Q390B steel plate is a kind of low-alloy high-strength structural steel, which not only has the characteristics of high-strength steel, but also belongs to the category of low-carbon steel. Q390B, with its excellent mechanical properties and wide range of applications, has become one of the indispensable materials in modern industry.

Q390B has a high yield strength, which means that it can maintain the stability of the structure when subjected to external forces and is not prone to plastic deformation. In addition, it also has good fatigue resistance, which gives it a long service life under cyclic loads. Q390B also exhibits high toughness and a low brittle transition temperature, maintaining good toughness even at low temperatures and reducing the risk of fracture.

In addition to mechanical properties, Q390B also has good cold forming properties and welding properties. It is easy to process into various shapes and sizes of components, and can maintain its excellent performance under different welding processes. This gives the Q390B greater flexibility and adaptability in the manufacturing process. In addition, Q390B also has good corrosion resistance and certain wear resistance, which can be used in harsh environments for a long time without being affected by corrosion and wear.

The implementation standard of Q390B steel plate is GB/T1591-2018, which specifies the requirements of its chemical composition, mechanical properties, smelting methods and delivery status. Depending on the application requirements, Q390B steel sheet can be delivered in hot rolled, controlled rolled, normalized, normalized and tempered, hot mechanical rolled (TMCP) or hot mechanical rolled and tempered state. These different delivery states enable Q390B steel plates to adapt to a variety of different processing processes and application scenarios.

When the steel plate is required to have thickness direction performance, the Q390B steel plate will be added to the symbol Z15, Z25, Z35 representing the thickness direction performance level after the grade. These symbols indicate the level of performance of the steel plate in the direction of thickness, ensuring its reliability and safety in a specific application.

The thickness range of Q390B steel plate is wide, and the thickness range can be produced from 8mm to 700mm, where the material performance is guaranteed to 400mm. The steel plate can also be zero cut according to the need to cut into shaped parts to meet the needs of different projects. The smelting method of Q390B steel plate includes converter or electric furnace smelting, and can be refined outside the furnace if necessary to ensure the purity and uniformity of the steel.

Regarding the size, shape, weight and allowable deviation of Q390B steel plate, they shall comply with the provisions of the corresponding standard GB/T709. This standard specifies the geometric parameters and tolerance range of the steel plate to ensure the consistency and interchangeability of the product.

Q390B steel plate is widely used in power tower, all kinds of lifting cranes, heavy vehicles, oil derrick, high temperature fan, large shovel, dump truck and drilling rig, coal mine hydraulic support, steel structure and other fields. Its excellent performance and reliability make it the material of choice in these fields, providing a solid foundation and guarantee for all types of engineering.

The hardness of steel is closely related to its internal structure, especially the dislocation in the structure. Dislocation is a kind of microscopic defects in steel, and their existence and movement play a key role in the deformation behavior of steel.

When the steel deformation occurs, it depends on the dislocation slip in the steel to achieve. Dislocation sliding is the process by which a dislocation moves through the crystal structure, resulting in plastic deformation of the steel. However, when the dislocation density is very high, entanglement can occur between the dislocations, and this entanglement can inhibit the movement of the dislocation, resulting in a higher hardness of the steel at the macro level.

Rolling process is an important part of steel processing, it will produce a lot of dislocation in steel. These dislocations become entangled with each other, making the steel more difficult to deform, which leads to an increase in hardness. However, the dislocation is not static, they can cancel each other in the process of thermal motion, resulting in a reduction in dislocation density, so that the steel softening.

Temperature has a significant effect on the behavior of the dislocation. At high temperatures, the dislocations are more likely to cancel each other out, so the softening effect is more pronounced. This is also why the hardness of hot-rolled steel is generally lower than that of cold-rolled steel. However, if the content of alloying elements in the steel is high, and the hot rolling cooling rate is fast, the cooled steel may be transformed into martensite. Martensite is a structure with high strength and hardness, and there are also a lot of dislocations in it, which will make the overall hardness of the steel higher. However, under normal circumstances, hot-rolled steel will inhibit the production of martensite by controlled cooling, so that it will not show higher hardness.

Compared with hot rolling, cold rolling is carried out at a lower temperature, which allows cold rolled steel to obtain better surface quality and dimensional accuracy. However, lower rolling temperatures also greatly increase the rolling stress required during rolling, so the thickness of cold-rolled steel is usually smaller. Hot rolled steel is more suitable for the production of medium and thick plate products.

At the end of cold rolling, the internal stress and hardness are usually reduced by heat treatment. This heat treatment can adjust the structure and properties of the steel so that it meets the required requirements. Therefore, cold rolled steel does not show high hardness.

As for why the cold-rolled plate will make people feel softer, I think it may be because the cold-rolled plate is thinner than the hot-rolled plate, and the structural stiffness is poor, so it appears softer in the feel. But in fact, the hardness difference between cold-rolled and hot-rolled plates mainly depends on their processing technology and internal organizational structure.

Basic concepts:

Hot rolling raw material continuous casting slab or blooming slab is used as raw material, heated by stepping furnace, dephosphorized by high pressure water into roughing mill, roughing mill through cutting head, tail, and then into finishing mill, implementing computer-controlled rolling, after the final rolling, laminar cooling (computer-controlled cooling rate) and winding machine to become straight coil. The head and tail of the straight hair curl are often tongue and fishtail, the thickness and width accuracy are poor, and the edge often has defects such as wave shape, fold edge and tower shape. The coil weight is heavy, and the inner diameter of the steel coil is 760mm. (The general pipe industry likes to use.) After finishing lines such as cutting the head, cutting the tail, cutting the edge and straightening and leveling for multiple passes, the straight hair coil is then cut or rerolled to become: hot rolled steel plate, flat hot rolled steel coil, longitudinal cutting strip and other products. Hot rolled finishing coil is formed after pickling and oil coating.

Advantages of hot rolling:

It can destroy the casting structure of the ingot, refine the grain of the steel, and eliminate the defects of the microstructure, so that the steel structure is dense and the mechanical properties are improved. This improvement is mainly reflected in the rolling direction, so that the steel is no longer isotropic to a certain extent; Bubbles, cracks and looseness formed during pouring can also be welded under high temperature and pressure.

Cons:

1. After hot rolling, the non-metallic inclusions (mainly sulfides and oxides, as well as silicates) inside the steel are pressed into sheets, and the phenomenon of lamination (sandwich) appears. Delamination greatly worsens the tensile properties of steel along the thickness direction, and may cause interlayer tearing when the weld is contracted. The local strain induced by weld contraction often reaches several times of the yield point strain, which is much larger than that caused by load.

2. Residual stress caused by uneven cooling. Residual stress is the internal self-equilibrium stress in the absence of external force. Hot-rolled steel of various sections has such residual stress. The larger the section size of general steel, the greater the residual stress. Although the residual stress is self-equilibrium, it still has a certain effect on the performance of steel members under external forces. Such as deformation, stability, anti-fatigue and other aspects may have adverse effects.

Cold rolling with hot rolled steel coil as raw material, after pickling to remove the oxide, cold continuous rolling, the finished product is rolled hard coil, because of the cold hardening caused by continuous cold deformation, the strength and hardness of the rolled hard coil increase, the toughness and plastic index decline, stamping performance deteriorates, can only be used for simple deformation parts. Rolled hard coil can be used as raw material in hot dip galvanizing plant, because hot dip galvanizing units are equipped with annealing lines. The roll weight is generally 6~13.5 tons, and the inner diameter of the steel coil is 610mm. Generally, the cold continuous rolling plate and coil should be deannealed by continuous annealing (CAPL unit) or cover furnace to eliminate the cold hardening and rolling stress, and achieve the mechanical properties specified in the standard. The surface quality, appearance and dimensional accuracy of cold-rolled steel plate are superior to those of hot-rolled plate.

The advantages of cold rolling: fast forming speed, high yield, and no damage to the coating, can be made into a variety of cross section forms to meet the needs of the conditions of use; Cold rolling can produce great plastic deformation of steel, thus increasing the yield point of steel.

Cons:

1. Although there is no hot plastic compression in the molding process, there is still residual stress in the section, which will inevitably affect the overall and local buckling characteristics of the steel;

2. The cold-rolled steel style is generally an open section, which makes the free torsional stiffness of the section low. It is easy to appear torsion when bending, and easy to appear bending and torsional buckling when pressurized, and the torsional resistance is poor;

3. The wall thickness of cold-rolled steel is small, and it is not thickened at the corner of the connection of the plate parts, and the ability to withstand local concentrated load is weak

The main differences are:

1. Local buckling cold rolling is better than hot rolling. The cold-rolled steel allows local buckling of the section, which can make full use of the bearing capacity of the bar after buckling. Hot rolled steel does not allow local buckling of the section.

2, the type of local residual stress is different. The causes of residual stress in hot-rolled steel and cold-rolled steel are different, so the distribution of residual stress on section is also very different. The residual stress distribution on the section of cold-formed thin-wall steel is curved, while the residual stress distribution on the section of hot-tied or welded steel is thin film.

3, anti-torsion hot rolling is better than cold rolling. The free torsional rigidity of hot-rolled steel is higher than that of cold-rolled steel, so the torsional resistance of hot-rolled steel is better than that of cold-rolled steel. 4. In appearance, hot-rolled black, indentation, irregular surface and uneven edge; Cold rolling is the opposite. From the appearance, the surface of cold-rolled steel is smooth, without indentation and oxidation, the color is usually silver-white, the texture is fine and the edge is neat. The surface of hot-rolled steel is rough, there is an oxide skin, the color is darker, such as brown or black brown, and sometimes there is a pattern. The edges may not be as neat as cold rolled steel, and the shape may not be as regular. During the rolling process, the surface of hot-rolled steel is subjected to extremely high pressure and temperature, so indentation with poor toughness may occur.

Ordinary medium and thick steel plate: Advantages: smooth surface, good quality, easy processing, relatively low price. Disadvantages: internal bubbles, impurities, bad welding, poor bearing capacity, not suitable for use as parts that need to withstand gravity. General carbon steel sedative steel plate: Advantages: good surface quality, less impurities, uniform force, good welding performance. Disadvantages: More expensive. Low alloy structure steel plate: Advantages: excellent performance, light weight. Disadvantages: More expensive. The advantages and disadvantages of various steels are as follows: ordinary medium and thick steel plate: Advantages: smooth surface, good quality, easy processing, relatively low price. Disadvantages: internal bubbles, impurities, bad welding, poor bearing capacity, not suitable for use as parts that need to withstand gravity. General carbon steel sedative steel plate: Advantages: good surface quality, less impurities, uniform force, good welding performance. Disadvantages: More expensive. Low alloy structure steel plate: Advantages: excellent performance, light weight. Disadvantages: More expensive. Welding structure with weather-resistant steel plate: Advantages: welding performance and weather resistance are very good, and it is widely used in railway, bridge and other areas that need long-term exposure to the atmosphere. Disadvantages: The production process requirements are very high, and the process is slightly poor can not produce a good weather resistant steel plate. Pattern steel plate: Advantages: good decorative performance, anti-slip effect. Disadvantages: The production process is complex, the price is expensive, and the mechanical properties are not high. Welding structure with weather-resistant steel plate: Advantages: welding performance and weather resistance are very good, and it is widely used in railway, bridge and other areas that need long-term exposure to the atmosphere. Disadvantages: The production process requirements are very high, and the process is slightly poor can not produce a good weather resistant steel plate. Pattern steel plate: Advantages: good decorative performance, anti-slip effect. Disadvantages: The production process is complex, the price is expensive, and the mechanical properties are not high.

Hot galvanized sheet is hot rolled galvanized sheet, cold galvanized sheet is cold rolled galvanized sheet. From the material point of view, the composition of the two galvanized sheets are basically similar, the difference is that the cold galvanized sheet is thinner than the hot galvanized sheet, the surface quality is better, the process is more complex, and the price is higher. From the process point of view, the steel is rolled by hot rolling, rolled into a certain thickness of the plate, such as the thickness of 10mm or so, if the user has no higher requirements for the surface of the plate, thickness, mechanical strength, it can be processed as a finished product, such as galvanized, sold directly, is a hot plate. If there are higher requirements for the plate, then the hot-rolled plate is sent to the cold rolling line for re-processing, after pickling, annealing, re-rolling and other processes, to get a thinner, smooth surface and better mechanical properties of the cold-rolled plate.

1. Different references

1. cold binding plate: hot rolled coil as raw material, at room temperature under the recrystallization temperature to stop rolling products.

2. galvanized plate: refers to the appearance of a layer of zinc plated steel plate.

Second. different characteristics

1. cold binding plate: because it does not stop heating, there is no pitting and oxide sheet defects that are often presented in hot rolling, and the appearance is good and the brightness is high. Moreover, the dimensional accuracy of cold-rolled products is high, and the performance and organization of products can meet some special application requirements, such as electromagnetic properties and deep drawing properties.

2. galvanized sheet: Galvanized sheet due to the different treatment methods in the plating process, the appearance of the state is different, such as ordinary zinc flowers, fine zinc flowers, flat zinc flowers, zinc flowers and phosphating treatment appearance. The German code also rules for appearance levels.

Three. different uses

1. cold tie plate: mostly used in automobile manufacturing, electrical products and so on.

2. Galvanized sheet: mainly used in construction, light industry, automobile, agriculture, animal husbandry, fishery and commercial industries. The construction industry is mainly used for the manufacture of anti-corrosion industrial and civil building roof panels, roof grilles, etc. The light industry uses it to manufacture home appliance housings, civil chimneys, kitchen utensils and so on.

"Galvanized sheet 275g/㎡" means that the sum of the double-sided galvanized amount of the galvanized sheet per square meter area is 275 grams. The zinc flowers of hot dip galvanized steel plate are larger and more obvious, called "zinc flowers", and the zinc flowers are not fine enough, called "no zinc flowers".

What does having flowers and no flowers mean which is more expensive?

The zinc flowers of hot dip galvanized steel plate are larger and more obvious, called "zinc flowers", and the zinc flowers are finer and less obvious, called "no zinc flowers".

The hot plate substrate is generally made of zinc flowers, the cold plate substrate is generally made of no zinc flowers, and the cold plate is made of no zinc flowers, the surface is more smooth and smooth, the hardness is low, the elongation is high, the directional consistency is good, and the price is more expensive.

Galvanized sheet flowers and flowers are differentiated according to the surface state of galvanized sheet, generally weak eye will know, the surface has a pattern is flowers, there is no flowers. Flowers and no flowers have nothing to do with the material. The material depends on the substrate used for galvanizing, such as Q195, Q345, SPCC and so on. There is also no relationship between thickness and presence of zinc flowers.

There is a galvanized sheet, that is, the surface of the galvanized sheet is printed with a pattern, the appearance looks very bright, beautiful, and is generally used to make home appliance shells, buckets, and so on. There is no pattern on the surface of the flowerless galvanized sheet, which looks not as bright as the flowered galvanized sheet, dark color, and cold plate. There is no difference in performance, mainly in appearance.

There is a flower is the surface of the board has a pattern like a leaf, but also divided into small zinc flowers with large zinc flowers, no flowers is like aluminum plate, flat what pattern is not there

The main materials of Marine steel plates are carbon steel and alloy steel.

First, carbon steel ship plate

Carbon steel mainly refers to ordinary steel with carbon content between 0.05-2.0%. Carbon steel ship plate is widely used in various types of ships, which is characterized by high strength, good toughness, good weldability and low cost. In addition, the reliability of carbon steel materials is high and can withstand strong hot and cold deformation, which is necessary for Marine steel plates.

The main disadvantage of carbon steel ship plates is that they are susceptible to corrosion by seawater and air, so special anti-corrosion treatment is required, including painting and the use of anti-rust coatings. At the same time, the service life of the carbon steel ship plate is also relatively short, and it needs to be replaced frequently.

Second, alloy steel ship plate

Compared with carbon steel, alloy steel ship plate has lower carbon content and adds a certain proportion of alloying elements, such as manganese, silicon, chromium, tungsten, molybdenum, etc., to increase the strength and corrosion resistance of steel. Alloy steel ship plates are more resistant to corrosion and last longer than carbon steel ship plates.

Alloy steel ship plate has the following characteristics:

1. High strength: The addition of alloying elements can improve the strength of steel and enhance the carrying capacity.

2. Good corrosion resistance: the alloy elements such as chromium not only increase the strength of the steel, but also form a dense chromium oxide film, which can prevent further corrosion.

3. Good cold working performance: compared with ordinary steel, alloy steel can better withstand strong hot and cold deformation, and it is not easy to produce surface cracking, fracture and other phenomena.

The choice of Marine steel plate material depends on many factors such as the ship's use environment, transportation volume and economic cost. Factors such as physical and chemical properties, corrosion resistance, cost and processing difficulty need to be considered when selecting materials.

In the process of welding, cracks, pores or softened structures are easy to appear inside the molten core. Especially in the spot welding process of galvanized steel plate, if the welding specification is not reasonable, it may lead to some problems. First, some zinc and zinc-iron alloys may remain in the joint. These residues may form fine cracks or pores in the process of crystallization. This is because the high temperature during the welding process will cause physical or chemical reactions between zinc and zinc-iron alloys, which changes the physical properties of the molten core, making it more prone to cracks or pores. Secondly, if the residual zinc is more, it may also form softened tissue. This is because zinc reacts with the steel matrix during the welding process to form a zinc-iron alloy, which is lower in hardness and strength than steel, so it can lead to the softening of the molten core.

What is the chemical composition of Alloy 600?

The chemical composition of Alloy 600 is as follows:

Nickel (Ni) : Minimum value is 72%

Chromium (Cr) : The minimum value is 14%, the maximum is 17%

Iron (Fe) : Minimum value is 6.0%, maximum value is 10.0%

Carbon (C) : A maximum of 0.15%

Manganese (Mn) : Maximum value is 1.0%

Silicon (Si) : The maximum value is 0.5%

Copper (Cu) : The maximum value is 0.05%

Aluminum (Al) : A maximum of 0.3%

Titanium (Ti) : A maximum of 0.3%

Boron (B) : Maximum value is 0.006%

Phosphorus (P) : Maximum value is 0.015%

Sulfur (S) : Maximum value is 0.015%

Hot-dip galvanized channel steel, also known as hot-dip zinc channel steel and hot-dip galvanized channel steel, is an effective way to prevent metal corrosion. It is to immerse the channel steel after rust removal into the melting zinc liquid about 440~460℃, so that the surface of the channel steel is attached to the zinc layer, so as to play the purpose of anti-corrosion.

Zinc-steel balcony guardrail has the following characteristics:

1. welding free assembly design, quick and simple installation.

2. four layers of anti-corrosion treatment, more than 20 years of service life, to solve the traditional products in a short time of rust, powder, cracking and other problems, eliminating product maintenance and update costs.

3. good decorative, rich color, to meet the individual needs of different customers.

4. environmental protection, does not pollute the environment, to solve the problem of ordinary products polluting buildings.

5. good flexibility, the rigidity and flexibility of the substrate make the guardrail products have better impact resistance.

6. electrostatic spraying of the surface of the imitation pond porcelain process, so that the guardrail products have good self-cleaning performance, rain wash and water gun spray can be clean as new.

7. buried installation mode and foot plate installation, that is, save your building foundation costs, but also save land resources.

8. good weather resistance, salt spray resistance and moisture and heat resistance, suitable for use in different regions. Steel stamping accessories, stamping guardrail accessories 32t connector 35t connector 40t connector 45t connector U-card 30*40LN bracket 35LN bracket 40 several brackets ð

304 stainless steel plate and Q345 carbon steel plate can be welded. The welding of stainless steel and Q345 belongs to the welding between low carbon steel and austenitic stainless steel in this kind of dissimilar steel welded joint, due to its working conditions have intergranular corrosion and stress corrosion problems, usually choose E309 type welding material, but when the welding joint is in a higher temperature environment (design temperature ≥315℃), In order to prevent the migration of carbon during the working process, welding materials with a high nickel alloy content (such as InCONel 182 electrode, etc.) are usually used.

As a widely used material, stainless steel has many excellent performance characteristics. First of all, the corrosion resistance of stainless steel is very good. Due to its chromium element, the stainless steel surface forms a dense chromium oxide protective film, which effectively prevents the metal from contacting with corrosive media such as air and water, thus significantly extending the service life of the material.

Secondly, stainless steel has good high temperature resistance. Under high temperature environment, stainless steel can still maintain stable performance and is not easy to deform or melt. This makes stainless steel in the industrial field has a wide range of applications, such as the manufacture of stoves, boilers, heat exchangers and other equipment.

In addition, stainless steel also has good strength and hardness. Its high strength and high hardness make the stainless steel perform well when bearing heavy loads and shocks, and it is not easy to break or deformation. Therefore, stainless steel is often used in the production of building structures, auto parts, medical equipment and other fields.

In addition, stainless steel also has good machinability and weldability. It can be cut, stamped, bent and other operations through various processing processes, and is easy to weld with other metal materials, which facilitates the manufacture and maintenance of products.

Finally, stainless steel also has a beautiful and generous appearance. Its smooth surface and silver-white color make it an ideal decorative material, which is widely used in kitchen utensils, home appliances, architectural decoration and other fields.

In summary, stainless steel shows excellent performance characteristics in corrosion resistance, high temperature resistance, strength and hardness, machinability and weldability, as well as aesthetics, making it an indispensable and important material in many fields.

Color fingerprint-free stainless steel plate with easy to clean the surface stains, do not need metal cleaning agents, some chemical agents will make the stainless steel surface black; Moreover, it is not easy to stick handprints, dust, feel delicate, and has super fingerprint resistance and anti-fouling effect.

When the color fingerprint-free stainless steel plate is used, it should also be noted that the transparent film layer without fingerprints can directly protect the metal surface from being easily scratched, because the surface electroplated oil has good film property, high hardness, and is not easy to peel, powder, yellowing, etc.; If the color fingerprint-free stainless steel plate is processed by fingerprint-free technology, the texture of its appearance will be stronger, it will have an oily moistening, feel more soft, and it can better retain its good metal texture.

201L stainless steel is an austenitic chromium-nickel-manganese stainless steel known for its excellent corrosion resistance, high ductility and low carbon content. The composition of 201L stainless steel consists of approximately 17-19% chromium, 4-6% nickel and 1-2% manganese, and a small amount of nitrogen is added to enhance its mechanical properties. Compared to other stainless steel grades, the carbon content is reduced, ensuring improved solderability and resistance to intergranular corrosion. The combination of these elements produces stainless steel alloys that are not only highly resistant to various corrosive environments, including acidic and alkaline conditions, but also exhibit excellent formability, making them ideal for a variety of manufacturing processes. Its properties make 201L stainless steel ideal for applications in industries such as construction, automotive and kitchenware, where durability and oxidation resistance are critical.

202 stainless steel is a popular multifunctional alloy known for its excellent composition and performance characteristics. It is mainly composed of chromium, nickel, manganese and nitrogen, and has excellent corrosion resistance and oxidation resistance, making it ideal for a variety of industrial and household applications. This austenitic stainless steel also has excellent toughness, strength and formability, allowing it to be easily machined into different shapes and structures. In addition, the addition of nitrogen enhances its mechanical properties, making it more durable and stronger than other stainless steel grades. With so many features in combination, 202 stainless steel has excellent performance in different environments, making it a reliable choice for a variety of buildings, kitchenware, automotive parts, and many other uses.

Some of the main advantages of 316 stainless steel:

Heat and cold resistance: 316 stainless steel performs well at temperatures up to 800°C.

Rust and wear resistance: Compared with other stainless steel grades, 316 has excellent rust and wear resistance.

Corrosion resistance: Adding molybdenum to 316 stainless steel can improve its resistance to acid, alkali and chloride pitting.

Easy to form and weld: 316 stainless steel is easy to weld with TIG or MIG welding and does not require post-weld annealing. After annealing, it is non-magnetic. 316 stainless steel can also be easily formed by braking or rolling molding.

Durability: It has a tensile strength of 515 MPa and maintains its corrosion resistance with minimal maintenance.

Hygiene: This grade of stainless steel is ideal for hygienic applications as it is easy to clean and disinfect.

Sustainability: 316 stainless steel is 100% recyclable.

The main use of galvanizing is to prevent metal surface corrosion and oxidation.

Mainly used in the following fields:

Construction: Galvanized steel is widely used in the construction industry, such as building frames, roofs and walls. This is because galvanized steel has corrosion resistance and durability, which can extend the service life of the building.

Automotive industry: Galvanized steel is widely used in the automotive manufacturing industry, such as the manufacture of body and chassis. This is because galvanized steel can prevent the corrosion and oxidation of metal parts of the car, thereby extending the service life of the car.

Electrical industry: Cable tubes and cable jackets are usually made of galvanized steel pipes. This is because galvanized steel pipe has corrosion resistance and durability, and can be used in different environments for a long time.

Agriculture and aquaculture: Galvanized steel wire mesh and galvanized steel pipe are widely used in the agriculture and aquaculture industry, such as for fences, poultry houses and livestock houses. This is because galvanized steel wire mesh and galvanized steel pipe can prevent rust and corrosion, thereby extending the service life.

Machinery industry: Galvanized steel plates and galvanized steel pipes are widely used in the machinery manufacturing industry, such as the manufacture of mechanical parts and pipes. This is because galvanized steel plates and galvanized steel pipes have good anti-corrosion properties, which can extend the service life of mechanical equipment.