Weathering Steel Plate – Atmospheric corrosion resistant steel for outdoor structures.
Natural Rust Protection – Forms a stable patina layer to help reduce further corrosion.
Multiple Grades Available – ASTM A588, A242, S355J2W, SPA-H, Q355NH and customized grades.
Custom Sizes & Processing – Cutting, bending, drilling, welding and surface treatment available.
Export Ready Supply – MTC, inspection support, seaworthy packing, FOB, CIF and CFR available.
Weathering steel plate is a special low-alloy steel plate designed for outdoor and atmospheric environments. When exposed to air and moisture, the steel surface gradually forms a dense and stable rust-like protective layer. This natural patina helps slow down further corrosion and gives the steel a unique brown-orange appearance.
Because of its excellent atmospheric corrosion resistance, high strength, distinctive weathered surface, and low maintenance requirements, weathering steel plate is widely used in architecture, bridge construction, outdoor landscape, building facades, garden decoration, containers, railway vehicles, sculptures, chimneys, and steel structure projects.
Henan GDD supplies weathering steel plates and corten steel sheets in different grades, thicknesses, widths, lengths, standards, and processing options. We support steel distributors, construction companies, architectural design projects, landscape contractors, bridge projects, container manufacturers, and global industrial buyers.
| Item | Specification |
|---|---|
| Product Name | Weathering Steel Plate / Corten Steel Plate / Weather Resistant Steel Plate |
| Material Type | Atmospheric Corrosion Resistant Steel |
| Standard | ASTM, EN, JIS, GB or Customized |
| Common Grades | ASTM A588, ASTM A242, S355J2W, S355K2W, SPA-H, SPA-C, Q235NH, Q355NH, Q460NH or Customized |
| Thickness | 1.5 mm – 100 mm or Customized |
| Width | 1000 mm – 3000 mm or Customized |
| Length | 2000 mm – 12000 mm or Customized |
| Surface Condition | Black, Rusted, Shot Blasted, Painted, Customized Surface |
| Processing Service | Cutting, Bending, Drilling, Welding, Laser Cutting, CNC Processing |
| Edge | Mill Edge / Cut Edge |
| Inspection | MTC, Dimension Inspection, Surface Inspection, Third-party Inspection |
| Application | Architecture, Bridge, Facade, Landscape, Container, Sculpture, Steel Structure |
| Packing | Standard Export Seaworthy Packing |
| Trade Terms | FOB, CFR, CIF, EXW |
Weathering steel plate is a corrosion-resistant structural steel that contains alloying elements such as copper, chromium, nickel, and phosphorus. These elements help the steel surface develop a compact protective patina under suitable atmospheric conditions.
Unlike ordinary carbon steel, which continues to rust and lose material when exposed outdoors, weathering steel forms a stable rust layer that helps protect the inner steel. This makes it suitable for many outdoor applications where natural appearance and long-term durability are important.
Weathering steel is often called corten steel in the market. It is commonly used for architectural facades, outdoor sculptures, garden screens, bridges, railway vehicles, containers, and landscape decoration.
| Grade | Standard | Feature | Common Application |
| ASTM A588 | ASTM | High-strength weathering steel with good atmospheric corrosion resistance | Bridges, structures, outdoor projects |
| ASTM A242 | ASTM | Atmospheric corrosion resistant structural steel | Architecture, railway, containers |
| S355J2W | EN | Weather resistant structural steel with good strength | Facades, bridges, steel structures |
| S355K2W | EN | Higher impact toughness weathering steel | Structural and outdoor engineering |
| SPA-H | JIS | Hot rolled weathering steel | Containers, railway vehicles, outdoor parts |
| SPA-C | JIS | Cold rolled weathering steel | Panels, decorative sheets, light structures |
| Q235NH | GB | Economical weathering steel grade | Decoration, landscape, general structures |
| Q355NH | GB | Higher strength weathering steel | Bridges, buildings, containers, outdoor structures |
| Q460NH | GB | High-strength weathering steel | Heavy-duty structural projects |
Weathering steel plate is widely used in construction, architecture, transportation, decoration, and industrial projects.
| Application Area | Typical Use |
| Architecture | Building facade, curtain wall, decorative panel, exterior cladding |
| Bridge Construction | Bridge structure, bridge deck, support member, guardrail |
| Landscape Design | Garden screen, planter box, outdoor wall, landscape sculpture |
| Container Industry | Shipping container, storage container, container house |
| Railway Industry | Railway vehicle parts, wagon panels, structural components |
| Outdoor Decoration | Rusted steel sign, art panel, privacy screen, metal sculpture |
| Steel Structure | Outdoor steel frame, industrial building, support structure |
| Chimney and Equipment | Industrial chimney, outdoor equipment shell, weather-resistant parts |
Weathering steel forms a stable protective patina in outdoor environments, helping reduce further corrosion and improving long-term durability.
The brown-orange weathered surface gives the steel a unique industrial and architectural appearance, making it popular for modern buildings, landscape projects, and decorative panels.
In suitable environments, weathering steel can reduce the need for frequent painting or coating, helping lower maintenance costs for outdoor structures.
Weathering steel plate provides reliable mechanical performance and can be used in load-bearing structures, bridges, buildings, containers, and industrial projects.
The material can be cut, bent, drilled, welded, laser cut, and processed into panels, structures, screens, sculptures, and custom steel parts.
Because weathering steel can reduce painting maintenance in many outdoor applications, it is often considered a practical material for sustainable architectural and infrastructure projects.
| Item | Weathering Steel Plate | Ordinary Carbon Steel Plate |
| Corrosion Resistance | Better atmospheric corrosion resistance | Easier to rust outdoors |
| Surface Feature | Forms stable protective patina | Rust layer may continue to expand |
| Maintenance | Lower maintenance in suitable environments | Often requires painting or coating |
| Appearance | Natural rusted decorative surface | Ordinary black or rusty surface |
| Common Use | Architecture, bridges, outdoor structures | General fabrication and construction |
| Cost | Higher material cost | More economical material cost |
| Option | Description |
| Natural Black Surface | Supplied in original mill surface condition |
| Pre-rusted Surface | Rusted appearance processed according to project needs |
| Shot Blasted Surface | Cleaner surface for further processing or coating |
| Painted Surface | Protective paint can be applied if required |
| Laser Cutting | Suitable for decorative screens, panels and custom designs |
| Bending Service | Used for facade panels, boxes, frames and formed parts |
| Welding Service | Suitable for steel structures and fabricated components |
| Drilling Service | Hole processing for installation and assembly |
Henan GDD is a reliable steel material supplier with experience in steel plate supply, processing, inspection, packing, and export service. We provide weathering steel plate solutions for architects, construction companies, bridge contractors, landscape projects, steel distributors, container manufacturers, and global industrial buyers.
| Advantage | Description |
| Multiple Grades | ASTM A588, A242, S355J2W, SPA-H, Q235NH, Q355NH and customized grades available |
| Custom Sizes | Thickness, width, length and plate size can be customized |
| Processing Support | Cutting, bending, drilling, welding, laser cutting and CNC processing available |
| Surface Options | Black, rusted, shot blasted, painted and customized surface treatment supported |
| Quality Inspection | Thickness, size, surface, grade and packing inspection available |
| Export Experience | Support international shipment and export documents |
| One-stop Service | Quotation, production, processing, inspection, packing and shipping support |
Before shipment, Henan GDD can arrange inspection according to customer requirements and project specifications.
| Inspection Item | Details |
| Dimension Inspection | Thickness, width, length and tolerance check |
| Surface Inspection | Rust condition, scratches, cracks, dents and visible defects check |
| Grade Verification | Steel grade and standard confirmation |
| Processing Check | Cutting size, bending angle, hole position and welding quality if required |
| Quantity Check | Plate quantity, bundle quantity and total weight confirmation |
| Material Certificate | MTC and quality documents available |
| Third-party Inspection | SGS, BV, Intertek or customer-appointed inspection accepted |
Weathering steel plates are packed according to plate size, order quantity, processing method, destination port, and shipping method. Export packing can be arranged to protect the plates during handling, storage, and ocean transportation.
| Item | Details |
| Packing Method | Steel strip bundle, wooden pallet, steel pallet or customized packing |
| Surface Protection | Waterproof protection or anti-rust oil if required |
| Marking | Grade, size, heat number, bundle number and customer mark if required |
| Loading Method | Container, bulk vessel, break bulk or customized shipment |
| Documents | Commercial Invoice, Packing List, Bill of Lading, MTC, COO if required |
| Trade Terms | FOB, CFR, CIF, EXW |
Weathering steel plate is used for building facades, bridges, outdoor landscape, garden screens, sculptures, containers, railway vehicles, chimneys, steel structures, and outdoor decorative projects.
In the market, weathering steel is often called corten steel. Both refer to atmospheric corrosion resistant steel that forms a stable rust-like protective layer in outdoor environments.
We can supply ASTM A588, ASTM A242, S355J2W, S355K2W, SPA-H, SPA-C, Q235NH, Q355NH, Q460NH and customized grades.
Yes. Natural black surface, pre-rusted surface, shot blasted surface, painted surface and customized surface treatment can be supplied according to project requirements.
Yes. Cutting, bending, drilling, welding, laser cutting and CNC processing can be arranged according to drawings or project requirements.
Please provide steel grade, thickness, width, length, quantity, surface requirement, processing requirement, destination port and trade terms.
Yes. MTC, quality documents, inspection photos, packing photos, loading photos and third-party inspection can be provided according to order requirements.
Looking for weathering steel plates for architecture, bridges, landscape or outdoor steel structures?
Send us your required grade, thickness, size, quantity, surface requirement and destination port. Henan GDD will provide a professional quotation and suitable shipping solution.
