09CuPCrNi-A Corten Steel Plate

09CuPCrNi-A is a widely used Corten steel, designed for structural applications that require high strength and enhanced resistance to atmospheric corrosion. Similar in performance to Corten-A steel, it develops a stable, rust-like patina that protects the steel from further corrosion.

As a low-alloy steel grade developed under Chinese GB/T 4171 standard, 09CuPCrNi-A is ideal for architectural facades, bridges, containers, and garden landscape installations.

🔍 Key Features

• Forms a protective oxide layer after exposure

• Similar corrosion resistance to ASTM A588 Grade A

• No painting needed – natural anti-corrosion barrier

• Strong weldability and machinability

• Earthy appearance suits modern rustic designs

📌 Typical Applications

• Outdoor decorative panels and sculptures

• Railway carriages and containers

• Urban architecture and corten facades

• Weathering steel flower beds and retaining walls

• Power plant chimneys and towers

⚙️ Technical Specifications

Chemical Composition (%):

• C ≤ 0.12

• Mn: 0.20–1.50

• Si: 0.25–0.75

• P: 0.07–0.15

• S ≤ 0.03

• Cu: 0.25–0.55

• Cr: 0.40–0.60

• Ni: 0.20–0.50

📦 Supply Range

• Thickness: 2mm – 80mm

• Width: up to 3000mm

• Length: 6000mm – 12000mm or customized

• Edge: Mill or cut edge

• Services: Plasma cutting, CNC bending, pre-rusting, oiling, painting