S355jowp Corten
S355JOWP Corten steel is a high-strength weathering structural steel that combines good mechanical properties with atmospheric corrosion resistance. Its alloy composition allows the surface to form a lapisan pelindung karat yang stabil, which reduces maintenance and extends service life.
- Keterangan
S355JOWP Corten steel is a type of weathering structural steel defined under the European standard for atmospheric corrosion-resistant steels. This material is designed to develop a patina karat pelindung bila terkena kondisi luar ruangan, which reduces the corrosion rate and increases long-term durability.
Because of its strength and corrosion resistance, S355JOWP is widely used in struktur arsitektur, jembatan, and outdoor steel constructions.
Mechanical Properties of S355JOWP Steel
S355JOWP belongs to the group of high-strength low-alloy structural steels. The material provides good mechanical strength while maintaining resistance to atmospheric corrosion.
| Milik | Nilai Khas |
|---|---|
| Kekuatan Hasil | ≥ 355 MPa |
| Kekuatan Tarik | 470 – 630 MPa |
| Pemanjangan | ≥ 20 % |
| Resistensi Dampak | Cocok untuk aplikasi struktural |
The relatively high yield strength makes S355JOWP suitable for load-bearing structural components and large outdoor structures.
Chemical Composition of S355JOWP
The corrosion resistance of weathering steel comes from its alloy composition. Elemen seperti tembaga, kromium, and nickel help form a stable oxide layer on the surface.
| Elemen | Konten Khas (%) |
|---|---|
| Karbon (C) | ≤ 0.16 |
| mangan (M N) | ≤ 1.50 |
| Silikon (Dan) | ≤ 0.50 |
| Fosfor (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.035 |
| Tembaga (Cu) | 0.25 – 0.55 |
| Kromium (Kr) | 0.40 – 0.80 |
| Nikel (Di dalam) | ≤ 0.65 |
These alloying elements help the steel develop a dense protective patina layer when exposed to weather conditions.
Key Characteristics of S355JOWP Weathering Steel
S355JOWP offers several advantages compared with ordinary structural steel:
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Ketahanan korosi atmosfer yang baik
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Kekuatan struktural yang tinggi
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Umur panjang di lingkungan luar ruangan
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Reduced need for painting or protective coatings
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Penampilan khas berwarna karat
Once the protective rust layer stabilizes, the corrosion rate becomes significantly lower than that of standard carbon steel.
Common Applications of S355JOWP Steel
Karena daya tahan dan penampilannya, S355JOWP weathering steel is commonly used in outdoor engineering and architectural projects.
Struktur Arsitektur
S355JOWP steel plates are widely used for:
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Fasad bangunan
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Exterior wall cladding panels
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Decorative architectural elements
Jembatan dan Infrastruktur
Weathering steel is commonly applied in:
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Bridge girders and structural beams
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Highway guardrails
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Outdoor structural supports
Desain Lanskap dan Perkotaan
S355JOWP steel is also used for outdoor landscaping components such as:
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Tepi taman
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Parut pohon
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Planters and retaining walls
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Patung luar ruangan
Aplikasi Industri
The steel is also used in railway equipment, kontainer, and outdoor industrial structures where long-term weather resistance is required.












