Not fire-resistant steel heat when the temperature is below 150 ℃, the steel properties changed little. Therefore suitable for hot steel plant, but the heat radiating structure of the surface by about 150 ℃, to be used to protect the thermal shields. Temperature steel strength and elastic modulus decreased significantly at 300 ℃ -400 ℃, the temperature of steel at around 600 ℃, the strength of steel tends to zero. With special needs in the fire building, steel refractories must be protected in order to improve the fire resistance rating. Poor corrosion resistance of steel, especially in wet and corrosive media environment, it is easy to corrosion. General Steel To rust, galvanized or paint, and to regular maintenance. Right in seawater offshore platform structure, requires the use of "zinc anode protection block" and other special measures to corrosion. Low-carbon, energy saving, environmental protection, reusable steel buildings demolished almost no construction waste, steel can be recycled. Famous buildings in the world famous Eiffel Tower Steel Buildings (6) The Eiffel Tower was built in 1889 and is located in a hollow structure of the Eiffel Tower on the Champ de Mars in Paris, France, 300 meters high, 24 meters tall antenna Beijing steel attic, total height of 324 meters. As the Tata steel hollow structural steel processing factories, 57 meters above sea level, 115 meters and 274 meters of the three platforms for exploring Dongguan steel building, fourth floor platform 300 meters above sea level, located weather station. Top shelf antenna for television center in Paris. From the ground to the top of the tower is equipped with elevators and stairs, 710 steps. It is understood that the use of more than 1500 Tower root giant precast beams, 1.5 million rivets, 12000 steel castings, with a total weight of 7000 tons, from 250 workers took 17 months to build. Steel processing factory in Zhuhai _ _ steel construction steel structure provided by Peng Peng Jian Steel Co., Ltd., Dongguan City. Steel Co., Ltd., Dongguan City, Peng Jian (dgpengjian.cn) strong, credible, in Dongguan, Guangdong steel industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Peng built into the brilliant steel and you work for a better future!