Traditional Culture Encyclopedia - Lucky day inquiry - What's the difference between angle steel and angle steel? Are the materials of angle steel and angle steel the same?
What's the difference between angle steel and angle steel? Are the materials of angle steel and angle steel the same?
What's the difference between angle steel and angle steel?
A, it is the same material. Reinforced asbestos cement tile is a roofing waterproof material made of asbestos fiber and cement. From the specification, it can be divided into three types: big wave, medium wave and wavelet, and these three types of tiles are used to cover the roof with herringbone back tiles. This is an internationally recognized outdated building material. Its harm comes from its fibers, which are so tiny that they are almost invisible to the naked eye. When these tiny fibers are released, they can float in the air for a long time and be inhaled into the human body. Inhaled asbestos fibers can accumulate in the human body for many years, attach and deposit in the lungs, causing lung diseases.
B-angle steel, commonly known as angle iron, is a long strip steel with two perpendicular sides. There are equilateral angle steel and unequal angle steel. The width of both sides of an equilateral angle steel is equal. What is its specification in terms of side width? Side width? The side thickness is expressed in millimeters. Like what? 30? 30? 3? , which means an equilateral angle steel with a side width of 30mm and a side thickness of 3mm. It can also be expressed by model, that is, the number of centimeters of side width, such as? 3#。 The model does not refer to the dimensions of different side thicknesses in the same model, so the side width and side thickness dimensions of angle steel should be completely filled in the contract and other documents to avoid using the model alone. The specification of hot-rolled equilateral angle steel is 2 #-20 #
C, the chemical composition of angle steel belongs to the general structural steel rolling series, and the main inspection indexes are C, Mn, P, S. According to different brands, the content is different, with the approximate range of C < 0.22% and Mn: 0.30? 0.65%、P
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