ASTM A588/A588M Corten Steel Coil

ASTM A588/A588M Corten Steel Coil is a high-strength, low-alloy structural steel coil with enhanced atmospheric corrosion resistance. Manufactured in accordance with the ASTM A588/A588M standard, this weathering steel develops a protective oxide layer (patina) over time, which shields the material from further corrosion—eliminating the need for painting or coating in many environments.

Commonly used in structural, architectural, and industrial applications, A588 Corten coils are an excellent choice for outdoor environments that require both strength and long-term durability.

🔹 Available Grades

Each grade offers slight differences in mechanical properties and composition, tailored to different structural and environmental needs.

🔹 Key Features

• Outstanding weather resistance (up to 8× that of carbon steel)

• High tensile and yield strength

• Forms a stable, protective rust patina

• Excellent weldability and formability

• Suitable for cold rolling, stamping, and bending

• Long service life in outdoor and industrial applications

🔹 Typical Mechanical Properties (Grade A as reference)

🔹 Surface Finish

• As-rolled (mill finish) – weathers naturally outdoors

• Pickled & oiled – for cleaner surface and extended storage

• Pre-weathered (optional) – immediate patina appearance

🔹 Applications

• Outdoor steel cladding and siding

• Industrial containers and railcars

• Bridges and highway structures

• Roofing and curtain wall systems

• Architectural panels, fencing, and sculpture bases

• Signage, facades, and infrastructure supports

🔹 Coil Specifications

🔹 Why Choose Our A588 Corten Steel Coil

• Full compliance with ASTM A588/A588M standards

• Stable supply with short lead times and export-ready packaging

• Ideal for fabrication, laser cutting, profiling, and forming

• Available in sheets, coils, and slit strips

• Technical support and material certification provided