Alloy steels are widely used in various industries due to their high strength, toughness, and wear resistance. However, not all alloy steels are created equal. Depending on your application, you may need a specific type of alloy steel that can meet your requirements and specifications. One of the most popular and versatile alloy steels is 4340 annealed Steel, which has a unique combination of properties and is suitable for many demanding applications.

What is 4340 annealed Steel

4340 steel is a low-alloy steel that contains nickel, chromium, and molybdenum. These elements give 4340 steel a high hardenability. It means it can be heat treated to achieve a wide range of hardness and strength levels. 4340 steel also has a high fatigue strength. It means it can withstand repeated stress and strain without breaking or cracking.

4340 annealed Steel is ideal for applications that require high strength, toughness, and resistance to impact. Such as gears, shafts, axles, bolts, and crankshafts. According to Online Metals, 4340 steel has a tensile strength of 108,000 psi, yield strength of 63,000 psi, and a Rockwell hardness of B28.

% Iron (Fe) Nickel (Ni) Chromium (Cr) Manganese (Mn) Carbon (C) Silicon (Si) Molybdenum (Mo) Phosphorus (P) Sulfur (S)
Minimum 95.10 1.65 0.7 0.65 0.38 0.15 0.2
Maximum 96.27 2 0.9 0.9 0.43 0.35 0.3 0.010 0.010

Why choose OTAI for 4340 steel supplier

At Otai, our commitment transcends being material handlers. Armed with proprietary technology and a dedication to continuous improvement, every order signifies our commitment to solving your challenges. We welcome your inquiries with open arms, ready to embark on a journey of precision and reliability together.

Elevate your projects with 4340 steel plate precision from Dongguan Otai Special Steel Co Ltd – where excellence is not just a promise but a practice.

As you can see, 4340 steel is a superior alloy steel that can meet your needs for high-strength applications. Compared to other alloy steels, 4340 steel has a higher hardenability, fatigue strength, and impact resistance. It make it more durable and reliable.

If you are looking for 4340 steel for sale, you have come to the right place. We are a leading supplier of 4340 steel products, and we can provide you with the best quality, price, and service. Contact us today to get a free quote or to learn more about our 4340 steel products. Thank you for reading our blog, and feel free to leave a comment or question below. We would love to hear from you.