Hot-rolled steel channel

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Product Description:

Channel is the section groove strip steel. Channel steel is used in the construction and machinery for carbon structural steel, steel steel section is complex, its sectional shapegroove. Channel steel is mainly used for building structure, the curtain wall engineering,mechanical equipment and vehicle manufacturing etc.. Request it has better welding, rivetingperformance and comprehensive mechanical properties in use. Steel billet production raw materials are carbon content not exceeding 0.25% of the carbon steel or low alloy steel billet.Product channel steel after hot forming, normalizing or hot-rolled state of delivery. Thespecifications to waist high (H) * leg width (b) * waist thick (d) millimeter number representation, such as 100*48*5.3, said waist height 100 mm, width of 48 mm steel legs,waist thickness was 5.3 mm, or 10# channel. Waist high the same channel, if there are several different wide legs and waist thickness also need to add a B C to be the difference in the types of the right, such as 25#a 25#b 25#c etc..

Classification

Channel can be divided into ordinary steel and light channel. Hot rolled ordinary channelspecifications for 5-40#. By both sides of supply and demand supply of hot rolled flexiblechannel protocol specifications for 6.5-30#. Channel steel is mainly used for building structure, vehicle manufacturing, other industrial structure and a fixed disk cabinet, steeloften used together with choices.

Channel steel according to shape and can be divided into 4 kinds: Leng Wan equilateral channels, Leng Wan scalene channel, Leng Wan edge channel, Leng Wan channel section with outer edge

In accordance with the steel structure theory, should be the channel steel flange force, that is to say the channel should be upright, not lying.

No.

With international chemical symbols for the element and its symbols to represent the chemical composition, in Arabia letter to indicate the contents of components:

Such as: China, Russia 12CrNi3A

Using a fixed number of bits to represent the steel series digital or digital; such as: the United States, Japan, 300 series, 400 series, 200 series;

Using the Latin alphabet and their sequence number, only that the use of.

The specification set

Channel steel specifications mainly used high (H), Tui Kuan (b), waist thickness (d) and othersize

Channel steel (3)

Said that at present domestic steel specifications from 5 to 40, that is, the correspondingheight of 5 to 40cm.

At the same height, light channel than common channel steel legs, waist narrow thin, light weight. 18 - 40, 5 - 16 for large channel, channel steel for medium channel. The importchannel indicate the actual size and related standards. Steel import and export orders generally is in determining the corresponding (carbon steel or low alloy steel) steel after,required the use specifications in the main. In addition to specifications, outside the channelwithout specific composition and performance series.

The delivery channel length is divided into fixed length, double length two, and the provisions of tolerance in the corresponding standard. The domestic channel length selection scope according to the specifications of different divided into 5 12M, 5 19m, 6 19m three. The importchannel length selection is generally in the range 6 to 15m.

China's steel imports more than it exports. Simple import and along with the complete engineering importing two channels. In recent years, China's coastal big port (Dalian, Tianjin,Qinhuangdao, Lianyungang etc.) in the new, expansion of oil, coal, grain and other bulkimport and export commodity automatic loading and unloading in the project, with the mainequipment is introduced at the same time, imports large channel is on the increase. The main production countries and regions as Japan, Russia, Western europe. Export channel mainly to Hong Kong and macao.

7 the appearance requirements

Surface quality and geometry of the channel of the allowable deviation are specified in the standard. General requirement of surface shall not use harmful defects, there shall be nosignificant reverse, provisions of channel wave bending (camber) related to allow surface shape value and various specifications channel parameters (h, B, D, t etc.) numerical,tolerance. The main performance of channel geometry is not true: angle, leg extended legand etc..

8 the main origin

Channel of China is mainly composed of several steel production, steel, iron, Tang Gang,Huang te, Maanshan Iron and steel, Bao Steel, Xuanhua Steel, Japan etc..




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Q:Standard for channel 20
Can check the hot-rolled ordinary channel GB707-88
Q:What is the weight of the national standard 8# channel steel?
Data from the GB/T 707-1988 dimension, shape, weight and tolerances
Q:What does channel specification "MQ-41" mean?
The raw material for producing channel steel is carbon or low alloy steel billets with a carbon content of not more than 0.25%. The finished channel steel is delivered by hot forming, normalizing or hot rolling. The specifications are expressed in millimeters of height (H) * leg width (b) * waist thickness (d), such as 100*48*5.3, which means waist height is 100 mm, leg width is 48 mm, waist thickness is 5.3 mm channel, or 10# channel steel. The same height of the channel, if there are several different leg width and waist thickness, also need to add a, B, C on the right side of the model to distinguish, such as 25#a, 25#b, 25#c and so on.
Q:What does channel C20 mean?
Represents 20# channel steel. C is the symbol of channel steel.
Q:How do you calculate the weight of 100 channel steel?
CAD drawing can also be used to calculate the cross-sectional area of 100 channel, or other ways to first calculate the cross section area of 100 channel.
Q:How is the hollow tempered glass mounted on the channel steel?
Installation method of hollow toughened glass:1, glass cutting: the original glass is usually colorless float glass or other colored glass, sun glass, tempered glass, laminated glass, the thickness of 3 mm to 12 mm, the glass must comply with the provisions of a superior product grade, GBll614, can be used after passing inspection. Glass cutting may be done by hand or by machine, but it shall be in accordance with size requirements. Such a procedure of workers in the operation process, should always pay attention to the glass surface without scratch, er uniform, no bubbles, slag and other obvious defects.2, glass cleaning and drying: glass cleaning must adopt the machine cleaning method, because manual cleaning can not guarantee cleaning quality. Check the glass without scratching before cleaning. In order to ensure the adhesion between sealant and glass, it is better to use deionized water. In addition, in order to ensure the use of water recycling, water conservation, water filtration can be used to ensure long-term use. After cleaning the glass to light through the inspection, inspection of glass surface is water, water stains and other stains, if there is water, water stains and other stains, need to machine running speed, heating temperature, air flow, brush clearance adjustment, to achieve the effect until well done. After washing the glass should be assembled within 1 hours into a hollow glass, in addition to ensure that glass and glass between the friction and scratch, it is best to have semi-finished glass storage car, between the glass and the film.3. The assembly of rubber strip type insulating glass and aluminum strip type insulating glass. Adhesive tape type insulating glass assembly:
Q:Do you have any width 20 cm wide? What's the model number and how much is it?
Height of 20 points, two models: 20 channel, height 200, leg width 73, waist thickness of 7, theoretical weight of 22.637 kg per meter; 20a, channel steel, height 200, leg width 75, waist thickness 9, theoretical weight of 25.777 kg.
Q:What calculates the endurance of a channel?
Like you type of calculation, bearing, according to choose the size of channel, find out its moment of inertia, and then use deflection formula to calculate whether you meet the load requirements. Do you want to get it available? What is the length required? How big is the load? These two parameters can help you check the strength is enough.
Q:How about the Y-Y moment of inertia in the form of hot rolled channel steel Iy?
The method of superposition of moments of inertia: the moment of inertia of multiple rectangles plus the moment of inertia of the four surfaces of the cornersEach of the deformed moments of inertia is equal to the sum of the two triangular moments of inertia and the sectorial moments of inertiaThe sectorial moment of inertia is used in integral calculus, and the examples of advanced mathematics are taken at random.
Q:What material is the channel steel bought in the steel market?
. Q255 and Q275 mass fraction of carbon steel is slightly high, high strength, good plasticity and toughness, can be welded steel, steel rolling, usually forming and plate structure and simple manufacturing machinery, connecting rod, gear coupling, pins and other parts.

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