The main principle of S355JOW weathering steel:
Add a certain amount of alloying elements in steel, such as, P, Cu, Cr, Ni, Mo, in order to increase resistance to air corrosion, under the influence of climatic conditions, in the base metal in the generation of an automatic protection of oxides, so that the surface of the steel to form a dense and strong adhesion to the protective film, hindering the rust to the diffusion and development of the protection of the rust layer of the substrate below, in order to slow down the rate of its corrosion. In the rust layer and the substrate between the formation of about 50μm ~ 100μm thick amorphous spinel-type oxide layer dense and good adhesion with the base metal, due to the existence of this layer of dense oxide film, preventing the atmospheric oxygen and water to the steel substrate penetration, slowing down the deep development of rusted steel materials, greatly improving the atmospheric corrosion resistance of steel materials. Weathering steel can be thinning use, exposed use or simplify the coating, and make the system of corrosion resistance life extension, labor saving and consumption reduction, upgrading of the steel, but also a modern metallurgy can be integrated into the new mechanism, new technology, new technology and make its sustainable development and innovation of the steel.
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S355JOW steel plate introduction
1, S355JOW belongs to the European standard weathering steel plate, weathering structural steel, that is, atmospheric corrosion-resistant steel, belongs to the low-alloy high-strength structural steel, according to its main characteristics are divided into high weathering structural steel and welded structural weathering steel.
2, S355JOW steel plate implementation standards: the implementation of EN10028-4: 2009 standards
3,Delivery state of S355JOW steel plate:Delivered in hot rolled, normalized or normalized rolled state, or delivery state can be specified according to technical requirements.
4,S355JOW steel plate thickness direction performance requirements: Z15, Z25, Z35.
5,S355JOW steel plate flaw detection requirements: one probe, two probe, three probe.
6,S355JOW steel plate Density: 7.85/m3.
7,S355JOW steel plate Rational weight formula: thickness * width * length * density.
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