Chetan Steel, based in Delhi, is a trusted manufacturer and supplier of premium alloy steel products designed for heavy-duty industrial applications. With a strong focus on quality, precision, and performance, the company supplies materials that meet strict international standards. Among its high-strength offerings is the Alloy Steel AISI 4145 Bar, known for its excellent toughness and load-bearing capacity. Manufactured under rigorous quality control and advanced processing methods, these bars deliver consistent quality and long service life. Chetan Steel’s commitment to reliability makes it a preferred choice across India’s industrial sectors.
Alloy Steel AISI 4145 Bar is a chromium-molybdenum alloy steel with higher carbon content than 4140, offering increased strength and hardness. Chromium improves wear resistance, while molybdenum enhances toughness and hardenability. These bars exhibit high tensile strength, good impact resistance, and excellent fatigue performance. Proper heat treatment further enhances mechanical properties, making AISI 4145 bars suitable for highly stressed components requiring strength, durability, and resistance to shock and wear in demanding environments.
| 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 are widely used in heavy-duty and high-stress applications. Common uses include oil and gas drilling components, tool joints, shafts, gears, heavy-duty fasteners, couplings, and structural parts exposed to extreme loads. These bars are especially valued in the petroleum and power generation industries for their strength and reliability. Preferred by engineers and manufacturers, Alloy Steel AISI 4145 Bars provide excellent performance in shock-prone and high-load environments, ensuring long service life and dependable operation in critical industrial applications.
Chetan 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 Delhi, India.
Copyright 2025 Chetan Steel. All rights reserved
