The
application of 09cup weathering steel elements in the landscape is relatively common. Weathering steel is made of chromium, manganese, titanium and niobium on the basis of copper and phosphorus. Generally, E4301 or 4303 electrodes should be used.
The environmental protection of 09cup weathering steel plate is more popular in society today. At the stage when the steel plate is not long rusted, the naked eye cannot distinguish between genuine weather-resistant steel plates and ordinary hot-rolled steel plates. 1. It is necessary to refer to the steel mill’s warranty. The warranty requires the supplier to provide the original with the steel mill’s red seal as far as possible, so as to avoid the merchants from filling them with inferiority. The common materials of genuine weathering steel are 09cupcrnia, B480GNQR, etc. of Baosteel or Anshan Iron and Steel, and the materials of ordinary hot-rolled steel plates are
q235b, SPHC, etc. Genuine weathering steel has a clear and dense rust core layer, and the rust spots are tightly adhered to form a protective layer, which hardly loses rust when rubbed by hand; ordinary steel plate has a lot of rust, and even the whole piece of rust peels off and rust wears. Genuine weathering steel is biased towards reddish brown, while ordinary steel plate is biased towards dark black. Weathering steel has less rust water and smaller rust spots; ordinary steel plates have more rust water and rust spots are larger and thinner; ordinary steel plates have serious rust pillars and tear marks, and there are signs of blackening at the bottom of the workpiece.
09cup weather-resistant steel plate has good thickness, which can be thinned, saving more than 30% of overall cost. And this kind of fire resistance and weather resistance also have self-healing properties, that is, whether the steel is finished or welded, or after surface collision or fire in service use, its weather resistance and fire resistance can remain unchanged. This is common It is impossible to have steel and additional protective layer, and the benefits brought by it are difficult to estimate. It can be seen that the economic benefits of refractory and weathering steel are very significant and will make a contribution to the promotion and development of my country's steel structure industry. At present, the fire-resistant and weather-resistant steel developed by Katalor Industry has begun to be used in some domestic large-scale factories, residential buildings, and commercial buildings with fire-resistant and weather-resistant grades, and has been well received by steel structure processing, construction units and end users. The product has high dimensional accuracy, small thickness difference on the same board, flat surface, smooth surface, good paint performance, low carbon equivalent of steel plate, good welding performance, and low sensitivity to cold and hot cracks.
