Overview of DIN 17100 ST52-3 Carbon and Low-Alloy High-Strength Steel Plate
DIN 17100 ST52-3 is a low-alloy carbon structural steel grade used for high-stress applications in construction and engineering. It is known for its excellent strength, weldability, and toughness, making it suitable for various structural components.
Chemical Composition and Mechanical Properties of ST52-3 Steel
Chemical Composition:
| Element | Percentage |
| Carbon (C) | ≤0.22% (for thickness ≤30 mm) |
| Manganese (Mn) | 1.60% max |
| Phosphorus (P) | ≤0.040% |
| Sulfur (S) | ≤0.040% |
| Silicon (Si) | 0.55% max |
Mechanical Properties:
| Property | Value |
| Yield Strength (min) | 355 MPa (51 ksi) |
| Tensile Strength | 510 – 680 MPa (74 – 98 ksi) |
| Elongation in 50 mm (min) | 21% |
Applications and Industries Utilizing ST52-3 Steel Plates
ST52-3 steel plates are widely used in various industries due to their high strength and versatility:
- Construction: Used in building frames, bridges, and other infrastructure projects.
- Heavy Machinery: Structural components for cranes, earth-moving equipment, and other machinery.
- Automotive Industry: Parts that require high strength-to-weight ratios.
- Shipbuilding: Used in the construction of ships and marine structures.
- General Fabrication: Suitable for various structural applications where moderate to high strength is required.
Corrosion Resistance and Performance Characteristics of ST52-3
- Corrosion Resistance: Moderate corrosion resistance; protective coatings are recommended for use in corrosive environments.
- Performance Characteristics: Known for good toughness, ductility, and weldability, making it suitable for various structural applications.
Manufacturing Processes for DIN 17100 ST52-3 Steel Plates
ST52-3 steel plates are typically manufactured through the following processes:
- Hot Rolling: The steel is rolled at high temperatures to achieve desired thicknesses.
- Cold Rolling: Further processing may be done to improve surface finish.
Available Dimensions:
| Thickness Range | Width Range | Length Range |
| 5 mm – 150 mm | Up to 2500 mm | Up to 12000 mm |
Welding and Fabrication Considerations for ST52-3 Steel
- Weldability: Excellent weldability; can be welded using standard methods such as MIG or TIG welding without preheating.
- Post-Weld Treatment: Generally not required but can enhance mechanical properties depending on application requirements.
Comparison of DIN 17100 ST52-3 with Other Structural Steel Grades
| Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Typical Applications |
| ST52-3 | ≥355 | 510 – 680 | Construction, heavy machinery |
| S355 | ≥355 | 470 – 630 | General structural applications |
| A36 | ≥250 | 400 – 550 | General construction applications |
At HL Steel Company, we provide high-quality DIN 17100 ST52-3 carbon and low-alloy high-strength steel plates tailored for various industrial applications, ensuring optimal performance and reliability in demanding environments.
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