Indaten®
Weathering steel
Indaten® range
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Website newsIndaten® and Arcorox®: self-protecting steels with raw aesthetics
Since the 1970s, the use of weathering steels, also known as corten or COR-TEN steels (for corrosion resistance and tensile strength), has spread through Europe. Engineers appreciate its corrosion resistance in combination with high strength steels. Weathering steels help reduce maintenance costs while lightening structures - especially useful for bridges. Architects like the expressiveness of this material (often used for facades) and its ability to fit into urban landscapes and natural environments. Additionally, the environmental footprint is greatly improved with the use of weathering steels due to the absence of coating. This article will describe the processes leading to the self-protecting behaviour of weathering steels.
Technical article
Technical information
Indaten® is a structural steel with improved resistance to atmospheric corrosion, forming a changing protective patina that evolves with the environment.
Dimensions: from 1.7 up to 80 mm thick; for thinner thicknesses: 0.5 to 2 mm thick
Mill finish for coils and sheets: pickled up to 7 mm thickness
Surface preparation: pickling and degreasing in order to obtain a finely grained patina
Coating: excellent adhesion of organic coating; the protective layer prevents rust propagation under the paint layer
Assembling: by welding or riveting and bolting with Indaten® or stainless steel parts
Welding: excellent weldability with all the usual welding processes.
Grades:
For Hot Rolled steel: Indaten® 355A & Indaten® 355D
For Heavy Plate: Indaten®355H
For Cold Rolled steel: Indaten® HC315WP
Recommendations: not to be exposed to condensation, repeated soiling, chlorine, or a marine atmosphere.
Useful information
MoreBest in class
Self-protecting steel with raw aesthetics
Ideal steel for building exteriors, facades, and structures of buildings and bridges
- Appealing aesthetics
- Self-protection requiring no maintenance
- Excellent corrosion protection when post painted
- Wide product range from thin thickness to thick plates
- Large palette of applications from buildings, bridges to perforated metal and dust collectors
- High-longevity
- Eco-friendly and 100% recyclable
Attractive, aesthetically pleasing appearance
- Authentic, natural colour
- Evolving patina over time
- In harmony with natural and urban environments
Economic advantages
- No need to re-protect, no painting costs
- Long term durability and no maintenance costs
- No maintenance = no disturbance: Bridges and infrastructure do not need to be closed to maintain the weathering steel
Processing
- Wide product range from thin thickness to thick plates
- Easy to process with the same tools as structural steel
- Welding consumables available
- No extra processing or equipment costs
Design and conception
- Similar standards (for example, Eurocodes) to structural steels
- Similar calculation tools
- Speed of construction
Sustainability
- No waste management needed on site when repainting is needed
- No additional corrosion protection needed, no repainting
- No volatile organic compounds (VOCs) emitted to air or water during site operation
- Low carbon footprint