Luois Metals provides EN‑42 medium-carbon alloy steel bars to automotive, tool-making, and general engineering customers from our Houston plant. EN–42 bars are obtained to fulfill ASTM and European material specifications, providing consistent performance and machinability. We have various sizes and tempers in inventory, ready for heat treatment or machining. Luois Metals maintains strict dimensional and metallurgical specifications to ensure products are to customer requirements. With quick turnaround and professional advice, Luois Metals is your go-to supplier of alloy steel bars perfect for shafts, pins, studs, and mechanical parts used in various industrial applications.
Carbon Steel EN-42 Bars and Rods are manufactured from carefully balanced chemical compositions, typically containing carbon (0.40-0.50%), manganese (0.60-0.90%) and silicon (0.15-0.35%) These materials were provided it was durable, strength and wear resistance is . Mechanical properties of our EN-42 Bars and Rods include tensile strength of 600-800 MPa, yield strength of 350-450 MPa, and elongation of 14-20% These properties make them ideal for demanding applications high strength and resistance to wear and fatigue in various ranges Reliable operation is ensured in industrial environments
| 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 |
| Grade | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation in 100-150 mm(%) | Reduction in Area | Hardness |
| En42 | ≥380 | ≥210 | ≥25 | ≥50 | ≤111HB |
| Sizes Chart in Milimeter | Sizes in Inch | Thickness Chart In MM | Thickness Chart In Inches |
|---|---|---|---|
| 22 | 7/8 | 17 & 18 | 2/3 – 5/7 |
| 25 | 1 | 5 to 20 | 3/16 – 4/5 |
| 30 | 1-3/16 | 5 to 20 | 3/16 – 4/5 |
| 32 | 1-1/4 | 6 to 20 | 1/4 – 4/5 |
| 35 | 1-3/8 | 5 to 20 | 3/16 – 3/16 |
| 40 | 1-4/7 | 5 to 25 | 3/16 – 1 |
| 45 | 1-7/9 | 5 to 25 | 3/16 – 1 |
| 47 | 1-6/7 | 17,25 & 32 | 2/3, 1 & 1-1/4 |
| 50 | 2 | 5 to 32 | 3/16 – 1-1/4 |
| 55 | 2-1/16 | 5 to 25 | 3/16 – 1 |
| 57 | 2-1/4 | 32 | 1-1/4 |
| 60 | 2-3/8 | 5 to 35 | 3/16 – 1-3/8 |
| 63 | 2-1/2 | 10 to 30 | 3/8 – 1-3/16 |
| 65 | 2-5/9 | 10 to 30 & 35 | 3/8 – 1-3/16, & 1-3/8 |
| 70 | 2-3/4 | 6 to 25 & 40 | 1/4 – 1, & 1-4/7 |
| 75 | 3 | 8 to 25 | 5/16 – 1 |
| 80 | 3-1/8 | 8 to 20 | 5/16 – 4/5 |
| 90 | 3-1/2 | 8 to 20 | 5/16- 4/5 |
| 100 | 4 | 8, 10, 12 | 5/16, 3/8, 1/2 |
EN-42 Bars and Rods are commonly used in the automotive, engineering, and manufacturing industries for components like shafts, gears, and structural parts.
EN-42 Bars and Rods offer a tensile strength of 600-800 MPa and a yield strength of 350-450 MPa, providing high strength and durability.
Yes, we offer customized sizes and specifications to meet the specific needs of different industrial applications.
EN‑42 bars find application in shafts, axles, studs, spindles, and pins in automotive, textile, and general engineering. They can be used for making bolts, couplers, and medium-duty mechanical parts. EN‑42 is used in machine tools, agricultural machinery, and hydraulic assemblies. It is usually hardened or case-hardened for better wear resistance. This grade supports clean machining and moderate load applications. EN‑42 provides a balanced answer to parts that need improved strength, toughness, and machinability without the expense of high-alloy steel complexity.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Louis Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Houston, USA
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