ST52 Round Bars – High Strength Carbon Steel Bars for Industrial Applications
ST52 Round Bars are widely used carbon steel bars known for their high yield strength, excellent toughness, and reliable performance in demanding industrial environments. These bars are manufactured as per DIN standards and are commonly supplied in round, hex, flat, and bright bar forms. Because of their strength and machinability, Carbon Steel ST 52 Round Bars are preferred across industries such as construction, heavy engineering, automotive, oil & gas, and power plants.
As a trusted ST 52 Carbon Steel Round Bar Manufacturer and Exporter, we supply high-quality material that meets international quality requirements. Our experience in handling industrial-grade steel ensures consistent performance, precise dimensions, and long service life.
What is ST52 Carbon Steel?
ST52 is a low-carbon, high-tensile structural steel grade specified under DIN 17100 / DIN 2391 standards. It offers a balanced combination of strength, ductility, and weldability, making it suitable for structural and mechanical applications.
The most commonly used version is ST52-3 Steel Rod, which provides enhanced mechanical strength while maintaining good formability.
Equivalent Grades:
- DIN 1.0580 Carbon Steel Bright Bar
- ST52-3
- DIN 2391 Low Carbon Steel Bar
- 1.0580 Steel Hex Bar
Key Benefits of ST52 Carbon Steel Round Bars
ST52 Carbon Steel Bars are selected when higher strength is required compared to standard mild steel, but without compromising weldability and machinability.
- High Yield Strength – Ideal for load-bearing applications
- Good Weldability – Suitable for fabrication and structural work
- Excellent Machinability – Easy to machine into components
- Uniform Mechanical Properties – Reliable and consistent performance
- Cost-Effective Alternative – Stronger than mild steel at competitive pricing
Because of these advantages, Carbon Steel ST 52 Round Bar & Rods are widely used in both heavy and light engineering projects.
ST52 Round Bars – Forms We Supply
We supply ST52 steel in multiple forms to suit different industrial needs:
- ST52 Round Bars
- ST 52 Carbon Hex Bar
- Carbon Steel ST52 Flat Bar
- Carbon ST 52 Bright Bars
- DIN 1.0580 Carbon Steel Bright Bar
- ST52-3 Steel Rod
- 1.0580 Steel Hex Bar
We are also recognized as ST.52 Mild Steel Round Bar Stockists in Mumbai, supplying material across India and for export markets.
ST52 Carbon Steel Bars – Specifications Chart
| Parameter | Details |
| Standard | DIN 17100 / DIN 2391 |
| Grade | ST52 / ST52-3 |
| Material Number | 1.0580 |
| Form | Round, Hex, Flat, Bright Bar |
| Size Range | 10 mm to 600 mm |
| Length | Random, Cut Length, Custom |
| Surface Finish | Black, Bright, Turned, Polished |
| Condition | Hot Rolled / Cold Drawn |
Chemical Composition of DIN 2391 Low Carbon Steel Bar
| Element | Composition |
| Carbon (C) | 0.20 – 0.22 |
| Manganese (Mn) | 1.20 – 1.60 |
| Silicon (Si) | ≤ 0.55 |
| Phosphorus (P) | ≤ 0.045 |
| Sulphur (S) | ≤ 0.045 |
Mechanical Properties of ST52 Steel
| Property | Value |
| Yield Strength | ≥ 355 MPa |
| Tensile Strength | 490 – 630 MPa |
| Elongation | ≥ 22% |
| Impact Resistance | Good |
| Hardness | Moderate |
ST52 Round Bars vs Mild Steel Bars
| Feature | ST52 Steel | Mild Steel |
| Yield Strength | Higher | Lower |
| Load Capacity | Excellent | Moderate |
| Weldability | Good | Excellent |
| Cost | Slightly Higher | Lower |
| Structural Use | Heavy Duty | Light to Medium |
High Yield Strength ST 52 Hex Bar Supplier in India - Manufacturing & Quality Assurance
As an experienced ST 52 Carbon Steel Round Bar Manufacturer and Exporter, we follow strict quality control processes:
- Raw material inspection
- Chemical and mechanical testing
- Dimensional accuracy checks
- Surface finish inspection
- Third-party inspection on request
Each Carbon Steel ST 52 Round Bar & Rod is supplied with proper test certificates to ensure traceability and compliance.
Why Engineers and Buyers Trust Us
- Proven experience in carbon steel products
- Consistent material quality
- Wide stock availability
- Competitive pricing
- Technical support for material selection
Our hands-on experience with DIN 1.0580 Carbon Steel Bright Bar and ST52-3 Steel Rod applications allows us to guide customers accurately based on real-world usage.
ST52 Round Bars are a dependable solution for industries that require strength, durability, and versatility. Whether it’s Carbon Steel ST 52 Round Bars, ST52-3 Steel Rods, or 1.0580 Steel Hex Bars, this grade delivers consistent performance across demanding applications.
With extensive experience, strong quality control, and a customer-first approach, we ensure that every ST 52 Carbon Steel Round Bar supplied meets real-world industrial expectations—not just specifications on paper.
Global Reach
ASC LLP boasts a robust global presence, committed to delivering unparalleled service and quality to clients around the world. Our dedication to prompt delivery and exceptional customer care sets us apart in the industry. Major corporations across the USA, Europe, Asia, and other regions place their trust in our high-quality ST52 Round Bars. This widespread trust underscores our reputation for reliability and excellence. By consistently meeting and exceeding the expectations of our international clientele, we continue to solidify our position as a leader in the global steel market.
Countries We Export To
UNITED STATES, EUROPE, UK, UAE, SAUDI ARABIA, OMAN, KUWAIT, JORDAN, QATAR, INDONESIA, MALAYSIA, BRAZIL, SPAIN, ITALY, FRANCE, GERMANY, BAHRAIN, SRI LANKA, AZERBAIJAN, AUSTRALIA, AUSTRIA, PHILIPPINES, TURKEY, RUSSIA, IRAN, IRAQ, CANADA, KOREA, JAPAN, YEMEN, FINLAND, ZIMBABWE, HUNGARY, PORTUGAL, VIETNAM, MOROCCO, THAILAND, SOUTH AFRICA, MEXICO, SINGAPORE, GREECE, KUWAIT, POLAND, NEW ZEALAND, SWEDEN, SWITZERLAND, BELGIUM, BHUTAN, BANGLADESH, TAIWAN, ROMANIA, CAMBODIA, KAZAKHSTAN, AFGHANISTAN.
