Answers

• 
  What is the difference between stainless steel industrial plate and 2B plate?

  Stainless steel industrial plate usually refers to the product obtained from the steel mill after hot rolling. The surface of this plate is relatively rough and not shiny, and it is often called No. 1 surface.
  Stainless steel 2B plate is a cold-rolled plate that has been further processed. On the basis of No. 1 plate, a series of processes such as cold rolling, annealing and pickling are used to make the surface of the plate present an appropriate glossiness, which is neither mirror nor completely matte, which is what we usually call 2B surface.
  
  The main difference between them:
  Surface glossiness:
  The surface of stainless steel industrial plate is relatively rough and matte, while stainless steel 2B plate is further processed, and the surface has a certain glossiness and is more beautiful. This is the most intuitive difference between the two.
  Toughness and flatness:
  Because 2B plate has undergone more processing and treatment, it performs better in toughness and surface flatness. This makes 2B plate more advantageous in some application scenarios with high requirements for material performance.
  Price:
  Stainless steel industrial plate has a shorter processing process and relatively lower cost, so the market price is more affordable. The 2B plate has undergone more processing and has a higher cost, so the price is relatively high.
  Thickness:
  The thickness range of stainless steel industrial plates is large and can usually be customized within a wide range. The thickness of 2B plates is relatively precise and is usually selected within a certain range.

  
  
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  What is the difference between the two production processes of galvanized square tubes?

  Galvanized square tubes are divided into hot-dip galvanized square tubes and cold-dip galvanized square tubes according to the production process.

  
  Hot-dip galvanized square tubes are square tubes that are plated with a layer of zinc on the outer surface of the square tube through the hot-dip galvanizing process. The hot-dip galvanizing process involves pickling the square tube to remove surface impurities and then immersing it in the molten zinc liquid in the galvanizing pool so that the zinc liquid fully reacts with the surface of the square tube, thereby forming a uniform galvanized layer on the square tube. Its anti-corrosion performance is significantly higher than that of cold-dip galvanized square tubes. The excellent anti-corrosion performance is due to the protection of the zinc layer, which can effectively isolate the square tube from the external environment, prevent corrosion, and ensure that the square tube can maintain a long service life and good durability in various environments.
  
  The galvanizing process of cold-dip galvanized square tubes is carried out at room temperature. This type of pipe not only has similar anti-corrosion performance to hot-dip galvanized square tubes, but also shows its unique advantages in many aspects. First of all, the production cost of cold-dip galvanized square tubes is relatively low, and the price is more competitive. Secondly, its coating is uniform and delicate, and its appearance quality is excellent, which can meet customers' requirements for beauty. The surface of cold-dip galvanized square tube is relatively smooth and bright. The electroplating layer using the white passivation process is bluish white or white, with a slightly colored luster in the sun.

  
  
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  What is the difference between round steel and conventional steel?

  Material and shape
  Round steel: Round steel is a solid long steel strip with a circular cross section, usually made of carbon structural steel or alloy structural steel. Depending on the use, round steel can be divided into hot-rolled round steel, forged round steel and cold-drawn round steel. Its circular cross section allows round steel to have uniform force performance when subjected to loads such as pressure, bending and torsion.
  Conventional steel: Conventional steel covers common types of steel, including but not limited to steel plates, steel sections (such as angle steel, channel steel, I-beam), steel pipes, etc. These steels have different shapes to meet different engineering needs. The materials of conventional steel are also diverse, ranging from low-carbon steel to high-strength steel, and even stainless steel, alloy steel, etc., to meet the strength and corrosion resistance requirements of various application scenarios.
  
  Performance comparison
  Round steel usually has high strength and toughness, and can withstand large loads and deformations. At the same time, round steel has excellent processing performance and is easy to cut, weld and forge.
  Conventional steel exhibits different mechanical properties, corrosion resistance and welding properties depending on its specific type and material. For example, stainless conventional steel has excellent corrosion resistance and is suitable for harsh environments; high-strength conventional steel has higher yield strength and tensile strength and is suitable for structures that bear heavy loads.
  
  Differences in production processes
  Round steel is usually produced by hot rolling or forging. Hot-rolled round steel is made by heating the steel billet to a certain temperature and then rolling it multiple times on a rolling mill. Forged round steel is made by repeatedly hammering or extruding the steel billet through forging equipment to obtain the desired shape and properties.
  The production process of conventional steel is more diverse, including hot rolling, cold rolling, extrusion, welding and other methods.