Corten Steel Cladding
What is corten steel cladding ?
Corten Steel
Corten, also known as weathering steel, is a type of steel that offers excellent corrosion resistance due to the development of a protective rust-like oxide layer on its surface. This unique layer gives Corten its distinct rustic look and continuously regenerates when exposed to the elements, meaning it doesn’t need special treatment before installation to ensure durability.
Corten steel has gained popularity among sculptors and architects for its natural blend with the environment. Over time, exposure to weather deepens its rich hues of red, brown, and orange, creating an evolving texture that enhances its aesthetic appeal.
Corten Cladding
Corten steel is widely used in external cladding, particularly in Standing Seam and Residential Corten Steel Cladding. It’s a cost-effective and durable choice, often used in interlocking or standing seam panels. Its lightweight nature makes installation easy and efficient.
In modern architecture, Corten steel fits well in both urban and rural settings, offering a distinctive industrial look that stands out on buildings and facades. However, it’s important to design for proper drainage, as trapped water can cause increased corrosion. Corten’s weathering can also cause rust stains on nearby surfaces, which can be avoided by ensuring water doesn’t drain onto areas like concrete.
Advantages of Corten Steel Cladding
Aesthetic Appeal: Corten steel offers a unique, rustic look that evolves over time, shifting from orange to deep brown, adding a modern industrial touch.
Cost-Effective: While the initial cost may be higher, its durability and minimal maintenance make it a long-term, budget-friendly option.
Versatility: It’s suitable for a variety of applications, from building facades and landscaping to public art and interior design, creating a unified and eye-catching appearance.
Strength and Stability: Corten steel’s high tensile strength allows it to handle heavy loads, making it perfect for both decorative and structural purposes.
Is Corten Steel Cladding Expensive?
Corten steel cladding can be more expensive initially, costing up to three times more than regular mild steel. Despite the higher upfront cost, its durability and low maintenance needs make it more cost-effective in the long run. We provide Corten steel cladding in thicknesses from 1.0 to 1.5 mm, suitable for roofing and siding applications.
Corten Steel Cladding Specification
| Specifications | Detail |
| Material Type | Weathering Steel (Corten) |
| Thickness | Range 1.0 – 1.5 mm |
| Finish | Natural Rust-like Patina |
| Durability | High, with minimal maintenance |
| Corrosion Resistance | Excellent, due to protective patina |
| Cost | Higher initial cost, but cost-effective over time |
| Aesthetic Appeal | Rustic, industrial look with evolving color palette |
| Maintenance | Low, due to self-sustaining patina |
Corten Steel Mechanical Properties
| Element | Grade B | Grade A |
| Tensile strength Rm MPa | 485 | 485 |
| Minimum yield point ReH Mpa *) | 345 | 345 |
| Minimum elongation A (Lo=5.65 √So) % | 19 | 20 |
Corten wall Cladding Chemical Properties
| Si % max. |
C % max. |
Mn % | Z% | S % max. |
P % | N % max. |
Cr % | V% | Cu % | Ni% | Mo% | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| According to EN 10027-1 & CR 10260 | ||||||||||||
| S235J2W | 0.40 | 0.13 | 0.20-0.60 | – | 0.03 | 0.04 | – | 0.40-0.80 | – | 0.25-0.55 | 0.65 | – |
| S235J0W | 0.40 | 0.13 | 0.20-0.60 | – | 0.04 | 0.04 | 0.01 | 0.40-0.80 | – | 0.25-0.55 | 0.65 | – |
| S355J2WP | 0.75 | 0.12 | 1.00 | – | 0.03 | 0.06-0.15 | – | 0.30-1.25 | – | 0.25-0.55 | 0.65 | – |
| S355J0W | 0.75 | 0.12 | 1.00 | – | 0.04 | 0.06-0.15 | 0.01 | 0.30-1.25 | – | 0.25-0.55 | 0.65 | – |
| S355J2W | 0.50 | 0.16 | 0.50-1.50 | 0.15 | 0.03 | 0.03 | – | 0.40-0.80 | – | 0.25-0.55 | 0.65 | 0.30 |
| S355J0W | 0.50 | 0.16 | 0.50-1.50 | 0.15 | 0.04 | 0.04 | 0.01 | 0.40-0.80 | – | 0.25-0.55 | 0.65 | 0.30 |
| S355K2W | 0.50 | 0.16 | 0.50-1.50 | 0.15 | 0.03 | 0.03 | – | 0.40-0.80 | – | 0.25-0.55 | 0.65 | 0.30 |
| According to ASTM & ASME Specn. | ||||||||||||
| A 588 Gr. B | 0.15- 0.50 |
0.20 | 0.75-1.35 | 0.05 | 0.04 | – | 0.40-0.70 | 0.01- 0.10 |
0.20-0.40 | |||
| A 588 Gr. A | 0.3- 0.65 |
0.19 | 0.80-1.25 | 0.05 | 0.04 | – | 0.40-0.65 | 0.02- 0.10 |
0.25-0.40 | |||
| A 588 Gr. C | 0.15- 0.40 |
0.15 | 0.80-1.35 | 0.05 | 0.04 | – | 0.30-0.50 | 0.01- 0.10 |
0.20-0.50 | |||
| A 242 Type-1 | – | 0.15 | 1.00 | 0.05 | 0.15 | 0.20 min. | ||||||
| A 588 Gr. K | 0.25- 0.50 |
0.17 | 0.50-1.20 | Cb-0.005 -0.05 |
0.05 | 0.04 | – | 0.40-0.70 | – | 0.30-0.50 | ||
| A 242 Type-2 | – | 0.20 | 1.50 | 0.05 | 0.04 | 0.20 min. | ||||||
| According to IS STD. | ||||||||||||
| IRSM-41 | 0.30- 0.50 |
0.10 | 0.25-0.45 | – | 0.03 | 0.075-0.14 | – | 0.35-0.49 | 0.05 | 0.30-0.60 | 0.28- 0.49 |
0.05 |
Corten Steel Facade Equivalent Grade
| Material # | ASTM | SEW 087 | EN 10155 | UNI | NFA 35-502 | BS 4360 | JIS G3114 |
| 1.8967 | – | – | S355K2G2W | – | – | – | – |
| 1.8945 | – | E 36 WA 3 | S355J0WP | WR 50 A | Fe 510 C1K1 | – | – |
| 1.8961 | – | WTSt 37-3 | S235J2W | Fe 360 DK 1 | E 24 W 4 | – | – |
| 1.8959 | A 588 – A 242 Gr. 1 | – | S355J0W | Fe 510 C2K1 | E 36 WB 3 | WR 50 B | SMA 50 AW |
| 1.8946 | A 242 Type 1 | – | S355J2WP | Fe 510 D1K1 | E 36 WA 4 | – | – |
| 1.8965 | – | – | S355J2G2W | – | – | – | SMA 50 CP |
| 1.8963 | A 588 Gr. A | WTSt 52-3 | S355J2G1W | Fe 510 D2K1 | – | WR 50 C | to |
| 1.8966 | A 709 Gr. 50 W | – | S355K2G1W | – | E 36 WB 4 | – | – |
Sizes of Rusted Steel Cladding
| Element | Grade B | Grade A |
|---|---|---|
| Tensile strength Rm MPa | 485 | 485 |
| Minimum yield point ReH Mpa *) | 345 | 345 |
| Minimum elongation A (Lo=5.65 √So) % | 19 | 20 |
Benefits of Corten Cladding
Durability: Corten cladding offers long-lasting performance, even in harsh weather conditions.
Low Maintenance: It requires minimal upkeep, reducing long-term costs.
Aesthetic Appeal: The rustic, evolving look adds a unique industrial charm to any project.
Versatility: Suitable for a variety of architectural designs, from buildings to landscaping.
Cost-Effective and Eco-Friendly: Though initially more expensive, its durability and low maintenance make it a cost-effective choice, while its natural weathering process is environmentally friendly.
