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Practical Basic Knowledge for Steel Temporary Bridge Engineering Companies

Classification of Steel Pipes

Classification by use — steel pipes for pipelines, steel pipes for thermal equipment, steel pipes for the machinery industry, steel pipes for petroleum and geological drilling, steel pipes for containers, steel pipes for the chemical industry, steel pipes for special purposes, and others. II. Seamless Steel Pipes

Long strip steel products with a hollow cross-section and no seams around the perimeter. Steel pipes have a hollow cross-section and are widely used as pipelines for conveying fluids, such as pipelines for transporting petroleum, natural gas, coal gas, water, and certain solid materials. Compared with solid steel such as round steel, steel pipes are lighter in weight while having the same bending and torsional strength, making them an economical cross-section steel material. They are widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipes, automobile transmission shafts, bicycle frames, and steel scaffolding used in building construction. Using steel pipes to manufacture ring-shaped parts can improve material utilization, simplify manufacturing processes, and save materials and processing time, such as rolling bearing rings and jack sleeves, which are now widely manufactured from steel pipes. Steel pipes are also indispensable materials for various conventional weapons; gun barrels and cannon barrels are all manufactured from steel pipes. Steel pipes can be divided into round pipes and shaped pipes according to the shape of the cross-sectional area. Since under the condition of equal perimeter, a circle has the largest area, round pipes can convey more fluid. In addition, the circular cross-section is subjected to more uniform stress when bearing internal or external radial pressure; therefore, the vast majority of steel pipes are round pipes. However, round pipes also have certain limitations. For example, under plane bending conditions, round pipes are not as strong in bending resistance as square and rectangular pipes. Some agricultural machinery frames, steel temporary bridge engineering company wooden furniture, etc., commonly use square and rectangular pipes.

How to Choose Subway Steel Supports Better?

When choosing building materials in the market, one should not only look at the overall use effect but also at the specific scope of application. Many people in the market now want to know how to choose subway steel supports better. This certainly depends on the actual situation. Generally, the scope of use is mainly in construction sites; subway construction also frequently uses such steel supports.

The best way to choose is to look at the overall market evaluation. When paying attention, we can see which company does better, or consider other aspects. From the overall management and transportation perspectives, everything is very simple and relatively convenient. Subway steel supports are now used more and more, and there is also a lot of subway construction, all of which require high-quality materials for more reasonable use.

In addition, in actual construction processes, many people also want to know whether it is the best. This kind of steel support is very convenient and simple to install and remove. Many people choose high-quality products when selecting. Although the product appears large, its actual use is very clear; its supporting role is also very good, which is enough to say that many subway and related construction industries now prefer it.

Anyone paying attention to and learning about subway steel supports wants to know the actual situation, and when choosing, we still need to see which ones are good. After all, on many occasions, unreasonable use will always cause many problems, and this material can now play a relatively large role.

Theoretical Weight Calculation Method Table Steel Temporary Bridge Engineering Company

Angle steel: weight per meter = 0.00785 * (side width + side width - side thickness) * side thickness

Round steel: weight per meter = 0.00617 * diameter * diameter (the same for rebar and round steel)

Flat steel: weight per meter = 0.00785 * thickness * side width

Steel pipe: weight per meter = 0.02466 * wall thickness * (outer diameter - wall thickness)

Steel plate: weight per meter = 7.85 * thickness

Brass pipe: weight per meter = 0.02670 * wall thickness * (outer diameter - wall thickness)

Copper pipe: weight per meter = 0.02796 * wall thickness * (outer diameter - wall thickness)

Aluminum checkered plate: weight per square meter = 2.96 * thickness

Specific gravity of non-ferrous metals: copper plate 8.9, brass plate 8.5, zinc plate 7.2, lead plate 11.37

The calculation formula for non-ferrous metal plates is: weight per square meter = specific gravity * thickness