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Why some stainless steel can be absorbed with a magnet 2022-09-09
Some stainless steel can be attracted by magnets, that is because these stainless steel with magnetic Stainless steel is iron carbon alloy, under normal circumstances, iron metal is not with magnetic austenite, but in the smelting process, after cold processing, the structure will change, stable austenite into an unstable martensite, so that stainless steel with magnetic, can be attracted by a magnet. Stainless steel that can be attracted by magnets are: 1, stainless steel is a kind of iron carbon alloy, plus some nickel, chromium and other elements, after processing the formation of a kind of steel with rust characteristics, 2, stainless steel is mainly divided into three categories: austenitic stainless steel (200, 304 series), ferritic stainless steel (405, 403), martensitic stainless steel (410). 3, austenitic stainless steel containing nickel, chromium metal more, chromium is greater than 18%, high corrosion resistance, no magnetic, can not be attracted by magnets, 4, ferritic stainless steel, containing chromium 15% ~ 30%.It's strong, it's magnetic, it can be held by a magnet, 5, martensitic stainless steel with high carbon, high strength, but poor plasticity and welding performance, with magneti
The difference between 304 stainless steel and 201 stainless steel 2022-09-08
Generally in stainless steel manufacturers will have two kinds of materials, 201 stainless steel and 304 stainless steel.Some manufacturers can produce 304 stainless steel, some can produce 201 stainless steel, some manufacturers can produce two kinds of stainless steel profiles.But in the eyes of many consumers can not distinguish 304 stainless steel and 201 stainless steel, today we share with you the difference between the two types of steel! The difference between 304 stainless steel and 201 stainless steel: 1, chemical composition is different: general stainless steel is in iron, carbon on the basis of nickel, chromium, manganese and other metal elements, to produce rust resistance, 304 stainless steel containing nickel, chromium elements than 201 stainless steel, manganese element than 201 stainless steel less. 2, chemical properties: nickel-chromium metal mainly plays the role of corrosion resistance, 304 stainless steel containing nickel-chromium, corrosion resistance than 201 stainless steel. 3, physical properties: 304 stainless steel toughness, 201 stainless steel toughness, tensile process needs a lot of force, and easy to crack. 4, safety performance: 201 stainless steel contains high manganese element, harmful to the human nervous system, 304 stainless steel safety belongs to the edible grade material, the current edible grade of stainless steel are 304 stainless steel and above the level. 5, price: 304 stainless steel nickel, chromium, good corrosion resistance, the pric
The features of stainless steel net basket 2022-09-07
Stainless steel net basket series is welded with high quality stainless steel wire. The products are bent into various handicrafts by bending.The surface can be polished, dip, spray, according to customer needs to make a variety of colors of crafts.Stainless steel net basket features: The use of high quality stainless steel wire, the use of micro point resistance welding and no butt welding welding technology, so that the product has no outstanding welding spot, no welding damage, no burr, no fall off, safe use.Surface treatment electrolytic polishing treatment, durable, bright as a mirror, no rust, no change.The grid design facilitates the penetration of water or steam, ensuring the effect of cleaning, disinfection and sterilization.Stainless steel net basket uses: mainly used for medical equipment, medical disinfection, pasta, meat barbecue, life with flower basket, fruit basket, vegetable basket, dish basket, cooker rack, all kinds of supermarket baskets, turnover box;Hotel drinks, food rack;Office paper basket, paper basket, book, newspaper drop rack, pet carrier, etc.Net basket material and dimensions can be customized according to customer needs. 1. All stainless steel 304, corrosion resistance, low bacterial adhesion, long service life; 2. The side hole stainless steel punching plate can effectively prevent the tip of the instrument from leaking out; 3. Top round wire top welding design, no sharp Angle smooth surface; 4. The bottom welding net is conducive to the penetration of cleaning liquid or steam to ensure the cleaning and sterilization effect;
How to choose a draining rack 2022-09-06
Ambry is daily household is more commonly used a kind of furniture, through the setting of ambry can increase the kitched receive a space, put a lot of bowl and chopsticks to maintain the neat degree of the kitchen The cabinets on the market are under the banner of stainless steel, but in reality it is easy to rust, household use of cabinets if there is a basket rust, rust inside the situation needs to be handled in time.Pull basket can be re-purchased if the internal rust or replacement, or through some small ways of life to remove rust.In the process of use, pay attention to maintenance, do not put the undrained dishes and chopsticks into the cupboard, avoid creating a humid environment.The drain rack is a good helper for placing bowls and chopsticks, so how to buy the drain rack is particularly important, 1. Pay attention to practicality There are different styles of drain rack, general styles can be placed dishes, dishes, spoons, etc., specifications are large and small.If you want to hang cutting boards, knives, etc., you can consider these functions when choosing to see if they can meet the needs of life. 2, pay attention to the classification to be clear The classification that can have tableware on drain shelf puts an area, everyone needs only when using " take a seat t the right" can.If there are more family members, then it is recommended to buy a large capacity of asphalt rack, so that the length and width are relatively large, can place a lot of bowls and chopsticks.However, no matter ho
Remove Rust from Stainless Steel Equipment 2022-09-05
Rust spots can appear for a long time, even after proper cleaning and care.Follow the steps below to help you recover stainless steel products. Determine the cause of corrosion.Whether it is due to mechanical wear, sediment, water or chloride/chemicals, it is necessary to determine the cause of the corrosion so that your care and cleaning can be corrected to avoid future recurrence. Use a scratch free pad such as 3M 2000 to remove rust from the product.Do not apply any moisture or chemicals to the mat, just apply to the metal.Rub gently with the texture of stainless steel. Pro tip: Test it on a small, concealed stainless steel spot until you "feel" the pressure to apply. Using a cleaning cream or powder, such as Bar Keepers Friend multipurpose cleaning powder, wipe down the affected area with a soft cloth or microfiber towel. Wet a separate area of the towel to remove any excess paste or powder. Be sure to use a stainless steel safety polish like Spiffy Shine frequently to help remove any corrosive elements from the stainless steel and allow the passivation layer to recover.Remember to thoroughly wash all surfaces that come into contact with food after using Spiffy Shine in the kitchen. Although 304 stainless steel products are not easy to rust, but in the case of improper use or use for a long time will rust, so we should correctly use and maintain 304 stainless steel products in our daily life.
6 kinds of stainless steel surface treatment technology 2022-09-02
6 kinds of stainless steel surface treatment technology 1, mirror processing Stainless steel mirror processing, simply speaking is to polish the surface of stainless steel, polishing method is divided into physical polishing and chemical polishing.It can also be partially polished on the surface of stainless steel. The polishing grade is divided into ordinary polishing, ordinary 6K, fine grinding 8K, super fine grinding 10K effect.Mirror gives people a sense of high-grade simplicity and fashion in the future. 2, sand blasting treatment This is the most common stainless steel processing of a surface treatment process, it is mainly through the air compression to get the power, high-speed jet beam will spray to the workpiece surface to be processed, making the shape of the workpiece surface changes. Sandblasting is mainly used in engineering and surface technology, such as improving the viscosity of adhesive parts, optimizing the surface burr machining, decontamination and surface matte processing have a great role.This process is much better than the effect of manual grinding, sandblasting treatment of the surface structure is uniform, can create a low-key product, durable characteristics, and high efficiency of production and processing.Manual grinding can produce the rough surface but the speed is too slow, chemical solvent cleaning is too smooth to clean the surface is not conducive to coating adhesion. 3. Chemical treatment
Acceptance standards of stainless steel products 2022-08-31
Stainless steel products have acceptance standards, mainly divided into appearance quality requirements, welding requirements and polishing requirements and other three parts. 1. Appearance quality requirements ① The surface of stainless steel products can not have scratches, bumps, crescent marks, etc.;Inspection method: Observe the bottom surface of each stainless steel products, pay attention to the Angle of stainless steel products in the process of turning to hold down the hands to move, watch whether there are crescent marks on the surface of stainless steel products should pay attention to watch along the direction of the light. The surface of stainless steel products is not allowed to have oil;Inspection method: daily manufacturers to make stainless steel products machinery maintenance and clean, in the placement of semi-finished products, should be placed on the semi-finished products on the board or semi-finished products designated stacked place to avoid stainless steel products surface stained with stains. 2, welding requirements: stainless steel products welding gap to uniform straight, forbidden strong counterpart, the wrong mouth value should be less than 10% of the wall thickness, and not more than 1mm, the specific welding requirements of the following figure 3. Polishing requirements (1) Stainless steel products in accordance with the polishing product sample comparison and acceptance from the polishing quality, material and product protection three aspects of the t
Why choose 304 stainless steel pull out basket 2022-08-30
Now many people are not very familiar with the pull out basket, in fact it is the drawer on the cabinet, mainly used to place bowls and chopsticks or a few cleaning supplies.And there is a lot of types of pull out basket in the market, from the material points it has stainless steel, iron, plastic and so on. In consideration of the application fields and the operating environment, we suggest consumers choose 304 stainless steel basket.On the one hand, 304 stainless steel material in corrosion resistance is relatively high, so in the kitchen environment, the number of years will be relatively high.On the other hand, stainless steel pull basket in the use of cleaning difficulty is relatively low, and will not waste too much time and energy. Stainless steel pull out baskets are easier to maintain than other baskets.Then we will talk about how to maintain stainless steel pull out basket: 1. When cleaning the surface of the stainless steel pull out basket, we must pay attention not to scratch the surface. 2, avoid the use of bleaching ingredients and abrasive detergent, steel ball, grinding tools, etc., in order to get rid of the washing liquid, wash the end of the stainless steel pull basket surface with clean water. 3, stainless steel pull out basket surface dust and easy to remove dirt, soap, weak detergent or warm water washing. 4, stainless steel pull basket surface trademark, film, with warm water, weak detergent to wash, binder composition, the use of alcohol or organic solvent (ether, benzene) scrub.
Simple method for identification of food grade 304 stainless steel 2022-08-29
Simple method for identification of food grade 304 stainless steel In life, we will come into contact with a lot of stainless steel products (such as electric kettle, knife, fork, barbecue tools, etc.), some will identify this is food grade 304 stainless steel, but it's really true, now you only need to spend on the internet more than ten dollars to buy a 304 potion, can make all stainless steel test again, and see if it is food grade 304 stainless steel. Tools/Materials a, 304 Test Potion b, A 9V battery c, Stainless steel material d, Two thin metal wires about 5 centimeters long Methods/Steps 1, wipe the stainless steel surface clean 2, 304 drops of water on the surface of stainless steel 3. Connect two metal wires to the two ends of the battery. 4,2 the other two ends of the wire, one end of the contact on the stainless steel surface, the other end on the 304 potion, wait for 3 seconds reaction time 5, observe the color of the potion, contrast the potion instructions, you can know whether this is 304 food gra
304 stainless steel rust causes 2022-08-26
Although we often say that 304 stainless steel will not rust, but it will rust if not used properly.Next, I will tell you why 304 stainless steel rust and how to prevent 304 rust. 304 stainless steel material rust phenomenon, there may be the following reasons: Folded chloride ion Chloride ions are found everywhere, such as in table salt/sweat/sea water/wind/soil, etc.Stainless steel corrodes quickly in the presence of chloride ions, even more than ordinary mild steel.So there are requirements for the use of stainless steel environment, and need to often wipe, remove dust, keep clean and dry.The United States has an example: an enterprise with an oak container containing a chloride ion solution, the container has been used for more than 100 years, the 1990s plan to replace, because the oak material is not modern enough, the stainless steel replacement 16 days after the container due to corrosion leakage. Folding solution treatment The alloying elements did not dissolve into the matrix, resulting in low alloy content and poor corrosion resistance. Folded intergranular corrosion This material, which does not contain titanium or niobium, is prone to intergranular corrosion.Intergranular corrosion can be reduced by adding titanium and niobium together with stable treatment.In the air or chemical corrosion medium can resist corrosion of a high alloy steel, stainless steel is a beautiful surface and corrosion
processing method of 304 stainless steel 2022-08-25
304 stainless steel processing method Folding etching method Etching processing method, is on the surface of stainless steel with screen printing acid-resistant protective film, and then with ferrous chloride etching, the formation of artistic patterns. Folding spray paint method The color spraying method is to spray the color particles after screen printing, forming the pear skin like surface, forming the artistic pattern. Folding process Stainless steel products spray color art processing process is: stainless steel products → screen printing → etching → alkali treatment → screen printing → oxidation coloring → alkali treatment → finished products. Stainless steel products etching art processing process is: stainless steel products → screen printing → etching → alkali treatment → oxidation coloring → finished products. Stainless steel chemical coloring method, do not use pigments and dyes, but the stainless steel immersed in heated concentrated chromium sulfate solution, chemical coloring, which is characterized by good food resistance.The ink used in this processing method, to have a very strong acid resistance, the general use of UV vulcanized ink with special properties suitable for the processing process.
The product standard of 304 stainless steel 2022-08-24
304 stainless steel product standard International labeling method for stainless steel The American Iron and Steel Institute uses three digits to mark various standard grades of malleable stainless steel.Among them: ① Austenitic stainless steels are marked with numbers of 200 and 300 series. For example, some of the more common austenitic stainless steels are marked with 201, 304, 316 and 310. ② Ferrite and Martensite type stainless steel with 400 series of numbers. ③ Ferritic stainless steel is 430 and 446 as the mark, martensitic stainless steel is 410, 420 and 440C as the mark, ④ Biphasic (austenite-ferrite), stainless steel, precipitate-hardened stainless steel and high alloys with iron content less than 50% are usually named by patent or trademark. Classification and grading of standards 4-1 Classification :① National standard GB ② Industry standard YB ③ Local standard ④ Enterprise standard Q/CB 4-2 Classification :① Product standards ② packaging standards ③ method standards ④ basic standards 4-3 Standard level (divided into three levels):Y level: international advanced level I level: international general level H level: domestic advanced level
Range of application of 304 stainless steel 2022-08-23
Range of application of 304 stainless steel 304 stainless steel is one of the most widely used chromium-nickel stainless steel, as a widely used steel, has good corrosion resistance, heat resistance, low temperature strength and mechanical properties;Good thermal processing property such as punching and bending, no hardening phenomenon of heat treatment (using temperature -196℃~800℃).Corrosion resistance in the atmosphere, if it is industrial atmosphere or heavily polluted areas, it is necessary to clean in time to avoid corrosion.Suitable for food processing, storage and transportation.It has good machining performance and weldability.Plate heat exchanger, bellows, household products (Class 1, 2 tableware, cabinets, indoor pipelines, water heaters, boilers, bathtubs), auto parts (windshield wipers, mufflers, mold products), medical appliances, building materials, chemistry, food industry, agriculture, Marine parts, etc.304 stainless steel is food grade stainless steel recognized by the country. Most of the requirements are to maintain the original appearance of the building for a long time.In determining the type of stainless steel to be selected, the main consideration is the required aesthetic standards, the corrosive atmosphere and the cleaning system to be used.However, other applications increasingly seek only structural integrity or water impermeability.For example, the roof and side walls of an industrial building.In these applications, construction cost to the owner may be more important than aesthetics, even if the surface is not very clean.304 stainless steel works well in dry indoor environments.However, in the country and the city to maintain its appearance outdoors, it needs to be washed regularly.In heavily polluted industrial and coastal areas, the
What is 304 stainless steel 2022-08-22
What is 304 stainless steel In our previous company news that we introduced many features of 304 stainless steel so today I will introduce what is 304 stainless steel to you. 304 stainless steel is a common material in stainless steel, density of 7.93 g/cm³;Also known in the industry as 18/8 stainless steel, meaning contains more than 18% chromium and more than 8% nickel;High temperature resistance 800℃, has the characteristics of good processing performance, high toughness, widely used in industrial and furniture decoration industry and food and medical industry.But it should be noted that food grade 304 stainless steel compared with ordinary 304 stainless steel, its content index is more strict.For example: the international definition of 304 stainless steel is mainly chromium 18%-20% nickel 8%-10%, but food grade 304 stainless steel is chromium 18% and nickel 8%, allow a certain range of fluctuations, and limit the content of various heavy metals.In other words, 304 stainless steel is not necessarily food grade 304 stainless steel There are 06Cr19Ni10, SUS304 in the common labeling method on the market, where 06Cr19Ni10 generally represents the national standard production, 304 generally represents the ASTM standard production, SUS304 represents the Japanese standard production. 304 is a kind of universal stainless steel, which is widely used in the production of equipment and parts requiring good comprehensive performance (corrosion resistance and mo
The main difference between food grade stainless steel and stainless steel 2022-08-20
The main difference between food grade stainless steel and stainless steel is: Food grade 304 stainless steel is a grade of stainless steel produced according to ASTM standards in the United States.The most important elements in 304 are Ni and Cr, but not limited to these two elements.Specific requirements are specified by product standards.Industry common judgment that as long as the Ni content is greater than 8%, Cr content is greater than 18%, it can be considered 304 stainless steel. Stainless Steel (Stainless Steel) is short for Stainless acid resistant Steel, Stainless Steel refers to air, steam, water and other weak corrosive medium and acid, alkali, salt and other chemical corrosive medium corrosion of Steel, also known as Stainless acid resistant Steel.The corrosion resistance of stainless steel depends on the alloying elements contained in the steel. The main alloying element in stainless steel is Cr (chromium). Only when the content of Cr reaches a certain value, the steel has corrosion resistance.Therefore, stainless steel generally Cr (chromium) content of at least 10.5%.Stainless steel also contains Ni, Ti, Mn, N, Nb, Mo, Si, Cu and other elements. 304 stainless steel is a common material in stainless steel, density of 7.93g /cm3, the industry is also called 18/8 stainless steel.High temperature resistance 800℃, has the characteristics of good processing performance, high toughness, widely used in industrial and furniture decoration industry and food and medical industry. 304 is a kind of universal stainless steel, which is widely used
Why 304 stainless steel is called food grade stainless steel 2022-08-19
Why 304 stainless steel is called food grade stainless steel You must be very familiar with 304 stainless steel, we are Lane Joy and we are a factory located in Shenzhen and we production of a variety of 304 stainless steel products for more than 13 years such as Cooling Rack, Baking Rack, Cooking Rack, Smoking Rack,Draining Rack,Barbecue Grill Grate, Grill Mesh, Cooking Grid, Pull Out Cabinet Organizer,Fruit & Vegetable Basket. And our products are suitable for a variety of environments, so in thousands of households can often see their figure, therefore, 304 stainless steel also has a name called food grade stainless steel. Many people do not understand why 304 stainless steel is known as food grade stainless steel, then we will do a simple science for you, why 304 stainless steel is known as food grade reasons. First of all, we need to understand that there are a lot of weak acid and alkaline substances in the food processing plant. Over time, these substances will produce corrosion on the metal, and 304 stainless steel itself has good corrosion resistance, but the chemical reaction with acid and base will still decompose various prices of "chromium", toxic.Moreover, it is required to limit the content of various alloy impurities such as lead and cadmium. Stainless steel internal mixed with chromium, nickel element, this element is the key to rust, if the nickel and chromium content is high, the stronger the corrosion protection functio
Why use 304 food grade stainless steel 2022-08-18
Why use 304 food grade stainless steel Stainless steel is closely related to our life. POTS, electric kettles and sinks used in our daily life are made of stainless steel, and even some food and beverage processing equipment, and medical equipment that we can't see will also be used in stainless steel. In order to achieve toughness and stiffness and not rust requirements, stainless steel is doped with many other metal elements such as:Manganese, nickel, chromium, lead, etc., and many of our daily food is a weak acid, such as fruit, vinegar, green vegetables, these foods in the process of long-term contact with the stainless steel can cause corrosion of stainless steel, and toxicity of heavy metal ions, in the long run, it will cause great hidden danger to our health. In order to resist inferior stainless steel flooding the market, cause great harm to our health, the country issued the "People's Republic of China national standard/stainless steel food container health standards", and strict requirements of the major manufacturers in accordance with this standard to produce qualified products. Food grade stainless steel refers to the stainless steel material in accordance with the "People's Republic of China National Standards/stainless steel utensils and containers Health standards" GB 9684-2011. Food grade stainless steel refers to the food mechanical contact with the food part, must meet certain food safety requirements.Because the food production process to use a lot of acid and alkali, and stainless steel contains chromium, unqualified stainless steel,
Our creative fruit & vegetable baskets 2022-08-17
As you know that we are a factory located in Shenzhen and we are good at manufacturing all kinds of stainless steel products for more than 13 years such as Cooling Rack, Baking Rack, Cooking Rack, Smoking Rack,Draining Rack,Barbecue Grill Grate, Grill Mesh, Cooking Grid, Pull Out Cabinet Organizer,Fruit & Vegetable Basket. And we can offer customize service on both proudcts and packages as per your needs. Let me talk about our creative fruit & vegetable baskets: Stainless steel fruit & vegetable basket: stainless steel basket series adopts high quality food grade 304 stainless steel wire welding and become, the product is bent into this very beautiful handicraft through bending.Product surface can also be polished, dip, spray, according to customer needs to make a variety of colors. Stainless steel fruit & vegetable basket features: The use of high quality food grade 304 stainless steel wire, the use of micro point resistance welding and no butt welding welding technology, so that the product has no prominent welding spot, no welding damage, no burr, no fall off, safe use.Surface treatment electrolytic polishing treatment, durable, bright as a mirror, no rust, no change.The grid design facilitates the penetration of water or steam, ensuring the effect of cleaning, disinfection and sterilization. Stainless steel fruit & vegetable basket: Th
The standards of 304 stainless steel product 2022-08-16
304 stainless steel product standard The most important elements in 304 are Ni and Cr, but not limited to these two elements.Specific requirements are specified by product standards.Industry common judgment that as long as the Ni content is greater than 8%, Cr content is greater than 18%, it can be considered 304 stainless steel.This is why the industry will be called 18/8 stainless steel reasons.In fact, the relevant product standards for 304 have very clear provisions, and these product standards for different shapes of stainless steel and there are some differences.Here are some common product standards and tests. In order to determine whether a material is 304 stainless steel, must meet the requirements of each element in the product standard, as long as there is a does not meet, can not be called 304 stainless steel. Food grade stainless steel refers to in line with the "People's Republic of China national standard/stainless steel container health standard" GB 9684-88 provisions of stainless steel material, its lead content is much lower than the general stainless steel. Food grade stainless steel refers to the food mechanical contact with the food part, must meet certain food safety requirements.Because the food production process to use a lot of acid and alkali, and stainless steel contains chromium, unqualified stainless steel, will dissolve a variety of prices of chromium, toxic;Moreover, it is required to limit the content of various alloy impurities such as lead and cadmium.So choose the right products with right material is extremely important. Please kindly note that all
Correct test method for 304 stainless steel 2022-08-15
Correct test method for 304 stainless steel With the development of science and technology, our modern quality requirements for buildings are also higher and higher.The quality of a building is mainly its structure and materials.The structure is designed by a special designer, and the materials are free to choose.Stainless steel is the most widely used building in modern times, and there are many kinds and models of it.The most popular is 304 stainless steel. Today, we bring you 304 stainless steel and how to distinguish between true and false. The details as below: Tools/Materials a, professional testing potion b, the magnet STEPS: 1, the need for professional help, professionals can rely on the color and smoothness of the steel surface to distinguish the true and false steel. 2, special steel inspection liquid medicine, this liquid medicine in general hardware stores can be purchased, so we can not worry about the problem of supply.304 stainless steel, it is tested by the liquid medicine in 3-5 minutes will not change color.In addition, the 201 stainless steel potion will turn dark brown red in an instant, the 202 stainless steel potion will turn light brown red in 5 seconds, and the 301 stainless steel potion will turn light brick red in 1-2 minutes.
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.