Stainless steel is more of a challenge to keep clean because it shows fingerprints and can easily look streaky. Because of this, it`s very important to move your cloth in one direction and go with the grain when you clean. If you`re not sure which direction you should go, start in a small area and test things out. I find that a clean microfiber cloth works best, though you can also use paper towels. You should also remember that there are different types of stainless steel. You might need to do a bit of experimenting before you hit on exactly what works best for your specific appliance. In fact, if you have several stainless-steel appliances, each one might require a slightly different cleaning routine. There are also some major "don'ts" when it comes to cleaning stainless steel:

A step-by-step guide to getting those surfaces back to new. Ahh, childhood. That time in your life when you played hopscotch, watched cartoons, and didn`t notice every dang fingerprint on your stainless steel appliances. But alas, being irritated at smudges on your fridge is actually a very good sign that you`ve ~~turned into your mother~~ matured into adulthood excellently. (Other watch-out signs: you clean your windows diligently and have a special place in your heart for glistening hardwood floors.) It`s a peculiar thing - how many streaks and smudges we leave on our stainless steel appliances. Like a roadmap of everywhere our dirty fingers have been. Do we simply miss the handle on the fridge every time we open it? Or is our aim just completely off when it comes to getting the toast out of the toaster? These are riddles we simply can`t answer. Thankfully, cleaning your stainless steel appliances is right in our wheelhouse. So let`s go. Optional: Pre-treatment If the stainless steel coating on your fridge, microwave, oven, and dishwasher are begging for your attention, you can optionally pre-treat the areas by spritzing them with non-distilled white vinegar and wiping them down with a d

It is important to properly clean stainless steel work tables, sinks, and other equipment regularly. Use the right cleaning tools: Soft cloths, microfiber, sponges, or plastic scouring pads are best. Avoid using anything that might scratch the surface. Clean with the polish lines: Stainless steel usually has a "grain" that you can see running in one direction or another. If you can see the lines, it's always best to scrub or wipe parallel to them, especially if you use something more abrasive than a cloth or wiper. Use the right cleaning chemicals: The best cleaner for stainless steel will contain alkaline, alkaline chlorinated, or non-chloride chemicals. Noble Chemical offers a variety of stainless steel cleaners and polishes specifically designed for stainless steel. Excel

We have all hear of stainless steel but when you ask people what it actually is they are often unable to answer. Effectively stainless steel whether in stainless steel sheets, stainless steel wire or other stainless steel products it is a low carbon steel which contains chromium at 10% or more by weight. It is the addition of the chromium to the carbon steel which gives it the ability to be able to resist corrosion. However, it is far more amazing than that because if becomes damaged mechanically or chemically then it has a film which is self healing proving oxygen is present. The more chromium which is present within the low carbon steel then the more properties such as the above are increased. These properties can be enhanced further when other elements are added and a prime example of this is molybdenum, nickel and nitrogen. Why Use Stainless Steel? One of the main reasons why people choose to use stainless steel is because of its advantages and physical properties, the most popular is its corrosion resistance although there are many more. The fact that it has such a resistance to high and low temperatures means that stainless steel can be used for a number of applications

We often need to use stainless steel in our daily life. There are many types of this material in the shopping mall, so how many types of stainless steel are there? 1. There are several models of stainless steel It is generally divided into 5 categories, namely martensite, ferrite, duplex, austenite and precipitation hardening. Common 201, 301, 304, etc. are in the range of austenite, they are not magnetic, while 410, 430, etc. are in the range of martensite, which is very magnetic. Most of the stainless steel usually used is 304 stainless steel, which is widely used in food storage, industrial equipment and other fields. Second, how to identify stainless steel materials? 1. Using magnets to identify, chromium stainless steel is very magnetic, and can be attracted by magnets no matter what state it is in. However, chromium-nickel stainless steel is not magnetic during annealing, and will have magnetic properties after cooling and construction, while high-manganese steel is very strong. High, so there is no magnetism. This identification method is very convenient and does not require professional supplies. 2. From the perspective of color identification, there is a difference in the appearance of stainless steel cleaned by acid. For example, the color of chromium-nickel stainless steel is silver white, and the color of chromium-nickel stainless steel is gray-white. The outer color of stainless steel is brown-white for chrome-nickel steel, brown-black for chrome-steel, and black for chrome-manganese-nitrogen. 3. Use copper sulfate to identify, first remove the oxide layer on the outer layer of stainless steel, and then drip water on it. If it is scrubbed with copper sulfate, the stainless steel will turn purple after rubbing, which pro

1. Choose a stainless steel grill brush. The bristles of the stainless steel grill brush are soft enough to protect the surface of the grill. You can choose between a cylinder brush or a straight brush. Both brushes worked well, but the sides of the rack bars were easier to clean with a cylinder brush. 2. Heat the grill. Residual grease is easier to clean when it is softened by heat. Set the grill's temperature to the highest setting, then leave the stove on for 10 to 15 minutes, or allow the temperature to rise to between 260°C and 320°C. Next, turn off the grill. 3. Brush the grill. Start with the first metal strip of the rack and brush back and forth. Keep brushing until the grease and food residue are gone. Brush the rest of the grill in the same way. 4. Grease the grill with vegetable oil. Soak a towel in a container of vegetable oil so that it absorbs about 1 teaspoon of the oil. Next, wipe each metal strip with a towel between food tongs. This is done to prevent the grill from rusting. Do not use more than 1 teaspoon of cooking oil. If there are unextinguished food scraps under the grill and the towel has absorbed too much oil, the oil can drip and cause the stove to burst into flames.

1. Why is it difficult to weld stainless steel? Answer: The main process difficulty is: <1> The stainless steel material has strong thermal sensitivity, and the residence time is slightly longer in the temperature range of 450--850 °C, and the corrosion resistance of the weld and the heat-affected zone is seriously reduced. <2> Thermal cracks are prone to occur. <3> Poor protection and serious high temperature oxidation. <4> The linear expansion coefficient is large, resulting in large welding deformation. 2. Why should effective technological measures be taken for welding austenitic stainless steel? Answer: The general process measures are: <1> Welding materials should be strictly selected according to the chemical composition of the base metal. <2> Small current., fast welding; small line energy, reduce heat input. <3> Thin-diameter welding wire, electrode, no swing, multi-layer multi-pass welding. <4> Forced cooling of the weld and heat affected zone to reduce the residence time at 450-850°C. <5> Argon gas protection on the back of TIG weld. <6> The welds in contact with the corrosive medium are welded last. <7> Passivation treatment of welds and

1. Why is it difficult to weld stainless steel? Answer: The main process difficulty is: <1> The stainless steel material has strong thermal sensitivity, and the residence time is slightly longer in the temperature range of 450--850 °C, and the corrosion resistance of the weld and heat-affected zone is seriously reduced. <2> Thermal cracks are prone to occur. <3> Poor protection and serious high temperature oxidation. <4> The linear expansion coefficient is large, resulting in large welding deformation. 2. Why should effective technological measures be taken for welding austenitic stainless steel? Answer: The general process measures are: <1> Welding materials should be strictly selected according to the chemical composition of the base metal. <2> Small current., fast welding; small line energy, reduce heat input. <3> Thin-diameter welding wire, electrode, no swing, multi-layer multi-pass welding. <4> Forced cooling of the weld and heat affected zone to reduce the residence time at 450-850°C. <5> Argon gas protection on the back of TIG weld. <6> The welds in contact with the corrosive medium are welded last. <7> Passivation treatment of welds and heat

Austenitic stainless steel can be used for electrode arc welding, tungsten arc welding, MIG welding, submerged arc welding, etc. When welding austenitic stainless steel, the welding material should be selected correctly, and the welding material with low carbon content and stable element (Nb) should be selected as far as possible to avoid the depletion of chromium at the grain boundary caused by carbide and chrome, thereby improving the resistance of the weld to the grain. inter-corrosion ability; Selecting austenitic stainless steel welding materials containing appropriate amount of ferrite promoting elements (Cr, Mo, Si, etc.) can obtain welds with austenite and a small amount of ferrite dual-phase structure, thereby improving the weldability of austenitic stainless steel welds. Intergranular corrosion resistance and thermal crack resistance; Narrow bead welding technology is adopted, no swing or no swing small swing welding is used as much as possible, and a smaller welding current and a lower arc are used under the condition of ensuring good fusion. voltage, faster welding speed; During the welding process, the temperature of the intermediate layer of the welded parts must be kept low, and if necessary, forced cooling (such as water cooling, air blowing) measures can be taken to control the temperature of the intermediate layer during the welding process and the temperature after welding, and minimize the welding seam Residence time in the range of 450 to 850°C.

There are usually three heat treatment methods for martensitic stainless steel: (high temperature tempering or complete annealing), quenching and tempering (quenching and high temperature tempering), and quenching-low temperature tempering. These heat treatment processes are discussed separately below. Martensitic stainless steel will form martensite due to air cooling after rolling and forging. Therefore, its rolling materials and forgings have high hardness and are not suitable for cutting, and must be softened before machining. There are two types of softening treatment methods: high temperature tempering and full annealing. High temperature tempering is to heat the steel or forging to 680-780qC, keep it for 2-4h, and then air-cool it out of the furnace to transform martensite into tempered sorbite. The hardness of 1Cr13 steel can be reduced to that of HB190-2002Cr13 - 4Cr13 steel. Can be reduced to HB200- 2300. Complete annealing: It is to heat the steel or forging to 840-900℃ (commonly used 860℃), keep it for 2-4h, and cool it with the furnace at an extremely slow cooling rate. The cooling rate for ICr13 steel is 20-25℃/h. The cooling rate of 2Cr13, 3Cr13, 4Cr13 steel is 15-20qC hydrazine. When the furnace is cooled to 600 ℃, it can be air-cooled. The metallographic structure after annealing is that granular carbides are distributed in the ferrite grains or carbide particles are distributed along the grain boundaries. The hardness of ICr13 and 2Cr13 steels can be reduced to below HB170 after annealing, and the hardness of 3Cr13 and 4Cr13 steels can be reduced to below HB217.

1. Chemical corrosion 1.1. Surface pollution: oil, dust, acid, alkali, salt, etc. attached to the surface of the workpiece are converted into corrosive media under certain conditions, and chemically react with some components in the stainless steel parts, resulting in chemical corrosion and rusting . 1.2. Surface scratches: The damage to the passivation film by various scratches reduces the protective ability of stainless steel, and it is easy to react with chemical media, resulting in chemical corrosion and rust. 1.3. Cleaning: After pickling and passivation, the cleaning is not clean, resulting in residual liquid remaining, which directly corrodes stainless steel parts (chemical corrosion). 2. Electrochemical corrosion 2.1. Carbon steel pollution: The scratches caused by contact with carbon steel parts and the corrosive medium form a primary battery to produce electrochemical corrosion. 2.2. Cutting: The adhesion of rust-prone substances such as cutting slag and splashing and the corrosive medium form a primary battery to produce electrochemical corrosion. 2.3. Baking school: The composition and metallographic structure of the flame heating area change unevenly, and form a galvanic battery with the corrosive medium to produce electrochemical corrosion. 2.4. Welding: Physical defects (undercut, pores, cracks, lack of fusion, lack of penetration, etc.) and chemical defects (coarse grains, poor chromium at grain boundaries, segregation, etc.

Stainless steel has excellent characteristics such as unique strength, high wear resistance, excellent anti-corrosion performance and not easy to rust. Therefore, it is widely used in the chemical industry, food machinery, electromechanical industry, environmental protection industry, household appliances industry and home decoration, finishing industry, giving people a gorgeous and noble feeling. The application and development prospects of stainless steel will become wider and wider, but the application and development of stainless steel is largely determined by the development of its surface treatment technology. 1. Common surface treatment methods of stainless steel 1.1. Introduction to stainless steel varieties 1.1.1. The main components of stainless steel: generally contain high-quality metal elements such as chromium (Cr), nickel (Ni), molybdenum (Mo), and titanium (Ti). 1.1.2. Common stainless steel: chromium stainless steel, containing Cr ≥ 12%; nickel-chromium stainless steel, containing Cr ≥ 18%, containing Ni ≥ 12%. 1.1.3. Classification from the metallographic structure of stainless steel: there are austenitic stainless steels, such as: 1Cr18Ni9Ti, 1Cr18Nil1Nb, Cr18Mn8Ni5. Martensitic stainless steel, such as: Cr17, Cr28, etc. Commonly referred to as non-magnetic stainless steel and magnetic stainless steel. 1.2. Common stainless steel surface treatment methods Commonly used stainless steel surface treatment techniques include the following treatment methods: 1. surface whitening treatment; 2. surface mirror bright treatment; 3. surface col

Original surface: NO.1 The surface that is subjected to heat treatment and pickling treatment after hot rolling. Generally used for cold-rolled materials, industrial tanks, chemical industry equipment, etc., the thickness is thicker from 2.0MM-8.0MM. Dull surface: NO.2D After cold rolling, heat treatment and pickling, the material is soft and the surface is silvery white. It is used for deep drawing processing, such as automobile components, water pipes, etc. Matte surface: NO.2B Cold-rolled, heat-treated, pickled, and then finish-rolled to make the surface moderately bright. Due to the smooth surface, it is easy to regrind, making the surface brighter and widely used, such as tableware, building materials, etc. With surface treatments that improve mechanical properties, it is suitable for almost all applications. Coarse grit:NO.3 is the product ground with No. 100-120 grinding belt. Has better gloss, with discontinuous coarse lines. It is used for building interior and exterior decoration materials, electrical products and kitchen equipment, etc. Fine sand: NO.4 The product is ground with a grinding belt with a particle size of 150-180. It has better gloss, with discontinuous rough lines, and the stripes are thinner than NO.3. It is used for baths, interior and exterior decoration materials of buildings, electrical products, kitchen equipment and food equipment. #320:Product ground with No.

1. Stainless steel 201, 202, 301, 304, 316: mainly consider rust prevention, hardness, processing performance, etc. 201, 202, 301, 304, 316 have improved rust resistance and heat resistance toughness in turn. Densities corresponding to 202, 304, and 316: 7.74, 7.93, 7.98; thermal conductivity at 100°C 16.3, 16.3, 20.5; expansion coefficient temperature 20--100 15.5, 16.0, 16.0; resistivity temperature 20: 0.65, 0.73, 0.75. 1.1. Steel grade, grade and chemical composition International stainless steel marking method: 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 Ferritic and martensitic stainless steels are marked with numbers 400 series digital representation. ③ Ferritic stainless steel is marked with 430 and 446, martensitic stainless steel is marked with 410, 420 and 440C, duplex (austenite-ferrite), ④ stainless steel, precipitation hardening stainless steel and iron content less than 50 % of high alloys are usually named after a patent or trademark. Chemical elements H,He,Li,Be,B,C,N,O,F,Ne,Na,Mg,Al,Si,P,S, Cl, Ar,K,Ca,Sc,Ti,V,Cr,Mn,Fe,Co,Ni,Cu,Zn. 1.2. The difference between stainless steel 304 and 316 304 stainless steel plate performance characteristics and uses: as stainless steel heat-resistant steel is the most widely used, food equipment, general equipment, atomic energy industrial equipment. 304 is the most common steel grade, with good cor

There are many kinds of copper sleeves, including machine copper roller, copper bearings, etc.Oil lubrication bearings, used in a variety of large, heavy machinery, is an important component of machinery. The role of copper shaft sleeve in the machine is to reduce friction, reduce vibration, prevent corrosion prevention, reduce noise, easy repair and simplify the structure and fabrication process.In moving parts, due to long-term friction will cause parts wear, at this time to use copper shaft sleeve, can reduce friction.The shaft sleeve is worn to a certain extent, only need to replace the copper shaft sleeve, thus saving the cost of replacing the shaft or seat.Application areas: axial thrust shaft bearing ring is the spare parts on the machine, the application is supporting in: diesel engine, automobile, agricultural machinery, hydraulic machinery, machine tools, forestry machinery, engineering machine equipment, mine,railway, ship, petrochemical machinery, die-casting machine, metallurgical equipment; food packaging machinery, textile, light industry machinery and aviation, Weapons and many other industries and departments of the various machinery.

Stainless steel remains stainless, or does not rust, because of the interaction between its alloying elements and the environment. Stainless steel contains iron, chromium, manganese, silicon, carbon and, in many cases, significant amounts of nickel and molybdenum. These elements react with oxygen from water and air to form a very thin, stable film that consists of such corrosion products as metal oxides and hydroxides. Chromium plays a dominant role in reacting with oxygen to form this corrosion product film. In fact, all stainless steels by definition contain at least 10 percent chromium. The presence of the stable film prevents additional corrosion by acting as a barrier that limits oxygen and water access to the underlying metal surface. Because the film forms so readily and tightly, even only a few atomic layers reduce the rate of corrosion to very low levels. The fact that the film is much thinner than the wavelength of light makes it difficult to see without the aid of modern instruments. Thus, although the steel is corroded on the atomic level, it appears stainless. Common inexpensive steel, in contrast, reacts with oxygen from water to form a relatively unstable iron oxide/hydroxide film that continues to grow with time and exposure to water and air. As such, this film, otherwise known as rust, achieves sufficient thickness to make it easily observable soon after exposure to water and air. In summary, stainless steel does not rust because it is sufficiently reactive to protect itself from further attack by forming a passive corrosion product layer. (Other important metals such as titanium and alum

Austenitic stainless steel mainly includes the following grades: 320HQ (0Cr18Ni9Cu3), SUS304 (0Cr18Ni9), 304M304J3 (304Hc), 316 (0Cr17Ni12M02), 316L (00Cr17Ni14M02). Main steel characteristics: 302HQ: low carbon, low nitrogen, low sulfur, very low work hardening rate, excellent cold workability, suitable for complex shapes and difficult applications. 304: Moderate work hardening rate, suitable for general cold processing and drawing, and good cold working performance. 304M: Moderate work hardening rate, suitable for general cold processing and drawing. 304HC: The addition of copper to replace nickel reduces the work hardening rate of steel and maintains a low magnetic permeability. SUS316: Add molybdenum, better pitting corrosion resistance. SUS316L: Substitute carbon, better corrosion resistance and better cold workability than 316. The magnetic properties of the above materials are ranked from strong to weak: 304>304M>304HC>SUS316.

Some people often think that a magnet is used to test the quality of stainless steel. The magnet does not attract and is not magnetic, and it is genuine; if it is magnetic, it is considered a fake. In fact, this is an extremely one-sided, unrealistic and wrong identification method. Generally speaking, stainless steel is either magnetic or non-magnetic, austenitic is non-magnetic or weakly magnetic, such as 201, 202, 304, 316, etc.; martensite or ferrite is magnetic, such as 430, 420, 410, etc. However, due to the segregation of components or improper heat treatment during smelting, a small amount of martensite or ferrite will be present in austenitic 304 stainless steel. In this way, 304 stainless steel will have weak magnetism. In addition, after cold working of 304 stainless steel, the structure will also be transformed to martensite. The greater the cold working deformation, the more martensite transformation, and the greater the magnetic properties. Just like a batch of stainless steel wire, it is made into a straight branch without obvious magnetic induction, but when it is bent into a rectangle or a circle, some magnetism is generated due to the large cold bending deformation, especially the corners have more obvious magnetism. In order to complete the elimination of the magnetic properties of the above 304 stainless steel, the stable austenite structure can be restored by high temperature treatment, thereby eliminating the magnetic properties.

Tensile strength σb (MPa)≥520, conditional yield strength σ0.2 (MPa)≥205, elongation δ5 (%)≥40, area shrinkage ψ (%)≥60, hardness: ≤ 187HB;≤90HRB;≤200HV, density (20℃, Kg/dm2): 7.93, melting point (℃): 1398~1454, specific heat capacity (0~100℃, KJ•kg-1K-1): 0.50, thermal conductivity (W•m-1• K-1): (100℃) 16.3, (500℃) 21.5, Coefficient of Linear Expansion (10-6•K-1): (0~100℃) 17.2, (0~500℃ ) 18.4, resistivity (20℃, 10-6Ω•m): 0.73, longitudinal elastic modulus (20℃, KN•mm2): 193

1.Welders must pass the corresponding test pieces in accordance with the provisions of the "Examination Rules" before they can start welding. 2. It is strictly forbidden to ignite the arc, test current or weld temporary supports at will on the surface of the weldment. 3. The argon arc welding handle and the argon gas decompression flowmeter used by the welder should be checked frequently to ensure that the argon gas is in a laminar flow state during the argon arc welding back cover. 4. Before the interface, the oil, paint and rust on the surface of the groove and the inner and outer walls of the base metal should be cleaned until it emits a metallic luster. 5. The interface gap should be uniform and straight, and strong counterparts are prohibited. The misalignment value should be less than 10% of the wall thickness and not greater than 1mm. 6. When the local gap of the interface is too large, it should be trimmed, and it is strictly forbidden to add plugs in the gap. 7. After the interface is qualified, there should be 4-5 points according to the length of the interface. The material of the spot welding should be the same as the formal welding. The length of the spot welding is 10-15mm and the thickness is 3-4mm. 8. After the primer is completed, the quality of the primer weld should be carefully checked, and the argon arc welding cover welding should be carried out after confirming that it is qualified. 9. The arc striking and arc ending must be carried out in the interface, the arc ending should fill the molten pool, and lead the arc to the groove to extinguish the arc.

Austenitic stainless steel: The microstructure of austenitic stainless steel is face-centered cubic crystal, which is non-magnetic and cannot be strengthened by heat treatment, and its strength can only be improved by cold working strengthening. Austenitic stainless steel has corrosion resistance, good plasticity and toughness at room temperature and low temperature, easy to form, good weldability, and is the most widely used in industry. Its output accounts for about 70% of stainless steel production. Its products include plates, bars, steel pipes, steel strips, steel wires and forgings. According to the matrix type of austenite, austenitic stainless steel can be divided into two series of chromium-nickel austenitic stainless steel. There are many grades of austenitic stainless steel, but the ones that are mass produced and used are 0Cr18Ni9, 00Cr18Ni10, 0Cr17Ni12Mo2, 00Cr17Ni14Mo2 and corresponding improved grades. The output accounts for about 50% of the entire stainless steel output.

There are two classification methods of stainless steel: One is divided into chromium stainless steel and chromium-nickel stainless steel according to the characteristics of alloying elements; The other is divided into martensitic (M) stainless steel, Ferritic (F) stainless steel, austenitic (A) stainless steel and duplex (austenitic A-ferritic F) stainless steel.

Unlike other surfaces, stainless steel is surprisingly easy to clean: just wipe away any streaks or smudges with a specialty cleaner made for appliances. Use a little elbow grease to get rid of any oily residue or stubborn fingerprints. If you don't have any stainless steel appliance cleaners on hand, you can use other at-home cleaners for a quick spiff up. Never use cleaners or scrubbers designed just for stainless steel sinks or cookware on appliances. They can be too abrasive and scratch the finish.

Stainless steel was originally developed for cutlery. Its resistance to corrosion and oxidation earned it the name [stainless" - although it`s not actually steel. (Stainless steel contains at least 10.5 percent chromium and other elements like nickel, titanium and copper.) This material is now commonly used for countertops and appliances like refrigerators, microwaves and dishwashers. The finish looks sleek and modern while being strong and durable. Stainless steel is also popular because it`s typically easy to clean and maintain. Keep reading for tips on how to clean, maintain and protect your stainless steel appliances and surfaces and keep them looking shiny and new. Stainless SteelSTEPS TO CLEAN S