Travis Steel, located in Canberra, Australia, stands out as a top manufacturer and supplier of high-quality Alloy Steel AISI 4145 Bars, designed for exceptional performance, durability, and strength. The company focuses on crafting precision-machined alloy steel bars that adhere to global standards, catering to a variety of industries including oil and gas, automotive, and heavy engineering. Known for their remarkable toughness, hardenability, and fatigue resistance, Travis Steel’s AISI 4145 Bars are perfect for high-stress applications. Thanks to advanced processing techniques, the company guarantees consistent mechanical properties and precise dimensions, ensuring reliability for industrial use.
Alloy Steel AISI 4145 Bar is a chromium-molybdenum low-alloy steel that generally contains 0.43–0.48% carbon, 0.70–1.00% chromium, 0.15–0.25% molybdenum, and 0.75–1.00% manganese. This specific composition results in high hardenability, strength, and wear resistance. Mechanically, it boasts a high tensile strength of around 850–1000 MPa, along with good impact toughness and strong fatigue resistance. It retains excellent ductility and machinability, even post-heat treatment, making it ideal for components that experience high torque and stress.
| Dimensions: | ASTM, ASME, DIN, BS, EN, IS, AMS, JIS, IBR & Other International Standards. |
|---|---|
| Standard: | ASTM A689, JIS G4801, DIN 17221, GB/T 18254, ASTM A295, JIS G4805, etc. |
| Alloy Steel AISI 4145 Round Bars Range: | Range – 3.17mm to 350mm dia |
| Alloy Steel AISI 4145 Round Bars Diameter: | 5mm-500mm (Customized size is acceptable) |
| Alloy Steel AISI 4145 Round Bars Length: | 1m-9m or according to the customer’s requirement |
| Type: | Round bar, rod, square bar, flat bar, hexagon bar, angle bar, channel bar, threaded bar |
| Alloy Steel AISI 4145 Round Bars Technique: | Forged/Hot Rolled/Cold Drawn/Peeled |
| Alloy Steel AISI 4145 Round Bars Surface: | bright round bar, pickled round bar, black round bar |
| Package Details: | Standard seaworthy package(wooden boxes package,pvc package, or other package) |
| Export Area: | USA, UAE, Europe, Asia, Middle East, Africa, South America |
| Grade | AISI 4145 | |
|---|---|---|
| Min. | Max | |
| C | 0.43 | 0.49 |
| Cr | 0.80 | 1.10 |
| Si | 0.15 | 0.35 |
| S | – | 0.040 |
| Mn | 0.85 | 1.10 |
| P | – | 0.035 |
| Mo | 0.15 | 0.25 |
| rade: | AISI 4145 |
|---|---|
| Tensile Strength (ksi) min : | 140 |
| Elongation (% in 50mm) min: | 14 |
| Yield Strength 0.2% Proof (ksi) min: | 120 |
| Hardness: | – |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| Standard: | AISI 4145 |
|---|---|
| WERKSTOFF NR. | – |
| UNS | G41450 |
Alloy Steel AISI 4145 Bars find extensive applications in the oil and gas exploration, mining, and mechanical engineering sectors. They are particularly suited for creating drill collars, shafts, tool joints, gear components, and heavy-duty machinery parts that require outstanding strength and durability. The material’s capacity to endure impact and fatigue in harsh environments makes it invaluable for pressure control and downhole tools. Moreover, AISI 4145 Bars are also utilized in automotive and construction projects where reliability, toughness, and long-lasting wear resistance are essential for performance and safety.
Travis 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 Canberra, Australia.
Copyright 2025 Travis Steel. All rights reserved
