Starc Metals, located in Canberra, Australia, has built a solid reputation as a reliable manufacturer and supplier of top-notch Alloy Steel AISI 4340 Bars and Rods. They’re well-known for their precision-engineered metal products, catering to a variety of industrial sectors with a strong focus on quality and performance. The AISI 4340 bars and rods they produce are celebrated for their impressive strength, toughness, and wear resistance, making them perfect for critical applications. By employing advanced manufacturing techniques and rigorous quality control measures, Starc Metals guarantees that each product adheres to both national and international standards, providing dependable and durable solutions tailored to meet the unique needs of clients across Australia and beyond.
The Alloy Steel AISI 4340 Bars and Rods are made up of essential elements like carbon (0.38–0.43%), manganese (0.60–0.80%), chromium (0.70–0.90%), nickel (1.65–2.00%), and molybdenum (0.20–0.30%). This well-balanced composition boosts hardenability and strength. In terms of mechanical properties, AISI 4340 boasts a tensile strength ranging from 930 to 1080 MPa and a yield strength of about 835 MPa, along with outstanding toughness and fatigue resistance. The alloy can be heat treated to reach high strength levels while still maintaining ductility and impact resistance, making it ideal for demanding applications where performance and durability are crucial.
| 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 |
Alloy Steel AISI 4340 is commonly used in aerospace, automotive, and heavy machinery applications due to its excellent strength, toughness, and fatigue resistance. It's ideal for manufacturing shafts, gears, and structural components.
AISI 4340 offers high tensile strength, excellent toughness, and good wear resistance. It is known for its ability to withstand high-stress and high-impact conditions.
Yes, AISI 4340 can be heat-treated to enhance its hardness and strength, making it highly adaptable for different engineering requirements.
AISI 4340 Bars and Rods find extensive use in industries that require high strength, toughness, and fatigue resistance. Common applications include aerospace components like landing gear and engine parts, automotive parts such as crankshafts and gears, and high-stress structural components in the defense and oil & gas sectors. Their remarkable mechanical properties also make them suitable for forging applications and heavy-duty shafts. Thanks to their capacity to be heat treated to various strength levels, AISI 4340 bars and rods are a popular choice for applications that demand long-term reliability under high loads, impact, and abrasive conditions.
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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