Aiman Metals deals in excellent Alloy Steel AISI 4340 Bars and Rods in Kuala Lumpur, Malaysia. AISI 4340 is an alloy steel with high strength, nickel-chromium-molybdenum, that exhibits excellent toughness, fatigue strength, and wear strength. It exhibits superior mechanical properties in hardened and tempered states and finds extensive applications in aerospace, defense, and automotive sectors. Aiman Metals offers 4340 bars and rods in hot-rolled, forged, and heat-treated conditions to satisfy stringent engineering requirements. Our precision products are ideal for high-impact, high-stress applications where reliability and resistance to fatigue are critical.
AISI 4340 consists of 0.38–0.43% carbon, 0.7–0.9% manganese, 1.65–2.0% nickel, 0.7–0.9% chromium, and 0.2–0.3% molybdenum. Following heat treatment, it provides tensile strength up to 1080–1250 MPa, excellent toughness, and good fatigue strength. It possesses excellent hardenability and is capable of responding to tempering for enhanced ductility. It resists mechanical collapse in severe environments and retains strength at raised temperatures. AISI 4340 is also recognized for possessing good machinability and weldability under controlled conditions.
| 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.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Aiman Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Kuala lumpur, Malaysia
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