Marzouk Steel, located in Tunis, Tunisia, has built a solid reputation as a reliable manufacturer and supplier of carbon steel EN-42 bars, catering to the automotive, engineering, and industrial sectors. With state-of-the-art production facilities and rigorous quality control measures, Marzouk Steel guarantees high dimensional accuracy, consistent mechanical properties, and an excellent surface finish. The company offers customized sizes, prompt delivery, and dependable technical support. Their EN-42 bars are specifically designed for applications that demand good strength, toughness, and machinability, making them perfect for shafts, axles, gears, and other components where durability and reliable performance are crucial.
Carbon Steel EN-42 Bars consist of mostly carbon (0.38-0.45%) and a balanced composition of manganese (0.60-0.90%), silicon (0.17-0.37%), and minute traces of phosphorus and sulfur. These constituents impart the steel superior strength, hardness, and resistance to wear. The mechanical characteristics of EN-42 bars consist of tensile strength between 560 and 700 MPa and yield strength of approximately 380 MPa, which is suitable for high-stress applications. The steel shows good ductility, toughness, and is machinable and heat-treatable and provides versatility for use in diverse engineering applications.
| Dimensions | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Round Bars | 3.0 – 50.8 mm, Over 50.8 – 300mm |
| Rectangular Bars | 6.35 x 12.7mm,6.35 x 25.4mm,12.7 x 25.4mm |
| Hex Bars | AF5.8mm–17mm |
| Square Bars | AF2mm – 14mm, AF6.35mm,9.5mm,12.7mm, 15.98mm,19.0mm, 25.4mm |
| Flat Bars | 1/2” to 10” in thickness range of 2mm to 150mm, |
| Finish | Bright, Polish & Black |
| Length | 1 to 6 Meters, Custom Cut Lengths |
| Form | Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc. |
Grade | Chemical composition %: | |||||||
| C | Si | Mn | S | P | Cr | Ni | Cu | |
| En42 | 0.17-0.24 | 0.17-0.37 | 0.7-1.00 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.25 | ≤0.25 |
| Chemical Composition | Application | |||||||||
| C | Si | Mn | P≤ | S≤ | CU≤ | Cr | Ni | Mo | V | |
| 0.43-0.49 | 0.15-0.35 | 0.60-0.90 | 0.03 | 0.035 | machine structural use, hand tools | |||||
| 0.53-0.59 | 0.17-0.37 | 0.50-0.80 | 0.03 | 0.03 | 0.2 | 0.25 | 0.3 | hand tools | ||
| 0.57-0.63 | 0.17-0.37 | 0.50-0.80 | 0.03 | 0.03 | 0.2 | 0.25 | 0.3 | hand tools | ||
| 0.13-0.18 | 0.15-0.35 | 0.60-0. | ||||||||
ULTIMATE TENSILE STRENGTH, S. (MPA) | 621 |
|---|---|
Modulus of elasticity, E (Gpa) | 204 |
Fatigue strength coefficient, of (Mpa) | 948 |
Fatigue strength exponent, b | -0.092 |
Fatigue ductility coeffient ,ef | 0.26 |
Fatigue ductility exponent,c | -0.445 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| Size Table in MM | Chucked true to Outside Dia in MM | Chucked true to Inside Dia in MM and Inch | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Outside Dia, Milimeter | Inside Dia, Milimeter | Maximum Outside Dia, Milimeter | Minimum. Inside Dia, Milimeter | Maximum Outside Dia, Inches. | Minimum. Inside Dia, Inches | Maximum Outside Dia, Milimeter | Minimum. Inside Dia, Milimeter | Maximum Outside Dia, Inches | Minimum. Inside Dia, Inches |
| 32 | 20 | 31 | 21.9 | 1.220 | 0.862 | 30 | 21 | 1.185 | 0.827 |
| 32 | 16 | 31 | 18 | 1.220 | 0.709 | 30 | 17 | 1.181 | 0.669 |
| 36 | 25 | 35 | 26.9 | 1.378 | 1.059 | 34.1 | 26 | 1.343 | 1.024 |
| 36 | 20 | 35 | 22 | 1.378 | 0.866 | 34 | 21 | 1.339 | 0.827 |
| 36 | 16 | 35 | 18.1 | 1.378 | 0.713 | 33.9 | 17 | 1.335 | 0.669 |
| 40 | 28 | 39 | 29.9 | 1.535 | 1.177 | 38.1 | 29 | 1.500 | 1.142 |
| 40 | 25 | 39 | 27 | 1.535 | 1.063 | 38 | 26 | 1.496 | 1.024 |
| 40 | 20 | 39 | 22.1 | 1.535 | 0.870 | 37.9 | 21 | 1.492 | 0.827 |
| 45 | 32 | 44 | 33.9 | 1.732 | 1.335 | 43.1 | 33 | 1.697 | 1.299 |
| 45 | 28 | 44 | 30 | 1.732 | 1.181 | 43 | 29 | 1.693 | 1.142 |
| 45 | 20 | 44 | 22.2 | 1.732 | 0.874 | 42.8 | 21 | 1.685 | 0.827 |
| 50 | 36 | 49 | 38 | 1.929 | 1.496 | 48 | 37 | 1.890 | 1.457 |
| 50 | 32 | 49 | 34.1 | 1.929 | 1.343 | 47.9 | 33 | 1.886 | 1.299 |
| 50 | 25 | 49 | 27.2 | 1.929 | 1.071 | 47.8 | 26 | 1.882 | 1.024 |
| 56 | 40 | 55 | 42 | 2.165 | 1.654 | 54 | 41 | 2.126 | 1.614 |
| 56 | 36 | 55 | 38.1 | 2.165 | 1.500 | 53.9 | 37 | 2.122 | 1.457 |
| 56 | 28 | 55 | 30.3 | 2.165 | 1.193 | 53.7 | 29 | 2.114 | 1.142 |
| 63 | 50 | 62 | 51.9 | 2.441 | 2.043 | 61.1 | 51 | 2.406 | 2.008 |
| 63 | 45 | 62 | 47 | 2.441 | 1.850 | 61 | 46 | 2.402 | 1.811 |
| 63 | 40 | 62 | 42.2 | 2.441 | 1.661 | 60.8 | 41 | 2.394 | 1.614 |
| 63 | 36 | 62 | 38.3 | 2.441 | 1.508 | 60.7 | 37 | 2.390 | 1.457 |
| 63 | 32 | 62 | 34.4 | 2.441 | 1.354 | 60.6 | 33 | 2.386 | 1.299 |
| 71 | 56 | 69.9 | 58 | 2.752 | 2.283 | 68.9 | 57 | 2.713 | 2.244 |
| 71 | 45 | 69.9 | 47.3 | 2.752 | 1.862 | 68.6 | 46 | 2.701 | 1.811 |
| 71 | 40 | 69.9 | 42.4 | 2.752 | 1.669 | 68.5 | 41 | 2.697 | 1.614 |
| 71 | 36 | 69.9 | 38.5 | 2.752 | 1.516 | 68.4 | 37 | 2.693 | 1.457 |
| 75 | 60 | 73.8 | 62 | 2.906 | 2.441 | 72.8 | 61 | 2.866 | 2.402 |
| 75 | 50 | 73.8 | 52.2 | 2.906 | 2.055 | 72.6 | 51 | 2.858 | 2.008 |
| 75 | 40 | 73.8 | 42.5 | 2.906 | 1.673 | 72.3 | 41 | 2.846 | 1.614 |
| 80 | 63 | 78.8 | 65 | 3.102 | 2.559 | 77.8 | 64 | 3.063 | 2.520 |
| 80 | 50 | 78.8 | 52.4 | 3.102 | 2.053 | 77.4 | 51 | 3.047 | 2.008 |
| 80 | 45 | 78.8 | 47.5 | 3.102 | 1.870 | 77.3 | 46 | 3.043 | 1.811 |
| 80 | 40 | 78.8 | 42.6 | 3.102 | 1.677 | 77.2 | 41 | 3.039 | 1.614 |
| 85 | 67 | 83.7 | 69.1 | 3.295 | 2.720 | 82.6 | 68 | 3.252 | 2.677 |
| 85 | 55 | 83.7 | 57.4 | 3.295 | 2.260 | 82.3 | 56.0 | 3.240 | 2.205 |
| 85 | 45 | 83.7 | 47.6 | 3.295 | 1.874 | 82.1 | 46.0 | 3.232 | 1.811 |
| 90 | 71 | 88.6 | 73.1 | 3.488 | 2.878 | 87.6 | 72.1 | 3.449 | 2.839 |
These EN-42 carbon steel bars find extensive use in automotive components, machinery shafts, gears, axles, and structural parts that require both durability and strength. They are also utilized in agricultural machinery, industrial equipment, and fabricated mechanical parts where toughness and machinability are key. Thanks to their well-rounded mechanical properties and reliability, EN-42 bars ensure long-lasting performance in demanding industrial, automotive, and engineering 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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