S420 Medium Plate

About this product

S420 Medium Plate is a high - strength low - alloy structural steel compliant with EN 10025. The "S" denotes structural steel, and "420" indicates a minimum yield strength of 420 MPa. Produced via normalizing or thermo - mechanical rolling, it features a controlled chemical composition with elements like manganese, silicon, and trace alloys.

S420 Chemical composition table

International Standard Grades

Available Sizes

Advantages

Advantages: Description High Strength: Yield strength ≥420MPa, strong structural load-bearing capacity, reduces weight and costs Easy to Process: Good weldability and formability, suitable for complex structure fabrication Excellent Corrosion Resistance: Alloy composition enhances atmospheric corrosion resistance, reducing outdoor maintenance costs Superior Toughness: Some grades have strong low-temperature impact resistance, suitable for cold environments Cost-Effective: Less material usage for the same strength, long service life, low lifecycle costs Wide Applications: Used in construction, machinery, shipbuilding, energy, etc., compliant with international standards

Applications

FAQ

Q: What is S420 medium plate?

A: S420 is a high-strength structural steel plate under the European standard EN 10025-2, with a minimum yield strength of 420 MPa. It belongs to low-alloy high-strength steel (HSLA), widely used in construction, bridges, machinery, and marine projects.

Q: What's the equivalent standard in China?

A: The Chinese equivalent is Q420 (GB/T 1591), with similar mechanical properties but slightly different chemical compositions.

Q: What are the common thickness ranges?

A: Typically 6 mm to 100 mm, but custom thicknesses (e.g., 4 mm – 120 mm) can be arranged based on orders.

Q: What's the delivery time for a 20ft container?

A: Usually 15–25 days after order confirmation, depending on stock availability and customization requirements.

Q: Can you supply samples?

A: Yes, free samples (within 200 mm × 200 mm) can be provided for quality evaluation. Buyer bears shipping costs.