Hot-dip galvanized pipe is a special steel pipe, its surface is covered with a layer of galvanized layer, which is mainly to improve the corrosion resistance of the steel pipe. This steel pipe is mainly divided into two types: hot dip galvanized and electric galvanized. Among them, the coating of hot galvanizing is thicker, and the cost of electric galvanizing is lower, but the surface may not be as smooth as hot galvanizing.

The production process of hot-dip galvanized pipe involves the reaction of molten metal with iron matrix to form an alloy layer. In this way, the substrate and the coating can be tightly bonded together. Specifically, the process of hot dip galvanizing begins with pickling the steel pipe to remove the iron oxide on the surface of the steel pipe. After pickling, the steel pipe is washed in an aqueous solution containing ammonium chloride or zinc chloride before being fed into a hot dip bath. The advantages of hot dip galvanizing lie in its uniform coating, strong adhesion and long service life. In this process, the steel tube matrix and the molten bath will undergo complex physical and chemical reactions to form a corrosion-resistant zinc-iron alloy layer. This alloy layer is closely combined with the pure zinc layer and the steel tube matrix, and therefore has strong corrosion resistance.

In practical applications, the iron pipes commonly used in gas, greenhouses and heating systems are also galvanized. However, when the galvanized pipe is used as a water pipe, a large amount of rust and scale may be produced in the pipe. This will not only contaminate the sanitary ware, but also may breed bacteria because the tube walls are not smooth. In addition, rust may also lead to high levels of heavy metals in water, posing a serious threat to human health. Therefore, from the 1960s and 1970s, developed countries in the world began to develop new pipes and gradually banned the use of galvanized pipes. China's Ministry of Construction and other relevant departments also issued a clear document in 2000, prohibiting the use of galvanized pipes. Now, the cold water pipe in the new community has rarely used galvanized pipe, but the hot water pipe in some communities still uses galvanized pipe.

When galvanized sheet and galvanized steel are used in high temperature environment, the zinc layer on their surface may be spalling phenomenon. This peeling will not only affect the overall appearance of the material, but also may cause certain pollution to the use of the environment. What's more, during the cooking process, if the food comes into direct contact with these peeling zinc layers, the zinc element may react chemically with some of the ingredients in the food.

This reaction may cause changes in the taste, color or nutritional value of the ingredients, and may even produce substances that are harmful to the human body. Therefore, from the point of view of health and safety, galvanized sheet and galvanized steel are not suitable for cooking purposes.

In contrast, stainless steel POTS are a more ideal choice for cooking utensils. Stainless steel POTS are usually chrome plated or porcelain plated surface treatment. Chrome plating can increase the corrosion resistance and wear resistance of the stainless steel pot, so that it can remain bright as new during long-term use. The porcelain plating can not only increase the beauty of the pot, but also further improve its non-stickiness and easy cleaning, so that the cooking process is more convenient and hygienic.

To sum up, although galvanized sheet and galvanized steel have their unique application value in some industrial fields, in the field of cooking, their shortcomings make them not suitable for cooking utensils. The stainless steel pot has become the preferred material in the cooking field because of its excellent performance and safety.

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.

Galvanized strip pipe is a kind of steel pipe made from cold-rolled galvanized strip steel, which is formed by cold bending and then welded by high frequency. It is characterized by strong protective effect and strong corrosion resistance. Let's introduce the production process of galvanized steel pipe.

1. Feeding process

The first process is the feeding process, the galvanized strip is fixed on the material rack; Convenient to put the strip steel into the storage box for the unit to use, our company spent a lot of money to build MES system, above the production information, production information, warehousing information. Realize paperless office, information sinks to every process, so that employees have first-hand information in real time. Raw materials enter the storage box to ensure continuous operation of the unit.

2. The second process of forming welding zinc supplement process is forming welding zinc supplement process. The strip steel is transformed into steel pipe by forming roll. Next up is the welding and scab removal process. We adopt the more advanced ERW welding process in China, the main principle is to use the skin effect and proximity effect of high-frequency welding, so that the surface metal of the weldment to be welded can be heated quickly to achieve welding. Its advantage is that the heat affected zone of the weld is small, the heating speed is fast, and the welding speed and quality are improved. This process plays a key role in the corrosion resistance of the weld of the steel pipe. We use 2 zinc wires with a diameter of 1.5mm and a zinc content of 99.99% to replenish the weld with zinc to ensure the corrosion resistance of the weld to the maximum extent. With this process, we can ensure that the weld is completely invisible on the outside of the steel pipe, and the corrosion resistance of the weld after our treatment is completely consistent with the other parts of the steel pipe.

3. Set the straight process

The third process is the sizing and straightening process, the adjustment of the welded billet shaping roller can ensure the outer diameter accuracy of the steel pipe, or the round pipe is changed into a square tube, and the straightening roller can ensure the straightness of the steel pipe.

4. Flying saw sawing process

The fourth process is the sawing process, when the length meets the parameter requirements, the flying saw will automatically cut, we use the latest generation of high-speed flying saw, cutting speed can reach 150 meters -180 meters/minute; To ensure that the pipe end interface is more flat to the maximum extent, more convenient for later end customers to use.

5. The fifth process of weld inspection process is the weld inspection process. Our product quality control is quite strict. The staff will single out the unqualified products, and we will downgrade the unqualified products.

6. Inkjet marking process

The sixth process is the inkjet printing process, our company uses France's more advanced inkjet machine, which is characterized by clear inkjet, not easy to fade. Our product brand name, slogan and product implementation standards are printed on each steel pipe to ensure that each steel pipe can be reflected.

7. Passivation process

The seventh process is passivation process, in the passivation process we have our own invention patent - galvanized pipe passivation liquid automatic spraying system, to ensure that the passivation liquid 360° uniform adhesion, high passivation efficiency, beautiful outside. Can meet the salt spray test for at least 18 hours, no corrosion. Exclusive process, anticorrosive and durable.

8. The eighth process of automatic blanking packaging process is the automatic blanking system of steel pipe, which is the highest application of our automation and intelligent program. The robot arm is turned over to the conveyor chain, and the protected conveyor chain transmits the steel pipe to the material of the stepper machine for step loading. The automatic sensor is used to identify the position of the steel pipe, the system collects signals, controls the reciprocating transport of the steel pipe by the stepper, and aligns the steel pipe by the roller table. The automatic coding machine automatically identifies the number of steel pipes according to the input instructions, and uses the electromagnetic device to pick up, translate, place and reset the steel pipes in one go to realize the automatic place. The whole process does not require manual operation, and workers only need to monitor the system to work correctly.

9. Automatic weighing and labeling process after packaging, the steel pipe is stepped to the weighing machine by the conveyor chain, and automatically lifted and weighed, automatically labeled, automatically pasted, and automatically discharged from the warehouse in one go. Greatly reduce the labor intensity of employees, but also to ensure that the weight of each steel pipe is accurate, and each steel pipe information (product specifications, production date, raw material manufacturers, production teams, each piece of weight) are given an independent two-dimensional code, easy to trace.

Galvanized pipe (SC) is a common steel pipe material, which is treated by hot-dip galvanizing technology in the manufacturing process. So, what does galvanized pipe SC mean?

1. Basic concept of galvanized pipe

Galvanized pipe refers to the pipe immersed in molten zinc liquid, after a series of chemical reactions and physical changes, so that the surface of the pipe formed a layer of zinc-iron alloy coating of the pipe. This galvanized treatment can effectively prevent the corrosion of the surface of the steel pipe and extend the service life of the steel pipe.

2. Meaning of galvanized pipe SC

The "SC" in galvanized pipe SC stands for "Standard Class". In the production and sales process of galvanized pipes, in order to facilitate the distinction between different standards and specifications, some code names or abbreviations are often used to indicate.

3. Standard grade of galvanized pipe SC

The standard grade of galvanized pipe is differentiated according to its manufacturing process and material and other factors. Generally, galvanized pipe SC is divided into SC1, SC2 and SC3 grades, which correspond to different surface treatment quality and corrosion resistance.

SC1: The surface treatment quality is higher, the galvanized layer is thicker, and the corrosion resistance is better. Suitable for demanding engineering projects, such as chemical, oil, natural gas and other fields.

SC2: Moderate surface treatment quality, moderate galvanized layer, good corrosion resistance. Suitable for general engineering projects, such as buildings, Bridges, roads and other fields.

SC3: The surface treatment quality is low, the galvanized layer is thin, and the corrosion resistance is general. It is suitable for some projects with low requirements for galvanized layer, such as agriculture, furniture and other fields.

4. Application field of galvanized pipe SC

Galvanized pipes are widely used in various fields, including construction, industry, agriculture and so on. It has the following main features:

- Good corrosion resistance: the galvanized layer can effectively prevent the surface of the steel pipe from oxidation and corrosion, and improve the service life of the steel pipe.

- Good welding performance: the galvanized pipe can maintain good welding performance during the welding process, and it is not easy to have weld cracking and other problems.

- Wide applicability: Galvanized pipe can be applied to different engineering projects and environmental conditions, with strong adaptability.

- Low cost, easy processing: Galvanized pipe manufacturing cost is relatively low, processing and installation is convenient, suitable for large-scale production and use.

In the construction field, galvanized pipes are often used in the construction of water supply pipes, drainage pipes, HVAC pipes and other systems. In the industrial field, galvanized pipes are often used for conveying gas, liquid and other media pipeline systems. In the field of agriculture, galvanized pipes are often used to build greenhouses and build livestock facilities.

Hot-plated pipe and ordinary galvanized pipe, although the two seem similar, but there are significant differences. These differences are mainly reflected in their production processes, performance characteristics and application fields.

First of all, from the point of view of the production process, the hot-plated tube is produced by the hot-dip galvanizing process. In this process, the steel pipe first goes through a pre-treatment process such as pickling and cleaning, and then is immersed in the molten zinc liquid, and is removed after a period of time to form a zinc-iron alloy layer. The ordinary galvanized pipe is produced by electroplating process, that is, zinc ions are deposited on the surface of the steel pipe through the action of current to form a zinc layer. These two different production processes make the performance of hot-plated pipe and ordinary galvanized pipe different.

In terms of performance characteristics, because of the hot dip galvanizing process, the zinc-iron alloy layer on the surface of the hot plated tube is closely combined with the steel tube matrix, which has good corrosion resistance and can effectively prevent the corrosion of the steel tube during use. The zinc layer of ordinary galvanized pipe is relatively thin, the binding force with the steel pipe matrix is weak, and the zinc layer is easy to fall off during use, which affects its anti-corrosion performance.

In addition, in the field of application, because of its excellent anti-corrosion performance and long service life, hot plated tubes are widely used in various fields such as construction, transportation, petroleum, chemical industry, especially those with high anti-corrosion performance requirements. The ordinary galvanized pipe is mainly used for some occasions with low anti-corrosion performance requirements, such as some temporary buildings or facilities.

In general, hot plated pipe and ordinary galvanized pipe are a kind of galvanized steel pipe, but due to the different production process and performance characteristics, they are also different in the application field. When choosing the use, we need to choose the appropriate type of steel pipe according to the specific use environment and needs.

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 interaction between magnets and galvanized steel is a topic that involves materials science and the principles of magnetism. First of all, we need to understand that the reason why magnets can adsorb certain metals is because these metals are magnetic, or they can be magnetized and attracted to magnets. However, as a non-magnetic metal, zinc does not attract magnets.

Galvanized steel is a special kind of steel whose manufacturing process involves plating a layer of zinc on the surface of ordinary steel. This process is usually done by hot dip galvanizing, in which the steel is dipped into a molten zinc solution that adheres to the steel surface and forms a protective layer. The main function of this layer of zinc is to provide anti-corrosion function and protect the steel from the external environment, thus significantly extending the service life of the steel.

Because zinc is a non-magnetic material, when the magnet is near the galvanized steel, the galvanized layer itself will not be attractive to the magnet. This means that if only the galvanized layer is considered, the magnet will not adhere to the galvanized steel. The reality, however, may be more complicated. If the substrate beneath the galvanized layer is magnetic steel, and the zinc layer is not thick enough to completely isolate the magnetic force between the magnet and the substrate, then the magnet may "stick" to the galvanized steel in this indirect way. This is because the magnet attracts the magnetic part of the substrate, which generates enough force to keep the magnet on the galvanized steel surface.

In the plating process, in order to improve the performance and appearance of galvanized steel, other surface treatment techniques may be used. For example, some galvanized steel may be further treated and covered with a black protective film, which not only provides additional anti-corrosion effect, but also improves the appearance of the product. However, this protective film is also usually non-magnetic, so it also does not affect the adsorption capacity of the magnet.

Whether the magnet will stick to the galvanized steel mainly depends on two factors: first, whether the steel under the galvanized layer is magnetic, and second, whether the thickness of the zinc layer is sufficient to prevent direct contact between the magnet and the magnetic substrate. If these two conditions are met, then it is possible for the magnet to be indirectly adsorbed on the galvanized steel through the magnetic substrate. On the contrary, if the galvanized layer is thick enough, or the substrate itself is not magnetic, then the magnet will not stick to the galvanized steel

Galvanized pipe as a widely used material, its production and use in the process will indeed encounter some technical problems. Fortunately, as technology advances, there are solutions to these problems. At the same time, due to fluctuations in market demand, the price of galvanized pipes will also be affected to a certain extent, which is a common phenomenon in the market economy.

In the production process, steel leakage defect is a common problem. In order to reduce production costs and improve the strength of steel, manufacturers often add a higher proportion of silicon to steel-based materials. However, if the amount of silicon is too much, it will lead to an increase in the surface tension of the steel, which reduces the wetting ability of the steel plate to the zinc liquid and affects the galvanizing effect. In addition, silicon is easy to react with oxygen to produce silica at high temperatures, and if these acidic substances cannot be effectively removed, steel leakage defects will be formed during the galvanizing process.

In order to solve this problem, continuous hot-dip galvanizing process of hot-rolled steel strip without pickling can be adopted. This process is characterized by feeding the steel strip directly into the reduction furnace without going through the pickling step, and increasing the volume fraction of hydrogen to more than 20% to reduce the possibility of oxidation. At the same time, in the process of hot dip galvanizing, the adhesion of the coating can be significantly improved by forming Fe-Al-Zn alloy layer on the surface of the steel strip, so as to effectively eliminate steel leakage defects. These countermeasures are very worthy of reference for galvanized pipe manufacturers.

Another problem is the loss of the zinc layer, which is usually caused by the low heating value of the gas in the pentoxide furnace or the oxidation atmosphere caused by pressure fluctuations. In order to solve this problem, several countermeasures can be taken:

a. Choose a gas burner with better combustion performance to ensure that the pressure of air and gas is stable in an appropriate range;

b. Control the fluctuation range of gas heating value to ensure that its fluctuation does not exceed ±5%;

c. In the open flame heating, the temperature of the forge should be maintained above 1000℃;

d. If the forging furnace without burner preheating is used, its temperature should be maintained above 800℃;

e. The temperature of the strip steel when leaving the pentoxide furnace should be controlled below 650℃.

Through these measures, the zinc layer can be effectively prevented from falling off and the quality of galvanized pipe can be guaranteed. In short, although galvanized pipes may encounter some problems in the production and use of the process, but through scientific methods and technological innovation, these problems can be solved. At the same time, producers also need to pay close attention to market dynamics in order to better cope with the challenges posed by price fluctuations.

First, the difference between galvanized pipe and steel pipe

Galvanized pipe is a kind of pipe that covers the surface of ordinary steel pipe with zinc layer, which is characterized by good corrosion resistance and smooth surface. The steel pipe is not galvanized, and its surface anti-corrosion ability is weak and easy to be corroded.

Second, the durability of galvanized pipe and steel pipe comparison

1. Corrosion resistance

Because the galvanized pipe has been galvanized, it has good corrosion resistance and long service life; The untreated steel pipe is easy to be corroded and has a short service life.

2. Carrying capacity

The bearing capacity of the steel pipe is stronger than that of the galvanized pipe, because the surface of the steel pipe has no galvanized layer, and the material is relatively stronger.

3. Use environment

In wet environments, galvanized pipes are more durable than steel pipes because the zinc layer prevents moisture from entering the pipe, thereby protecting the pipe from damage.

In a dry environment, the life of the steel pipe is longer, especially in the absence of acid and alkali corrosion, and the service life is longer.

Third, how to choose galvanized pipe and steel pipe

1. Select according to the use environment

In humid environment, it is recommended to choose galvanized pipe; In a dry environment, steel pipe is recommended.

2. Select based on load requirements

If you need to carry a larger weight of items, it is recommended to use steel pipe, because it has a stronger load capacity.

3. Select based on the actual situation

Galvanized steel is a specially treated steel that is not magnetic, so it will not be attracted to magnets. This article will introduce in detail the definition of galvanized steel, the working principle of magnets and why galvanized steel can not be attracted by magnets.

First, let's understand the concept of galvanized steel. Galvanizing is a widely used method for corrosion protection of steel, which involves coating the surface of steel with a zinc material. The purpose of this is to prevent the steel from being corroded in the environment and extend its service life. Because galvanized steel has anti-corrosion, beautiful and acid and alkali resistance characteristics, it has a wide range of applications in the construction industry, automobile manufacturing, furniture production and other fields.

Next, we'll explore how magnets work. Magnets are objects made of materials containing magnetic elements such as iron, nickel, cobalt, and they have specific magnetic properties. Magnets are able to generate magnetic force because of the magnetic moment inside them, which is formed by the arrangement and combination of microscopic electrons in an external magnetic field. When a magnet approaches other objects, it creates a magnetic field around those objects, which in turn affects the microscopic electron configuration inside the objects, causing them to generate corresponding magnetic fields. This interaction between magnetic fields causes attractive or repulsive forces between objects.

However, galvanized steel is an exception, it is not attracted to magnets. The reason is that during the galvanizing process, the surface of the originally magnetic steel is coated with a layer of zinc, and iron atoms are combined with zinc atoms to form an alloy, which changes the magnetic properties of the steel and makes it lose its original magnetism. In addition, the physical properties of galvanized steel have also undergone some changes, such as its resistivity will increase and its heat conductivity will decrease. Therefore, although galvanized steel has a wide range of applications in the manufacturing industry, because it is not magnetic, it is not suitable for use as a magnet material.

In summary, although magnets can attract many types of metal, for galvanized steel that has been galvanized, magnets can do nothing. This phenomenon reveals the importance of a material's physical and chemical properties for its interaction with magnets.

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.

Galvanized pipe is a material that is often used in daily life. So, is this material made of iron or steel?

First of all, we need to make it clear that galvanized pipes are actually made of steel. This pipe is also known as galvanized steel pipe, which can be divided into two types: hot dip galvanized and electric galvanized. If it is a hot-dip galvanized pipe, the galvanized layer will be thick and uniform, so its service life will be longer. However, if it is electrically galvanized galvanized pipe, although its cost is lower, its surface is not particularly smooth, and its corrosion resistance is not as good as the former. Therefore, we recommend to try to choose hot-dip galvanized galvanized pipe.

Secondly, there are many galvanized pipe manufacturers sold on the market, and we need to understand the quality of the products when buying, so as to ensure that the quality is more guaranteed.

Next, let's talk about the difference between galvanized pipes and stainless steel pipes.

First of all, the meanings of the two are completely different. Galvanized pipe is made by welding, there are mainly two types of hot dip galvanized and electric galvanized. The stainless steel pipe is actually a long round steel.

Secondly, the scope of application of the two materials is also different. Galvanized pipe can be widely used in construction, chemical, electric power, automobile, bridge and other industries. The stainless steel pipe is mainly suitable for chemical, food, petroleum and other industries, in addition, it can also be used for the manufacture of some parts.

Finally, we need to pay attention to the following points when using galvanized pipes:

In the process of use, do not use sharp objects to knock on the surface, otherwise it may cause cracks. At the same time, try to avoid letting the material come into contact with easily corroded products to prevent corrosion.

When dealing with the gap between the pipes, the sleeve can be installed, generally the thickness of the sleeve is greater than 10 mm, and the gap is filled with insulation material.

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

Dx51d is galvanized coil. dx 51d represents the material of ordinary galvanized coil. However, the most common galvanized coil on the market is actually SGCC, which is actually a Japanese standard. However, DX51D and DC51D are European standards. In DX51D, D represents the curved forming grade galvanized sheet, and 51 represents the number of the steel grade, which is mainly made of low carbon steel as the basic material.

Dx51d is galvanized coil.

Dx51d represents the material of ordinary galvanized coil, but the most common galvanized coil on the market is actually SGCC, which is actually the Japanese standard. However, DX51D and DC51D are European standards. In DX51D, D represents the curved forming grade galvanized sheet, and 51 represents the number of the steel grade, which is mainly made of low carbon steel as the basic material.

1. Lightweight and easy to shape

2. Corrosion resistance Due to a dense oxide film on its surface, it has strong adhesion, oxidation resistance, acid resistance, alkali resistance, corrosion resistance, rot resistance, UV resistance and other properties.

3. Good temperature resistance, the melting point of aluminum is 660 degrees, and the general temperature can not reach his melting point

4. The sheet is extremely strong and can be cut, splayed, balanced, drilled, joined, fixed and pressed.

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.