Hot Rolled 09cupcrni-a Corten Steel Plate

 

The 09CuPCrNi-A steel plate is a high-performance atmospheric corrosion-resistant structural steel, designed for long-term outdoor applications.

 

Belonging to the low-alloy structural steel series (Q345GNHL weathering steel), it sits between ordinary carbon steel and stainless steel in terms of performance.

 

 

Produced as Hot Rolled 09CuPCrNi-A Plate, this material combines the strength, toughness, formability, weldability, abrasion resistance, high-temperature resistance, and fatigue resistance of high-quality steel with superior corrosion resistance.

 

The 09CuPCrNi-A corten steel sheet offers 2–8 times the atmospheric corrosion resistance of common carbon steel, and 1.5–10 times better paint adhesion, making it a preferred material for cost-effective, low-maintenance projects.

 

 

Due to its excellent durability and anti-rust performance, the 09CuPCrNi-A Corrosion Resistant Steel Plate is widely used in:

 

Railway and train carriages

 

Bridges and towers exposed to harsh weather

 

Container manufacturing

 

Oil derricks and offshore platforms

 

Seaport structures and marine engineering

 

Chemical and petroleum equipment exposed to H₂S-containing media

 

 

 

 

Element	Content (%)	Function & Benefit
Cu	0.20 – 0.40	Promotes α-FeOOH formation, increases patina density and corrosion resistance
P	≤ 0.07	Works with Cu to reduce patina conductivity, suppresses electrochemical corrosion
Cr	0.30 – 1.00	Forms Cr₂O₃ protective film, enhances resistance to atmospheric corrosion
Ni	0.10 – 0.50	Stabilizes rust layer structure, improves pitting resistance
C	≤ 0.12	Controlled to improve toughness and reduce brittleness
S, P (impurities)	Minimized	Improves mechanical properties and weldability
Microalloying (Nb, V)	Trace	Refines grain size, enhances strength and toughness

 

 

Yield Strength: ≥343 MPa

 

Tensile Strength: 490–630 MPa

 

Elongation: ≥22%

 

Low-Temperature Toughness: Impact energy ≥21 J at –40°C

 

Bending Performance: 180° bend with a radius of 1–2× plate thickness, suitable for complex forming

 

 

 

Weldability: Low carbon equivalent (Ceq ≤0.47%) and controlled rolling reduce welding difficulty; preheating (100–200°C) is recommended to avoid cold cracking

 

Formability: Suitable for hot forming, bending, and shaping

 

Cutting: Compatible with flame cutting, plasma cutting, and other thermal cutting methods (control heat-affected zone to prevent deformation)

 

 

2–8× the atmospheric corrosion resistance of ordinary steel

 

Reduced or no painting requirement, lowering lifecycle maintenance costs

 

Excellent structural strength with good ductility

 

Proven performance in extreme climates, from marine to sub-zero environments

 

Aesthetic natural rust appearance for architectural and decorative applications

 

 

 

 

 

We supply Hot Rolled 09CuPCrNi-A Plate, 09CuPCrNi-A corten steel sheet, and 09CuPCrNi-A Corrosion Resistant Steel Plate in customized dimensions to meet your project requirements.

 

Test certificates for chemical composition and mechanical properties are available upon request.

 

 

If you are looking for a reliable, long-lasting, and low-maintenance material for bridges, railway structures, marine equipment, or architectural applications, our 09CuPCrNi-A steel plate is an excellent choice.

 

As a professional supplier of 09CuPCrNi-A corten steel sheet, we ensure strict quality control and competitive pricing to meet your engineering needs.

Contact now