ST52.3 Carbon Steel – Properties, Composition, Applications & Supply

ST52.3 carbon steel is a low alloy, high-strength structural steel grade defined under the DIN 17100 standard. Known for its excellent mechanical properties, high tensile strength, weldability, and impact resistance, ST52.3 is widely used in construction, heavy machinery, pipelines, and pressure vessel applications.

Its outstanding strength-to-weight ratio and formability make it a preferred choice for engineers and fabricators across industries.

📘 What is ST52.3 Carbon Steel?

ST52.3 (also written as St52-3) is a non-alloy structural steel with high strength and excellent ductility. The “ST” in the designation refers to structural steel, and “52” signifies a minimum yield strength of 355 MPa (for thicknesses <16 mm). The “.3” indicates improved toughness over earlier versions.

ST52.3 is typically supplied in normalized or hot-rolled condition and is well-suited for welding, machining, bending, and fabrication processes.

🧪 Chemical Composition of ST52.3

The low carbon content enhances weldability, while the presence of manganese and silicon improves tensile strength and toughness.

🔧 Mechanical Properties of ST52.3 Carbon Steel

These properties make ST52.3 a high-performance material for load-bearing and impact-resisting applications.

🔩 Key Features of ST52.3 Carbon Steel

• ✅ High yield and tensile strength

• ✅ Excellent weldability and machinability

• ✅ Superior impact resistance at low temperatures

• ✅ Good formability and surface finish

• ✅ Ideal for heavy-duty and structural applications

🏭 Applications of ST52.3 Steel

ST52.3 is used in a wide variety of engineering and industrial fields where strength, ductility, and reliability are critical. Common uses include:

• 🚧 Structural steel fabrication (beams, columns)

• 🏗️ Bridge and building construction

• 🛠️ Heavy machinery and equipment manufacturing

• ⛽ Oil & gas pipelines

• 🚢 Marine and offshore structures

• 🚚 Truck frames and trailers

• 🛢️ Pressure vessels and boiler parts

🔁 ST52.3 Equivalent Grades

Note: Always cross-verify equivalents based on application and mechanical requirements.

📏 Available Forms & Sizes

We supply ST52.3 steel in the following forms:

• Plates & Sheets (Hot Rolled)

• Round Bars & Flat Bars

• Pipes & Tubes

• Blocks & Forgings

• Cut-to-size and machined parts

Thickness: 6 mm – 300 mm
Width: Up to 3000 mm
Length: Up to 12 meters or custom lengths

All materials come with Mill Test Certificates (MTCs) and optional third-party inspection (TPI).

🇮🇳 ST52.3 Carbon Steel Supplier in India

We are a trusted stockist and supplier of ST52.3 steel plates, bars, and components in India. With ready stock in Mumbai, Pune, Chennai, Hyderabad, Delhi, and Ahmedabad, we provide fast delivery and support for both domestic and export orders.

✅ Why Choose Us?

• Large inventory in various sizes

• Competitive pricing & volume discounts

• Custom cutting, machining & processing

• Timely delivery with proper documentation

• ISO 9001:2015 certified company

📞 Contact Us

Need ST52.3 carbon steel price in India, material availability, or export-ready delivery?

📧 Email: sales@yourcompany.com
📞 Call: +91-XXXXXXXXXX
🌐 Website: www.yourcompany.com

Ask for a free technical datasheet or quotation for your project.

🔍 SEO Keywords Used

• ST52.3 carbon steel

• ST52.3 mechanical properties

• ST52.3 chemical composition

• DIN 17100 ST52.3

• ST52.3 steel plate supplier India

• ST52.3 equivalent grades

• ST52.3 round bar

• ST52.3 application

• High strength structural steel India

✅ FAQs – ST52.3 Carbon Steel

❓ What is ST52.3 steel used for?

ST52.3 is used in structural engineering, construction, pipelines, pressure vessels, and heavy machinery.

❓ Is ST52.3 weldable?

Yes, it offers excellent weldability due to its low carbon content and clean composition.

❓ What is the difference between ST52.3 and S355J2?

They are very similar in mechanical properties. S355J2 is an EN standard with impact testing at -20°C; ST52.3 is its DIN equivalent.

❓ Can ST52.3 be machined?

Yes, it can be machined, drilled, milled, and cut easily with standard tools.

🔚 Conclusion

ST52.3 carbon steel is a highly reliable, versatile, and cost-effective material used for heavy-duty structural and mechanical applications. With its high strength, ductility, and excellent weldability, ST52.3 remains a top choice for construction, fabrication, and industrial manufacturing.

As a trusted ST52.3 steel supplier in India, we offer high-quality materials, technical support, and tailored solutions for every project.

Would you like this blog formatted in HTML, converted into a PDF, or repurposed for social media or email marketing?