Riyadh, Saudi Arabia-based Sahil Metals is a manufacturer and exporter of Alloy Steel AISI 4145 bars, which are celebrated for their superior toughness, fatigue strength, and ability to resist high-pressure environments. AISI 4145 is a chromium-molybdenum steel of comparable chemistry to 4140 but specifically developed for higher fatigue strength and toughness. Manufactured with precision, Sahil Metals achieves bars that surpass specifications for critical applications. AISI 4145 bars are relied upon for heavy-duty mechanical equipment, downhole drilling equipment, and aerospace structures where performance under dynamic stress and temperature fluctuation is crucial.
Alloy Steel AISI 4145 has about 0.45% carbon, 0.8% chromium, 0.2% molybdenum, 0.7% manganese, and a trace of silicon. Quenched and tempered bar yields tensile strengths of up to 950 MPa and yield strengths of about 800 MPa, with high fatigue resistance and notch toughness. The alloy shows satisfactory behavior in cyclic loading and structural stability under thermal variations. It exhibits satisfactory hardenability and heat resistance, sustaining strength in high-temperature applications. Heat-treated for added strength, AISI 4145 provides dependability and predictability for vital load-carrying parts.
| 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 |
AISI 4145 bars find extensive usage in oil and gas downhole equipment, drill collars, and stabilizers in which resistance to fatigue is absolutely necessary. They are utilized as shafts and couplings in heavy machines, and in hydraulic systems that need high-pressure bearing capability. Aerospace applications use AISI 4145 to make structural fasteners and support rods. Automotive drivetrain parts and industrial gears also appreciate its fatigue strength. Its predictable performance under cycling loads and heat loads earns it a spot in rotary equipment, crankshafts, and heavy-duty mechanical assemblies where strength and endurance meet.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Sahil Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Riyadh, Saudi Arabia
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