S420J0W Weathering Structural Steel Plate - High Strength
The S420J0W steel plate is a premium-grade weathering steel designed for demanding structural applications. Compliant with EN 10025-5 standard, it offers exceptional strength and corrosion resistance, making it ideal for outdoor structures exposed to harsh environments.
Key Features:
High Strength: With a minimum yield strength of 420 MPa, it supports heavy loads in bridges, towers, and industrial buildings.
Superior Weather Resistance: Alloyed with copper, phosphorus, chromium, and nickel, it forms a protective patina that inhibits rust progression, eliminating the need for frequent painting.
Impact Resistance: Tested at 0°C (J0 designation), ensuring reliable performance in cold climates.
Weldability: Easily weldable using standard methods, facilitating efficient fabrication.
Cost-Effective: Reduced maintenance requirements lower lifecycle costs compared to conventional steels.
Applications:
Civil Engineering: Bridges, railway structures, and architectural facades.
Transportation: Container frames, truck bodies, and railway wagons.
Industrial: Storage tanks, pipelines, and offshore platforms.
Technical Specifications:
Standard: EN 10025-5:2004
Yield Strength: ≥420 MPa
Tensile Strength: 500-680 MPa
Elongation: ≥18%
Impact Energy: ≥27 J (0°C)
Chemical Composition: C≤0.12%, Si≤0.55%, Mn≤1.50%, P≤0.035%, S≤0.035%, Cu 0.20-0.55%, Cr 0.30-1.25%, Ni≤0.65%
Available in thicknesses from 3mm to 100mm and widths up to 3000mm, our S420J0W plates meet rigorous quality control standards. Contact us for custom sizes and certifications.

FAQ
Q1: What is S420J0W steel?
A1: A high-strength weathering steel (EN 10025-5) with enhanced corrosion resistance.
Q2: Does it require painting?
A2: No, its natural patina provides long-term protection against rust.
Q3: What's the minimum yield strength?
A3: 420 MPa, suitable for heavy-load structures.
Q4: Is it weldable?
A4: Yes, it can be welded using standard procedures for structural steels.
Q5: What's the impact resistance?
A5: Tested at 0°C (J0), ensuring toughness in cold environments.




