Stainless steel, or stainless steel, is an iron-based alloy that derives its anti-rust property from a layer of chromium oxide; In addition to at least 11% chromium, this material has molybdenum and nickel in its different grades, which improves its other mechanical properties, including heat resistance. It has an effect. As a result of its various properties, stainless steel is used in various forms such as pipes and nets in various industries, and in this article we will exclusively discuss stainless steel nets. did
Steel sheet buying guide
Stainless steel mesh is mainly used as a filter or protector and even reinforcement in composite due to its properties such as corrosion resistance, flexibility and strength against heat, with different mesh textures and sizes.
What are the physical, mechanical and chemical properties of stainless steel mesh?
Depending on the design of the net, the type and percentage of materials used, the properties of the types of steel net are different, which determines the price of stainless steel net, the most important properties can be mentioned as follows:
< b> Corrosion resistance caused by chemical agents such as chlorine, various solvents, water and acidic and alkaline environment (caused by the presence of elements such as chromium, nickel and molybdenum.)
Flexibility
Durable against cold, heat and not peeling at high temperatures
Weldability
Non-magnetic or so-called non-magnetic in the annealing state (it becomes slightly magnetized during knitting due to cold work.)
Wear-resistant
Resistant to color change
Antibacterial property, due to the presence of copper in its composition
Long life
Accurate dimensions
Versatility
Easy to clean
Sturdy construction
Easy to cut
Low resistance to wind loads
Production of stainless steel mesh in Karaj
There are two methods for making stainless steel mesh that are effective in its appearance and use; Considering that the net is prepared and presented in two ways: steel wire weaving and welding, so to make the woven net, first the raw material of the net, which is the steel tube, is placed inside the extrusion molds and then by compressing the thin wires with the desired diameter It is possible, then they are wrapped around special reels and then cut to the desired length using special devices.
In the next step, the cut wires with a long and suitable length are mounted on a belt with two ends of the roller, as in the weaving process, and then the designed shuttle moves the wire against the direction of the mounted wires continuously. With the movement of the belt, it weaves up and down; Of course, this weave is simple and other patterns can be used for weaving. To make a net or a welded wire mesh, thin wires prepared in parallel are placed on the machine in two perpendicular directions; Then the welding part of the device from above in parallel distances through electrical insulation sticks and fuses the connection areas of two perpendicular wires, and at the end this net moves forward without being damaged and this work continues.
It should be noted that in addition to the choice of material and its production, the size of the steel mesh is an important factor for the applications that will be discussed; The measure of steel netting as one of the most widely used types of netting is based on the thickness of the netting wire and the spring, and the unit of the mesh spring is generally displayed in millimeters and has an effect on the price of the netting.
Application of stainless steel mesh
304 steel mesh: 304 grade steel wire fabric is made of basic stainless alloy with a combination of 18% chromium, 8% nickel, its melting point is 1430°C, but it can be heated up to 790°C for Continuous service and up to 900 degrees Celsius used for intermediate service. This net is one of the most widely used products and is more economical than other steel nets and has high corrosion resistance; Although it is not as high as grade 316. Another beautiful feature of this net is its weldability and non-magnetic properties. Its most used in the industry is for filtration and screening of solids and liquids.
316 steel net: 316 grade steel net is made of an alloy with a combination of 18% chromium, 10% nickel and 2% molybdenum, which makes this net highly resistant to acidic environments and sea water. (due to the presence of molybdenum) and its salt. Its melting point is 1375, the maximum temperature is 850 degrees centigrade for continuous service and 900 degrees centigrade for intermediate service. This net is more expensive than 304, and due to its high strength, it is suitable for food, pharmaceutical and chemical industries, and because it has little carbon, it also has a high forming ability with heat treatment. Another feature of it is its high strength against alkaline, acidic, erosion and stretching.
Refractory steel mesh: This category of stainless steel mesh is made of different grades of steel, including 304, 309s, 309, 310, 310s, 314, 316, etc. Grades 309s and 309, which have chromium up to 22%, nickel up to 12%, and the only difference between them is the percentage of carbon, which is lower in s309, and they have the ability to withstand temperatures up to a thousand degrees Celsius, and because of this combination, they have high anti-corrosion properties and They tolerate high heat conditions. Grade 310 and s310 (maximum 26-24 chromium and 22-19 percent nickel, which is less carbon in s310) that tolerate high temperature conditions (up to 1200 degrees Celsius) and corrosion better than 304. Grade 314 has 26-23% chromium and 22-19% nickel. The main use of refractory stainless steel mesh is due to its resistance to heat and oxidation in ceramic industries, furnaces, heaters and restaurant ovens.
Anti-abrasion steel mesh: This mesh is made of steel with high carbon grades, the presence of carbon prevents friction and wear due to contact with other objects, especially when grinding if there is silica or sand. , and as a result, it is the most used in the cement industry.
Where is stainless steel wire mesh used?
As a helpful device in the printing industry
this net is used for designing electrical circuits, designing fabrics in the textile industry and printing in porcelain ceramic industries.
As a filter
Due to its anti-rust properties, steel mesh is used as a filter in the petrochemical, aerospace, transportation industries, to capture impurities such as oil in the food and dye industries.
As a protector
in the horticultural, agricultural and animal husbandry industries to protect plants, insects and animals in the architectural industry for roofs, walls, foundations, pools and tunnels, solar panels, in the food preparation industry and gas stoves and Industry for frying and grilling, the conveyor belt plays a protective role. Stainless steel wire is used, due to its anti-wear and anti-corrosion properties, it is widely used for sand sand.