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Yunus Sheets and Plates, based in Istanbul, Turkey, stands out as a top-notch manufacturer and supplier of premium 4340 Steel Sheet and Plate. With a keen emphasis on precision, durability, and ensuring customer satisfaction, this company provides steel products that not only meet international standards but also cater to the rigorous demands of various industries. Their 4340 Steel Sheet and Plate are celebrated for their remarkable strength, toughness, and outstanding wear resistance, making them perfect for heavy-duty applications. By consistently delivering quality, competitive pricing, and prompt delivery, Yunus Sheets and Plates has earned a reputation as a reliable partner for clients around the globe.
The 4340 Steel Sheet and Plate is a high-strength, low-alloy steel that includes controlled amounts of nickel, chromium, molybdenum, manganese, carbon, and silicon. This distinctive blend results in an impressive balance of strength, toughness, and fatigue resistance. On the mechanical side, 4340 steel boasts a tensile strength of up to 1080 MPa and a yield strength of about 740 MPa, along with excellent hardness and impact resistance. It retains exceptional toughness even under high stress and fluctuating temperatures, while also providing good machinability and weldability when properly treated, making it an excellent choice for critical engineering and structural applications.
| Specification | ASTM A829 / ASTM A6, SAE J404, AMS 6359/ 2252/2301 |
| Grade | AISI 4340/ EN24 |
| Value Added Services |
|
| Silicon | 0.15/0.35 |
| Chromium | 0.70/0.90 |
| Molybdenum | 0.20/0.30 |
| Carbon | 0.38/0.43 |
| Manganese | 0.65/0.85 |
| Phosphorus | 0.025 max. |
| Sulfur | 0.025 max. |
| Nickel | 1.65/2.00 |
| Copper | 0.35 max. |
| Alloy | Thickness Range | Condition/ Temper | Specification | Tensile Strength Ksi | Yield Strength Ksi |
AISI 4340 | 3/8 Inch to 8-1/8 Inch | STRESS RELIEVED | ASTM A829 / ASTM A6 SAE J404 | – | – |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
4340 steel sheet and plate offers many advantages including superior hardness, strength, and resistance to fatigue and fatigue. This compound is known for its high tensile strength and excellent performance in harsh conditions. It is highly weldable, allowing versatility in design and manufacturing. Also, 4340 steel exhibits good strength, which improves the performance of the heat treated product. These properties make it ideal for use in the aerospace, automotive, and heavy machinery industries, where durability and reliability are essential.
Industries that demand high strength, durability, and resistance to wear and fatigue widely utilize 4340 Steel Sheet and Plate. In the aerospace sector, they are extensively used for aircraft landing gear, engine components, and structural parts. The automotive industry relies on them for crankshafts, axles, and gears that require toughness and reliability. Furthermore, they are ideal for pressure vessels, heavy machinery, defense applications, and oil and gas equipment. Their ability to perform under extreme stress and in harsh environments makes them a preferred option for challenging industrial and engineering projects worldwide.
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