EN 10025-2 S420J0 High-strength Low-alloy (HSLA) Steel Plate
EN 10025-2 S420J0 High-strength Low-alloy (HSLA) Steel Plate
EN 10025-2 S420J0 is a European standard High-strength Low-alloy (HSLA) steel plate that has better weldability, formability, and corrosion resistance while maintaining high strength.
Standard :
EN 10025-2Grade :
S420J0-
Thickness :
0.8-30.0 mm -
Width :
800-2500 mm
Special thickness, width, and length require negotiation.
We also provide customized processing services.If you have any questions, please contact us.
General Description of S420J0
EN10025-2 is a European standard for hot-rolled structural steels, and S420J0 is a high-strength, low-alloy (HSLA) steel grade with improved mechanical properties compared to standard carbon steels. It is designed for better weldability, formability, and corrosion resistance while maintaining high strength.
Features & Benefits：
✔ High Strength-to-Weight Ratio – Suitable for lightweight yet strong structures.
✔ Good Weldability – Preheating may be required for thick sections.
✔ Improved Toughness – Performs well in low-temperature environments (-20°C impact tested).
✔ Corrosion Resistance – Better than standard carbon steels due to alloying elements.
EN 10025-2 S420J0 is a cost-effective HSLA steel offering high strength, good weldability, and toughness, making it ideal for demanding structural applications.
Chemical Composition of S420J0
| Grade | EN10025-2 S420J0 | ||||||
| Element | C | Si | Mn | P | S | N | Others (Nb, V, Ti, etc.) |
| Content(%) | ≤0.20 | ≤0.50 | ≤1.60 | ≤0.030 | ≤0.025 | ≤0.020 | Micro-alloying elements may be added |
Mechanical Properties of S420J0
| Grade | Yield Strength | Tensile Strength | Elongation | Impact Energy (KV) |
| EN10025-2 S420J0 | ≥420 MPa | 520-680 MPa | 18 (for thickness ≤16mm) | ≥27 J at 0°C |
Applications of S420J0
1. Construction & Structural Engineering (bridges, buildings, heavy machinery)
2. Mining & Earthmoving Equipment
3. Shipbuilding & Offshore Structures
4. Pressure Vessels & Storage Tanks
5. Transportation (Trucks, Trailers, Cranes)
Other Information
Comparison with Other Grades:
| Grade | Yield Strength（≥MPa） | Impact Test Temperature | Differences in Applicable Scenarios |
| S355J0 | 355（≤16mm） | 0℃ | Medium strength, more commonly used for general structures |
| S420J0 | 420（≤16mm） | 0℃ | High strength for load-bearing structures with greater demands |
| S460J0 | 460（≤16mm） | 0℃ | Even higher strength, suitable for ultra-heavy-duty structures |
Equivalent Grades：
| Standard | Equivalent Grade |
| ASTM | A572 Gr.50 / A709 Gr.50 |
| ISO | S420J0 |
| JIS | SM490 |
| GB (China) | Q420B |
Processing & Fabrication：
Cutting: Laser, plasma, or oxy-fuel cutting is suitable.
Welding: Compatible with common methods (SMAW, GMAW, SAW). Preheat if thickness >20mm.
Forming: Can be cold-formed but may require annealing for severe bends.
Forms: Plates, sheets, coils.
Yuxin Steel provides high-quality steel products that comply with EN, ASTM, ASME, JIS, GB, and other standards. The main product categories include: boiler and pressure vessel steel plates, high-strength low-alloy steel plates, weather-resistant steel, wind tower steel, and more..
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Customers choose to engage in long-term cooperation with Yuxin Steel not only because of our high-quality products and services, as well as our strong reputation in the international market, but also due to our experienced one-stop raw material supply and further steel processing capabilities!
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Yuxin Steel provides customized steel processing services based on drawings, samples, designs, and various special requirements, offering one-stop solutions for steel procurement and processing needs.Latest Projects
Yuxin Steel provides high-quality steel products to customers in more than 20 countries worldwide.
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