Sadiki Metals, based in Kinshasa, Congo, stands out as a top-notch manufacturer and supplier of premium metals, with a special focus on Alloy Steel AISI 4340 Bars and Rods. Known for their precision, durability, and reliability, Sadiki Metals meets a wide range of industrial needs, providing materials that adhere to strict international standards. With a strong dedication to quality, innovation, and customer satisfaction, the company guarantees that each batch of AISI 4340 bars and rods performs consistently. Engineers, fabricators, and manufacturers trust Sadiki Metals, which plays a vital role in supporting heavy-duty applications across the automotive, aerospace, and construction sectors in Congo and beyond.
Alloy Steel AISI 4340 bars and rods are primarily made of iron, containing 0.38–0.43% carbon, 0.7–0.9% manganese, 0.2–0.3% silicon, 1.65–2.0% nickel, 0.7–0.9% chromium, and 0.15–0.25% molybdenum. This specific blend boosts strength, toughness, and fatigue resistance. Mechanically, AISI 4340 showcases impressive tensile strength ranging from 930 to 1080 MPa, yield strength between 785 and 940 MPa, and hardness levels of 197 to 241 HB in its annealed state. It’s highly amenable to heat treatment, which enhances wear resistance, impact strength, and dimensional stability, making it perfect for critical applications that require high performance in extreme 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.
Industries that demand high-strength and durable materials widely utilize Alloy Steel AISI 4340 bars and rods. Typical applications include the production of aircraft landing gears, automotive crankshafts, gears, and components for heavy-duty machinery. Their remarkable toughness and fatigue resistance make them ideal for shafts, bolts, and structural elements that face high stress and cyclic loads. Furthermore, AISI 4340 finds its place in oil and gas equipment, defense machinery, and construction tools, where reliability in extreme conditions is essential. Sadiki Metals ensures that every bar and rod supplied meets these rigorous demands.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Sadiki Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Kinshasa, Congo
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