Chuck Metals stands out as a top supplier and manufacturer of high-strength AISI 4340 alloy steel bars and rods right here in Singapore, catering to the Pulau Ujong area and beyond. Renowned for its exceptional metallurgical products, Chuck Metals focuses on delivering precision-engineered 4340 bars and rods that meet the highest standards for durability, strength, and performance. With cutting-edge production capabilities and rigorous quality control, the company guarantees that every bar and rod aligns with customer specifications across aerospace, automotive, defense, and heavy industrial sectors. Chuck Metals is dedicated to providing reliable, high-performance alloy steel products that can handle extreme operational demands and complex engineering challenges.
AISI 4340 is a high-tensile alloy steel primarily made of iron, featuring about 0.8% chromium, 1.8% nickel, 0.25% molybdenum, and 0.4% carbon. This unique blend strikes a perfect balance between toughness, strength, and wear resistance. Mechanically, 4340 steel bars boast a tensile strength that ranges from 745 to 1860 MPa and a yield strength of 470 to 1600 MPa, depending on the heat treatment process. They maintain impressive impact strength and fatigue resistance, even under pressure. The alloy’s hardness can be enhanced through heat treatment, reaching up to 53 HRC. These characteristics make it an excellent choice for demanding structural applications.
| Sizes | 2-100mm A/F |
|---|---|
| Tolerance | H9, H8, H10, K12, H13K9, K10, H11, H12, K11 |
| Round bar Sizes | Diameter: 3-~800mm |
| Technique | Hot Rolled, Cold Drawn, Cold Rolled, Forged, Rod |
| Processing | Bar cutting to 650mm |
| Surface | Bright, Hot Rolled Pickled, Sand Blasting Finished, Hairline, Cold Drawn, Polished suppliers |
| Condition | Hardened and tempered, annealed |
| Form | Precision Square, Ingot, T-Bar, Rod, Round, Welding Rod, I/H Bar, Flat Bar, Blocks, Rings, Rectangle, Hex (A/F), Hollow, Threaded, Profiles, Ground Bar, Channel Bar, Billet, Triangle, Round Rod, Half Round Bar, Forging etc. |
| Square bar Sizes | 4 to 100mm |
| Finish | Hot rolled annealed, Bright, smooth turned, Polish, Rough Turned, Cold (bright) drawn, centreless ground, Grinding, peeled, hot rolled, slit rolled edge, Centreless Ground & Black. |
| Flat bar Sizes | Width: 10 – 500 millimeter Thick.: 2 to 100 millimeter |
| Element | Composition |
|---|---|
| C% | 0.38/0.43 |
| Mn% | 0.60/0.80 |
| P% | 0.035 max |
| S% | 0.040 max |
| Si% | 0.20/0.35 |
| Ni% | 1.65/2.00 |
| Cr% | 0.70/0.90 |
| Mo% | 0.20/0.30 |
| Property | Value |
|---|---|
| Tensile Strength | 850-1000 N/mm 2 |
| Elongation | 13% |
| Hardness | 250-350 HB |
AISI 4340 alloy steel bars and rods find extensive use in industries that require high strength and toughness in extreme conditions. In the aerospace field, they are utilized in landing gear, shafts, and structural components. The automotive sector relies on 4340 steel for crankshafts, gears, and axles, thanks to its outstanding fatigue resistance. Oil and gas equipment, like drill collars and tool joints, benefit from its durability and toughness. In defense, it’s used for armor and essential parts in military vehicles. Its versatility also makes it a great fit for power generation, heavy machinery, and die forging applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Chuck Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Singapore, Singapore
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