What is Perforated Corten Steel in Facade cladding?

2025-12-12 | More News

What is Corten Steel Plate and Why is it Called Corten?

Corten steel refers to a category of steel alloys mainly used in outdoor applications. These steels develop a naturally protective surface layer, known as patina, which guards against corrosion. This feature eliminates the need for additional coatings, making Corten a cost-effective solution.

Corten steel plates are commonly used in railroad coal wagons and other demanding environments. The name “Corten” originates from its two key properties: CORrosion resistance and TENsile strength.

Is Corten Sheet Expensive? Why?

Corten steel sheets typically cost more than standard carbon steel sheets due to:

The alloying elements and production process involved.
Superior mechanical properties offered by Corten steel.
Its unique rust-like appearance, which is highly sought after for architectural and aesthetic projects.

Prices vary depending on the supplier, quantity, customization, and delivery location.

Corten Steel Plate Price (USD per kg)

Thickness (mm)	1	1.2	1.6	2	2.5	3.15	4	4.5	5	6	8
Price	1.18	1.18	1.18	1.18	1.18	0.93	0.93	0.93	0.93	0.93	0.93

Thickness (mm)	10	12	16	20	22	25	32	38	45	50
Price	0.93	0.93	0.93	0.93	0.93	0.93	0.93	0.93	0.93	0.93

You can purchase Corten sheets 2500 x 1250 mm, thickness from 1.5 to 3 mm, or customized sizes at competitive prices.

Specifications of Corten Steel Plates

Thickness (mm)	Width (mm)	Grade
2–460	900–3200	Corten A, Corten B, A242 Type 1, S355J0W, S355J2W, S355J0WP, A588 Grades A/B/C

Length: 1000–12000 mm
ASTM Standards: ASTM A242, ASTM A588
Rusting Period: 4–10 years

Common Forms: strips, plates, sheets, coils, perforated sheets, edging, roofing, flat sheets, wall panels
Welding Methods: MIG, TIG, Stick
Manufacturing: Hot rolled, cold rolled, forged

Density, HS Code, and Applications

Density: 7.7–8.03 kg/m³
HS Code: 72092690
Applications: Bridges, architecture, garden and landscape, sculptures, interiors, roofing, façades

Value-Added Services: Cladding, pickling, polishing, heat treatment, cutting, annealing, rolling, minor fabrication, bending, forging
Edge/Shape Options: Quarter circle, straight edge, square end, 45° corner, half circle, 90° corner
Pattern Options: Slots staggered, cloverleaf aligned, round staggered, hexagon staggered, square aligned/diagonal

Hot-Rolled vs Cold-Rolled Corten Steel Sheets

Feature	Hot Rolled	Cold Rolled
Cost	Lower	Higher
Strength	Lower	Higher
Formability	Better	Worse
Surface	Rough	Smooth, shiny
Internal Stress	Low	Higher
Usage	General structural use	Surface-sensitive, precise applications

Standard Sizes and Weight

Thickness	Weight (lbs/ft)
3/8″	15.315
1/4″	10.210
1/2″	20.420

Standard sheet dimensions: Length: 2000–3000 mm, Width: 1000–1500 mm, Thickness: 1.5–10 mm.
Customized sizes available on request.

Corten Steel Sheet Cladding and Benefits

Corten cladding is the process of covering exteriors with weathering steel.

Benefits:

Enhances durability and longevity of structures
Adds aesthetic character to façades
Requires minimal maintenance
Sustainable and eco-friendly

Lifespan of Corten Roof Sheets

Depending on environmental conditions, maintenance, and thickness, Corten roof sheets can last 30–50 years or longer, offering superior long-term performance compared to conventional materials.