Louis Metals stands out as a reliable manufacturer and supplier of top-notch Alloy Steel AISI 4145 Bars, proudly catering to clients in Houston, USA, and beyond. With years of expertise and a dedication to quality, we provide precision-engineered AISI 4145 bars that are renowned for their exceptional strength, durability, and performance even in the toughest conditions. Our state-of-the-art production facilities and rigorous quality control processes ensure that every product meets international standards. Whether you need them for heavy-duty industrial applications or critical engineering projects, Louis Metals is here to deliver trustworthy alloy steel solutions tailored just for you, along with dependable service and technical know-how you can rely on.
Alloy Steel AISI 4145 Bars are primarily made up of chromium (0.80–1.10%), molybdenum (0.15–0.25%), and manganese (0.75–1.00%), with a carbon content of about 0.43–0.48%. These elements contribute to their remarkable hardenability, strength, and wear resistance. Typically, you can expect mechanical properties like a tensile strength ranging from 850–1000 MPa, yield strength between 700–850 MPa, and an elongation of around 18%. The bars also showcase impressive toughness and fatigue resistance, making them ideal for heavy-duty applications. AISI 4145 maintains its high performance even after heat treatment processes such as quenching and tempering, ensuring a long service life and structural reliability.
| 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 |
| Grade: | AISI 4145 |
|---|---|
| Tensile Strength (ksi) min : | 140 |
| Elongation (% in 50mm) min: | 14 |
| Yield Strength 0.2% Proof (ksi) min: | 120 |
| Hardness: | – |
AISI 4145 Bars and Rods offer high strength, toughness, and wear resistance, making them ideal for heavy-duty applications.
Yes, they can be heat treated to enhance hardness, strength, and overall performance.
These bars and rods are commonly used in the automotive, oil and gas, and heavy machinery industries for parts like gears, shafts, and axles.
| Standard: | AISI 4145 |
|---|---|
| WERKSTOFF NR. | – |
| UNS | G41450 |
Alloy Steel AISI 4145 Bars are widely utilized in demanding engineering and industrial settings due to their outstanding mechanical strength and toughness. They find extensive use in the oil and gas sector for crafting drill collars, tool joints, and various downhole tools. In the construction and heavy equipment industries, these bars are essential for components that require high fatigue strength and impact resistance. The aerospace, automotive, and mining sectors also take advantage of AISI 4145 for parts like shafts, gears, and axles. Their ability to perform under high stress and in corrosive environments makes them a go-to choice for critical and high-performance systems.
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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