Based in Houston, USA, Luois Metals is a reputable manufacturer and supplier of Alloy Steel AISI 4140 Bars/Rods. Our speciality is offering premium alloy steel products that are designed to satisfy the needs of various industries, including heavy machinery, automotive, aerospace, and oil and gas. Our AISI 4140 bars and rods are renowned for their exceptional machinability, exceptional strength, and exceptional resistance to wear. Luois Metals is dedicated to providing dependable materials that function in demanding environments and critical applications, both domestically and internationally, with an emphasis on accuracy, quality control, and prompt delivery.
Chromium, molybdenum, and carbon make up Alloy Steel AISI 4140 Bars/Rods, which provides a great blend of strength, toughness, and hardenability. This alloy steel has a yield strength of up to 655 MPa and a tensile strength of 655–1080 MPa. It has good impact strength, wear resistance, and fatigue resistance. To obtain the required mechanical qualities, the material can be readily heated and tempered. A wide range of heavy-duty engineering and structural applications can benefit from AISI 4140’s good machinability and weldability.
| Dimensions | : | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Size | : | 5 mm To 500 mm |
| Diameter | : | 0.1 mm to 100 mm |
| Length | : | 100 mm To 3000 mm Long & Above |
| Finish | : | Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish |
| Tolerance | : | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements |
| Form | : | Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc. |
| Grade | C | Mn | Si | P | S | Fe | Mo | Ni | Cr |
| AISI / SAE 4140 | 0.38-0.43 | 0.75-1.00 | 0.20-0.35 | 0.035 max | 0.035 MAX | – | – | 0.15-0,25 | 0.80-1.10 |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.85 g/cm3 | 1432 ℃ | 560 | 460 | 21.50% |
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | EN |
| AISI / SAE 4140 | 1.7225 | G41400 | SCM 440 | BS 708M40 | 1.7223 |
Because of their strength, hardness, and resistance to wear and fatigue, alloy steel AISI 4140 bars and rods are frequently utilised in high-stress industrial settings. They are perfect for parts like drill collars, tool joints and valves in the oil and gas industry. They are used for crankshafts, axles, gears, and engine parts in the automotive and aerospace industries. They are also frequently found in defence systems, agricultural equipment, and hydraulic machinery. After heat treatment, AISI 4140 maintains good machinability and dimensional stability, making it ideal for applications needing high tensile strength and toughness.
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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