Ojas Pipes and Tubes, based in Kolkata, India, stands out as a top manufacturer and supplier of Alloy Steel AISI 4340 Bars and Rods. These products are celebrated for their exceptional strength, toughness, and performance in critical applications. Our AISI 4340 bars are crafted from high-quality raw materials and cutting-edge technology, making them perfect for demanding industries like aerospace, automotive, power generation, and defense. We provide tailored dimensions and finishes to cater to diverse industrial requirements, all while ensuring outstanding surface quality, precise dimensions, and quick delivery. Ojas Pipes and Tubes is dedicated to delivering top-notch alloy steel solutions throughout India and beyond.
AISI 4340 Alloy Steel Bars/Rods are made up of carbon (0.38–0.43%), nickel (1.65–2.00%), chromium (0.70–0.90%), molybdenum (0.20–0.30%), and manganese (0.60–0.80%), with iron as the primary element. This alloy boasts impressive tensile strength (850–1000 MPa), high yield strength (over 700 MPa), and remarkable toughness, even at elevated temperatures. The steel can be heat-treated to enhance hardness and wear resistance. With a Rockwell hardness of up to 36 HRC after quenching and tempering, AISI 4340 demonstrates excellent fatigue strength, machinability, and impact resistance.
| 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.
Alloy Steel AISI 4340 Bars and Rods are extensively used in high-stress mechanical components due to their remarkable strength and durability. You’ll find them in applications like crankshafts, gears, axle shafts, connecting rods, and landing gear components. In the aerospace sector, it’s a go-to choice for its impressive strength-to-weight ratio, while in the automotive industry, it’s essential for performance-critical drivetrain parts. This material is also utilized in oilfield tooling and heavy-duty machinery manufacturing. Its outstanding fatigue resistance and heat-treatability make it perfect for critical components that operate under high loads and cyclic conditions.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Rupal Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Delhi, India
Copyright 2024 Rupal Metals. All rights reserved
