||
| 8 | 1/4 | 13.7 | 3.02 | 0.82 | ||||||||||||
| 10 | 3/8 | 17.2 | 3.2 | 1.12 | ||||||||||||
| 15 | 1/2 | 21.3 | 3.73 | 1.64 | 4.75 | 1.97 | 7.47 | 2.59 | ||||||||
| 20 | 3/4 | 26.7 | 3.91 | 2.93 | 5.54 | 2.93 | 7.82 | 3.69 | ||||||||
| 25 | 1 | 33.4 | 4.55 | 3.29 | 6.35 | 4.3 | 9.09 | 5.53 | ||||||||
| 32 | 11/4 | 24.2 | 4.85 | 4.53 | 6.35 | 5.69 | 9.7 | 7.88 | ||||||||
| 40 | 11/2 | 48.3 | 5.08 | 5.49 | 7.14 | 7.35 | 10.16 | 9.69 | ||||||||
| 50 | 2 | 60.3 | 5.54 | 7.6 | 8.71 | 11.26 | 11.07 | 13.65 | ||||||||
| 65 | 21/2 | 73 | 7.01 | 11.59 | 9.53 | 15.15 | 14.02 | 20.72 | ||||||||
| 80 | 3 | 88.9 | 7.62 | 15.51 | 11.13 | 21.67 | 15.24 | 28.11 | ||||||||
| 90 | 31/2 | 101.6 | 8.08 | 18.92 | 16.15 | 34.56 | ||||||||||
| 100 | 4 | 114.3 | 8.56 | 22.66 | 11.13 | 28.75 | 13.49 | 34.05 | 17.12 | 41.66 | ||||||
| 125 | 5 | 141.3 | 9.53 | 31.44 | 12.7 | 40.9 | 15.88 | 49.87 | 19.05 | 58.31 | ||||||
| 150 | 6 | 168.3 | 10.97 | 43.21 | 14.27 | 55.03 | 18.24 | 68.53 | 21.95 | 79.1 | ||||||
| 200 | 8 | 219.1 | 12.7 | 65.63 | 15.06 | 76.93 | 18.24 | 91.73 | 20.62 | 102.47 | 23.01 | 112.97 | 22.23 | 108 | ||
| 250 | 10 | 273.1 | 12.7 | 82.8 | 15.06 | 97.27 | 18.24 | 116.38 | 21.41 | 134.9 | 25.4 | 157.51 | 28.58 | 174.95 | 25.4 | 155.5 |
| 300 | 12 | 323.9 | 12.7 | 98.95 | 17.45 | 133.88 | 21.41 | 162.14 | 25.4 | 189.82 | 28.58 | 211.31 | 33.32 | 242.4 | 25.4 | 189.82 |
| 350 | 14 | 355.6 | 12.7 | 109.04 | 19.05 | 160.54 | 23.8 | 197.74 | 27.76 | 227.88 | 31.75 | 257.47 | 35.71 | 286.04 | ||
| 400 | 16 | 406.4 | 12.7 | 125.2 | 21.41 | 206.4 | 26.19 | 249.34 | 30.94 | 290.88 | 36.53 | 338.32 | 40.46 | 370.74 | ||
| 450 | 18 | 457.2 | 12.7 | 141.35 | 23.8 | 258.29 | 29.36 | 314.54 | 34.93 | 369.34 | 39.67 | 414.74 | 45.24 | 466.67 | ||
| 500 | 2C | 508 | 12.7 | 157.51 | 26.19 | 315.97 | 32.54 | 387.41 | 38.1 | 448.3 | 44.45 | 515.94 | 49.99 | 573.31 | ||
| 550 | 22 | 558.8 | 12.7 | 173.66 | 28.57 | 379.7 | 34.92 | 457.83 | 41.27 | 535.17 | 47.62 | 609.3 | 53.97 | 682.57 | ||
| 600 | 24 | 609.6 | 12.7 | 189.82 | 30.94 | 448.3 | 38.89 | 555.76 | 46.02 | 649.44 | 52.37 | 730.72 | 59.51 | 819.7 | ||
These EN 10216-1 carbon steel pipes are commonly used in water supply systems, low-pressure pipelines, structural supports, and various industrial applications. They excel at transporting water, gas, and other fluids where moderate pressure and strength are required. Additionally, these pipes find their place in fabrication projects, scaffolding, and mechanical systems that demand reliable, cost-effective, and durable piping solutions. Thanks to their excellent weldability, strength, and consistent performance, EN 10216-1 pipes offer long-lasting, efficient, and safe service across a wide array of industrial and construction applications.
Marzouk 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 Tunis, Tunisia.
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