What is the difference between weathering steel red rust and ordinary rust?

At present, many steel plates in life are weathering steel, manufactured, especially the landscape weathering steel frequently used in recent years, so why are the "weathering steel" of weathering steel red rust, and ordinary red rust steel plates? What difference does it make.

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Weather resistant steel plate has the characteristics of toughness, ductility, formability, welding, cutting, wear resistance, high temperature, fatigue and so on. The weather resistance is 2-8 times that of ordinary carbon steel, and the performance of the coating is 1.5-10 times that of ordinary carbon steel, which can be reduced and used, and can also be exposed or simplified. The steel has the characteristics of rust prevention, corrosion resistance, long service life, thinning, reducing parts consumption, saving manpower and energy, which is beneficial to parts manufacturers and users. And the recovery of the material can be 100% recycled without any maintenance, and the weathered steel does not require maintenance in the later period.



Red rust steel plate is the general term of steel plate, the rusty steel plate is called red rust, but because of different materials, the production and use of different processes, it is divided into weathering steel red rust steel plate and ordinary red rust steel plate.
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Common ground: 1. All surfaces show red rust. 2. Before rust, the surface should be oxidized. 3. Treat the red rust steel plate with natural rust, and the rust layer on the surface is not uniform. 4. All can be obtained by manual rust removal.



Different opinions: 1. Ordinary red rust steel plate is generally used Q235B and Q345B. These two materials are common weathering steel red rust steel plates, such as 09CU and SPA-H. 2. The color of ordinary red rust steel plate is deep red and tends to be dark red. The weather-resistant red rust steel plate has a bright color. 3. The weather-resistant rust layer of the steel red rust plate is stable and will not rust when touched by hand. When using ordinary red rust steel plates, yellow rust will appear on the hands, and a layer of rust and peeling will appear in the later stage of serious corrosion.
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