Maduka Metals stands out as a top-notch manufacturer and supplier of high-quality Alloy Steel AISI 4145 Bars, proudly based in Abuja, Nigeria. With a strong focus on precision engineering and exceptional quality, this company serves a variety of industries, including oil and gas, construction, automotive, and heavy machinery. By blending cutting-edge technology with expert craftsmanship, Maduka Metals creates durable, high-performance alloy steel bars that adhere to international standards. Renowned for their reliability, consistency, and prompt delivery, they have earned a solid reputation as a trusted partner for both local and global clients in search of premium alloy steel solutions.
Alloy Steel AISI 4145 Bars are made from chromium-molybdenum alloy steels, primarily featuring carbon (0.43–0.48%), manganese (0.75–1.00%), silicon (0.15–0.35%), chromium (0.80–1.10%), and molybdenum (0.15–0.25%). These bars boast an impressive mix of strength, toughness, and wear resistance. Their mechanical properties include a tensile strength of about 850–1000 MPa, a yield strength of around 655 MPa, and commendable impact resistance, even in colder temperatures. With remarkable hardenability and fatigue strength, they are perfect for demanding mechanical and structural applications that require durability and performance under pressure.
| 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 situations where strength and toughness are essential. They’re commonly found in the production of drill collars, tool joints, shafts, gears, axles, and other components that face heavy loads and impacts. In the oil and gas industry, these bars are the go-to choice for downhole tools and drilling equipment, thanks to their superior hardenability and wear resistance. Additionally, they are used in the automotive, construction, and machinery sectors to create components that need to be reliable, fatigue-resistant, and capable of enduring extreme operating conditions over a long service life.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Maduka Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Abuja, Nigeria
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