Starc Metals is a reputable manufacturer and supplier of high-performance alloy steel products, proudly based in Canberra, Australia. With a strong focus on quality, precision, and innovation, Starc Metals specializes in crafting Alloy Steel AISI 4145 Bars—known for their exceptional strength, durability, and reliability in tough industrial settings. By utilizing advanced manufacturing techniques and rigorous quality control, the company consistently delivers top-notch bars designed to meet a wide range of client needs. Starc Metals caters to various industries, including oil and gas, construction, mining, and heavy machinery, establishing itself as a key partner for alloy steel solutions both in Australia and on the international stage.
Alloy Steel AISI 4145 Bars are low-alloy steels that contain chromium (0.80–1.10%), manganese (0.75–1.00%), and molybdenum (0.15–0.25%) to boost strength and hardenability. With a carbon content of about 0.43–0.48%, these bars provide excellent toughness and resistance to fatigue. Their typical mechanical properties include a tensile strength ranging from 850 to 1000 MPa, yield strength between 650 and 850 MPa, and impressive impact resistance, particularly when heat-treated. These bars also offer great machinability and weldability when the right procedures are followed. Their well-balanced composition guarantees high performance in critical, high-load situations.
| 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 extensively utilized in high-stress and heavy-duty applications due to their remarkable mechanical strength and toughness. Frequently found in the oil and gas sector, these bars are perfect for components like drill collars, tool joints, and subs. They also play a vital role in forging applications, gear manufacturing, shafts, and parts for high-load machinery. The steel’s capability to endure high-pressure and high-temperature conditions makes it a go-to material for structural and mechanical components in mining, power generation, and offshore platforms. Its versatility ensures reliability and durability in demanding operational environments.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Starc Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Canberra, Australia
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