S355J0WP Steel Plate - Weathering Structural Steel for Construction & Engineering

Tianjin TISCO International Trade Co., Ltd.

Verified Custom manufacturer 5yrs

Technical Specifications of S355J0WP Steel Plate

Property	Parameter	Description
Product Name	S355J0WP Steel Plate	Weathering steel plate with enhanced atmospheric corrosion resistance
Material Grade	S355J0WP / EN 10025-5 / ASTM A588	International grade equivalents for weathering steel
Standard Compliance	EN 10025-5, ASTM A588, JIS G3114	Meets major international weathering steel standards
Carbon (C)	≤0.16%	Carbon content for optimal strength and weldability
Manganese (Mn)	0.50-1.50%	Improves hardenability and strength
Phosphorus (P)	0.06-0.15%	Enhanced for weathering properties
Sulfur (S)	≤0.035%	Controlled for ductility and weldability
Copper (Cu)	0.25-0.55%	Key element for protective patina formation
Chromium (Cr)	0.30-1.25%	Enhances corrosion resistance
Nickel (Ni)	≤0.65%	Improves atmospheric corrosion resistance
Yield Strength	≥355 MPa	Minimum yield strength at 16mm thickness
Tensile Strength	470-630 MPa	Tensile strength range per EN 10025-5
Elongation	≥20%	Ductility in 50mm gauge length
Impact Energy (0°C)	≥27 J	Charpy V-notch impact at 0°C (J0 designation)
Thickness Range	3-150 mm	Available thickness options for plates
Width Range	1000-4000 mm	Standard and custom widths available
Surface Finish	Hot rolled, pickled, shot blasted	Multiple surface treatment options
Application	Bridges, containers, outdoor structures, railway vehicles	Typical weathering steel applications
Corrosion Resistance	4-8 times better than carbon steel	Forms protective rust patina in atmospheric conditions
Certification	EN 10204 3.1, ISO 9001, CE marking	Quality certifications provided
Packaging	Steel strapping, waterproof paper, wooden pallet	Standard export packaging for corrosion protection
MOQ	5 tons	Minimum order quantity

S355J0WP Steel Plate - Weathering Structural Steel for Construction & Engineering

S355J0WP steel plate is a high-strength weathering structural steel specifically engineered for applications requiring superior atmospheric corrosion resistance without protective coatings. This European standard grade finds extensive application in bridges, railway infrastructure, architectural facades, and outdoor structural frameworks where long-term durability against environmental exposure is critical. With its self-protective oxide layer formation and robust mechanical properties, S355J0WP serves as the preferred choice for engineers seeking cost-effective solutions in corrosive environments.

What is S355J0WP Steel Plate?

S355J0WP is a low-alloy structural steel conforming to EN 10025-5:2019 standards, characterized by enhanced atmospheric corrosion resistance through controlled additions of copper, chromium, and nickel. The designation indicates a minimum yield strength of 355 MPa, impact testing at 0°C, and weathering properties (W) suitable for painted applications (P). This grade develops a stable, adherent rust layer that significantly reduces the corrosion rate compared to conventional carbon steels.

S355J0WP Steel Plate Technical Specifications

Chemical composition per EN 10025-5: Carbon 0.12% maximum, Manganese 0.50-1.50%, Silicon 0.75% maximum, Phosphorus 0.035% maximum, Sulfur 0.030% maximum, Copper 0.25-0.55%, Chromium 0.30-1.25%, Nickel 0.65% maximum. Mechanical properties: Tensile strength 470-630 MPa, yield strength 355 MPa minimum (for thickness ≤16mm), elongation 20% minimum. The steel exhibits excellent weldability using standard procedures without preheating up to 30mm thickness.

Why Choose S355J0WP for Weathering Applications

This weathering grade offers exceptional lifecycle cost advantages through elimination of painting maintenance in suitable environments. The protective patina forms within 18-36 months depending on atmospheric conditions, providing corrosion rates 4-8 times lower than mild steel. Superior mechanical strength enables reduced section weights compared to conventional grades, while excellent formability supports complex fabrication requirements for architectural and structural applications.

S355J0WP steel plate supplier

Frequently Asked Questions

What is the minimum order quantity for S355J0WP plate?

Our mill-direct supply capabilities enable flexible MOQ starting from 5 metric tons per specification. For standard thicknesses (6-50mm) and widths (1500-3000mm), we maintain ready inventory to support smaller project requirements with competitive lead times.

Do you provide material test certificates for weathering steel?

Yes, every shipment includes EN 10204 3.1 mill test certificates documenting chemical composition per heat analysis, mechanical properties, impact test results at 0°C, and atmospheric corrosion resistance verification per EN 10025-5 Section 7.4. Additional third-party certification available upon request.

What is the typical delivery time for custom sizes?

Standard stock dimensions ship within 7-10 working days. Custom cutting to specified dimensions requires 15-20 days from order confirmation. For plates requiring normalizing heat treatment or specific surface preparation, allow 25-30 days. Expedited processing available for urgent project schedules.

Can you cut S355J0WP to custom sizes and shapes?

Our precision cutting facilities accommodate plasma cutting, oxy-fuel cutting, and water jet cutting for complex geometries. Thickness range 6-100mm, maximum plate dimensions 3000x12000mm. We provide edge beveling, hole drilling, and surface blasting services to meet fabrication-ready specifications with dimensional tolerances per EN 10029 Class A.

S355J0WP steel plate manufacturer

Get a Competitive Quote for S355J0WP Steel Plate

Request factory-direct pricing for your weathering steel requirements today. Our technical sales team provides comprehensive material selection guidance, corrosion performance predictions for your specific environment, and value-engineered solutions to optimize project costs. Contact us with your specifications for detailed quotations including material certification, custom processing, and logistics coordination to your construction site.

S355J0WP steel plate China

Ratings & Reviews

5.0

Very satisfied

Based on 8 reviews for verified purchases

Supplier service

5.0

On-time shipment

5.0

Supplier service

5.0

Chris Martin

Canada

verified purchases

2025-09-10

Acceptable Quality with Initial Documentation Delay
Ordered 10 tons of S355J0WP plate (15mm thickness) for transmission tower components in Alberta. Material quality was good with yield strength at 368 MPa and proper chemical composition. However, mill test certificates arrived 5 days after the material shipment, causing minor project documentation delays. The supplier quickly resolved this by providing certified copies via email within 24 hours of our request. Mechanical properties and surface condition met our specifications. Would recommend verifying documentation delivery schedule upfront for time-sensitive projects.

Wei Chen

Singapore

verified purchases

2025-09-28

Premium Quality with Fast Delivery Service
Purchased 6 tons of S355J0WP weathering steel plate (8mm thickness, 1500mm width) for architectural screen wall project. Received material in just 11 days, ahead of the 15-day schedule. EN 10204 3.1 certificates included complete traceability with heat numbers. Dimensional tolerances met EN 10029 Class A requirements perfectly. The supplier arranged edge grinding service for our aesthetic requirements. Carbon content at 0.09% ensured excellent formability for our cold bending operations. This is our fourth purchase for various projects across Southeast Asia.

Carlos Silva

Brazil

verified purchases

2025-10-15

Reliable Material for Industrial Framework
We ordered 9 tons of S355J0WP plates (12mm thickness) for outdoor equipment supports at our São Paulo facility. Material certificates documented all chemical elements within EN 10025-5 limits. The steel showed good weldability with E7018 electrodes without preheating up to 12mm thickness as specified. Minor surface scratches on 2 plates were acceptable for our non-critical application. Price was competitive compared to local suppliers offering painted carbon steel alternatives. Delivery completed in 28 days to Brazil. Solid choice for industrial structural applications.

William Taylor

Australia

verified purchases

2025-11-02

Superior Weathering Performance for Coastal Structures
Ordered 14 tons of S355J0WP plate (6mm and 10mm thickness) for marine jetty renovation in Sydney Harbour. The nickel content at 0.52% and copper at 0.41% provided optimal corrosion resistance for our severe marine exposure classification. Surface finish was uniform with minimal mill scale. Elongation values exceeded 22% in transverse direction testing. Delivered within 19 days including customs clearance. Technical support team answered all our questions about patina formation timeline and maintenance requirements. Excellent choice for Australian coastal applications.

Ahmed Al-Hassan

UAE

verified purchases

2025-11-20

Perfect for Desert Climate Infrastructure Projects
Purchased 18 tons of S355J0WP weathering steel (10mm thickness, 2000mm width) for pedestrian bridge construction in Dubai. The supplier provided atmospheric corrosion resistance verification per EN 10025-5 Section 7.4, critical for our high-temperature, low-humidity environment. Tensile strength results ranged 512-548 MPa across three test specimens. Custom cutting to complex geometries was executed flawlessly with water jet technology. Material arrived in 16 days with proper export documentation. Third consecutive order for our infrastructure division.

Hans Mueller

Germany

verified purchases

2025-12-08

Good Value S355J0WP with Competitive Pricing
Ordered 12 tons of S355J0WP plates (15mm and 20mm thickness mix) for outdoor structural framework. Compared quotes from 4 European suppliers and this offered 12% cost savings. Yield strength tested at 378 MPa for 15mm plates, comfortably above 355 MPa minimum. Delivery took 22 days, slightly longer than the 15-20 days quoted, but material quality justified the wait. Edge beveling service was precise for our welding requirements. Would order again for price-sensitive projects.

Michael Johnson

United States

verified purchases

2025-12-23

Outstanding Quality for Architectural Facade Application
We purchased 8 tons of S355J0WP plate (8mm thickness) for a commercial building facade in Boston. Material arrived with excellent surface preparation, ready for welding without additional blasting. Chemical composition report showed phosphorus at 0.028% and sulfur at 0.022%, well within specification limits. The supplier's technical team provided detailed corrosion rate predictions for our coastal environment. This is our second order for weathering steel projects. Highly recommend for architectural applications requiring maintenance-free performance.

James Wilson

United Kingdom

verified purchases

2026-01-07

Excellent S355J0WP Plates for Railway Bridge Project
Ordered 22 tons of S355J0WP weathering steel plates (12mm thickness, 2500mm width) for our railway bridge refurbishment in Scotland. EN 10204 3.1 certificates confirmed copper content at 0.48% and chromium at 0.92%, perfectly meeting EN 10025-5 requirements. Impact test results at 0°C showed 45J, exceeding the 27J minimum. Plasma cut to our CAD drawings with ±2mm tolerance. Delivered to site in 18 days. The protective oxide layer is already forming beautifully after 4 months of exposure.