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Hello, Kangda Steel Ball answers for you: SUS316L refers to the American standard.
316L, which is a kind of stainless steel, has good rust resistance, corrosion resistance, and is a stainless steel material.
It has the best anti-rust effect, commonly known as medical materials, which can be used in the human body and medical devices.
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The difference between the two: The main difference between L and 304 in terms of chemical composition is that 316L contains MO. Molybdenum is added to austenitic stainless steel to improve the thermal strength and creep strength of the steel, and to improve its resistance to pitting and intergranular corrosion.
MO can passivate the steel surface in both reducing and strong oxidizing salt solutions, which can improve the corrosion resistance of steel and prevent pitting corrosion of steel in chloride solution.
The addition of MO can improve the resistance to reducing acids and pitting, and the reduction of carbon content can improve the resistance to intergranular corrosion and improve the weldability. The addition of MO can better prevent pitting corrosion, 304 belongs to low-carbon stainless steel, and 316L belongs to ultra-low-carbon stainless steel, and the lower carbon content can reduce the occurrence of intergranular corrosion, but both 304 and 316L are more sensitive to Cl particles, and the ability of 304 to resist Cl- is very different from 306L, and 316L is generally used in places where the Cl- content is relatively high.
2. The difference between 316L and 304 is very large, mainly in terms of intergranular corrosion. 304 belongs to low-carbon stainless steel and 316L belongs to ultra-low-carbon stainless steel, the higher the carbon content, the weaker the steel's ability to resist intergranular corrosion, so 316L is better than 304 in terms of intergranular corrosion resistance.
l Stainless steel has the maximum carbon content, which can be used in applications that cannot be annealed after welding and that require maximum corrosion resistance. In a general sense, the corrosion resistance and intergranular corrosion resistance of 316L are better than those of 304; In terms of welding performance, due to the low carbon content of 316L and other comprehensive comparisons, its performance is better than that of 304; In terms of mechanical properties, the strength of 304 is higher than that of 316L; In terms of machinability, 316L has strong machinability.
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SUS316 belongs to the Japanese standard austenitic stainless steel, and the implementation standard: JIS G4303-2005
SUS316 stainless steel has a higher corrosion resistance and high temperature strength due to the addition of MO element. The corrosion resistance is better than that of SUS304 stainless steel, and it has good corrosion resistance in the production process of pulp and paper. And SUS316 stainless steel is also resistant to the erosion of the ocean and the aggressive industrial atmosphere.
Mainly used for: seawater equipment, chemicals, dyes, papermaking, oxalic acid, fertilizer and other production equipment; Photography, food industry, coastal facilities, ropes, CD rods, bolts, nuts.
The chemical composition of SUS316 stainless steel is shown in the following figure:
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SUS316 belongs to the Japanese standard austenitic stainless steel, and the implementation standard: JIS G4303-2005
SUS316 stainless steel plasticity, toughness, cold denaturation, welding process performance before the state is good, 316 high temperature strength is good, 316L high temperature performance is slightly worse, but the corrosion resistance is better than 316, due to the low carbon content and containing 2% 3% molybdenum, improve the corrosion resistance to reducing salts and various inorganic acids and organic acids, alkalis, salts, not closed at the same time high temperature strength.
SUS316 chemical formation and withering stool is divided into the following figure:
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1: Corresponding grade SUS316 stainless steel.
Two: chemical composition.
c:≤ si≤ mn≤ p≤ s≤ ni crmo ti≥5*c%~
Three: the application of rock wide range of application fields:
316L stainless steel is added with MO, so its corrosion resistance, atmospheric corrosion resistance and high temperature strength are particularly good, and can be used under harsh conditions; Excellent work hardening (non-magnetic). Excellent strength at high temperatures. 316L stainless steel is an austenitic stainless steel and cannot be strengthened by heat treatment.
It has good strength, plasticity, toughness and cold formability, as well as good low-temperature properties. Due to the addition of 2% MO on the basis of Cr18Ni8, the steel is endowed with good resistance to reducing media and pitting resistance. It has suitable corrosion resistance in various organic acids, inorganic acids, alkalis, salts and seawater.
In reducing acidic media, its corrosion resistance is much better than that of 304
Four: Overview. The corrosion resistance of stainless steel is better than that of 304 stainless steel, and it has good corrosion resistance in the production process of pulp and paper.
And 316 stainless steel is also resistant to the erosion of the ocean and the aggressive industrial atmosphere. In intermittent use below 1600 degrees and continuous use below 1700 degrees, 316 stainless steel has good oxidation resistance. In the range of 800-1575 degrees, guess that 316 stainless steel should not act continuously, but when 316 stainless steel is used continuously outside this temperature range, the stainless steel has good heat resistance.
316L stainless steel has better resistance to carbide precipitation than 316 stainless steel, and can be used in the above temperature ranges. Annealing is carried out in the temperature range of 1850-2050 degrees, followed by rapid annealing, followed by rapid cooling. It has high temperature resistance, easy processing, and high strength.
316L stainless steel, no post-weld annealing is required.
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SUS316 is an austenitic stainless steel.
SUS is the representative letter of the Japanese stainless steel standard, SUS316, which means that the 316 stainless steel that meets the Japanese standard stool grip standard. Meaning of SUS316: SUS is the slag number of stainless steel in the Japanese JIS standard.
SUS is the standard for this material, and 316 stainless steel is a grade of stainless steel produced in accordance with the American ASTM standard. 316 is equivalent to 0Cr17Ni12Mo2 stainless steel in China, and Japan also quoted the name of the United States and called it: SUS316.
SUS316 stainless steel has good plasticity, toughness, cold denaturation and welding process performance, 316 high temperature strength is good, 316L high temperature performance is slightly worse, but the corrosion resistance is better than 316, due to the low carbon content and containing 2% 3% molybdenum, it improves the corrosion resistance of reducing salts and various inorganic acids and organic acids, alkalis and salts, and high temperature strength.
Stainless steel other classifications
1. Duplex stainless steel.
Duplex stainless steel refers to ferrite and austenite accounting for about 50% each, and generally the content of less phase also needs to reach at least 30%. In the case of low C content, the CR content is 18% to 28%, and the Ni content is 3% to 10%. Some steels also contain alloying elements such as Mo, Cu, Nb, Ti, and N.
This type of steel has the characteristics of both austenitic and ferritic stainless steels.
Compared with ferrite, it has higher plasticity, toughness, no brittleness at room temperature, significantly improved intergranular corrosion resistance and welding performance, and also maintains the 475 brittleness and high thermal conductivity of ferritic stainless steel, and has the characteristics of superplasticity.
2. Precipitation hardening stainless steel.
The matrix structure of precipitation-hardened stainless steels can be either martensitic or austenite, depending on the composition and treatment. Age-hardening martensitic stainless steels combine good corrosion resistance with simple heat treatment.
The above content refers to Encyclopedia-sus316
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The 316 is made of stainless steel.
316 stainless steel is a kind of stainless steel, due to the addition of MO elements, its corrosion resistance and high temperature strength have been greatly improved, and the high temperature resistance can reach 1200-1300 degrees, which can be used under harsh conditions.
The main uses are pulp and paper equipment heat exchangers, dyeing equipment, film processing equipment, pipelines, materials for the exterior of buildings in coastal areas, and in 2013, it was also used in the field of solenoid valves, mainly used in housings, clamps, balls, valve bodies, valve seats, nuts, valve stems, etc. Stainless steel refers to steel that is resistant to corrosion by weak media such as atmosphere, steam, and water, while acid-resistant steel refers to steel that is resistant to corrosion by chemically corrosive media such as acid, alkali, and salt.
The main features of stainless steel
The requirements for welding performance are also different for different product uses, and a class of tableware generally does not have requirements for welding performance, even including some pot selling shed enterprises, but most of the products need raw materials to weld in Qing, and the connection performance is good, such as two types of tableware, thermos cups, steel pipes, water heaters, water dispensers, etc.
The vast majority of stainless steel products require good corrosion resistance, like:
Class 1 and II tableware, kitchen utensils, water heaters, water dispensers, etc., some foreign businessmen also do corrosion resistance tests on products, heat to boiling with NaCl aqueous solution, pour out the solution after a period of time, wash and dry, weigh the weight loss, to determine the degree of corrosion.
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It is an austenitic stainless steel。This material is not easily oxidized by air in the natural environment of acid and alkali, and it is not easy to be corroded in the natural environment of humidity and cold. In addition, due to its relatively high content of chemical elements, it has very good properties, such as compressive strength, ability to withstand high temperatures, and the ability to work continuously in a natural environment with extreme high temperatures.
1.Duplex stainless steelDuplex refers to stainless steel plates with a metallographic structure of martensitic, each accounting for about 50%. Typically, low-phase components must be at least 30% stainless steel.
At low C content, R is between 18% and 28% and Ni is between 3% and 10%. Some steels also contain aluminum alloy elements, such as Mo, Cu, NB, Ti, N, which have higher plastic deformation and ductility compared with metallographic structure, no room temperature ductility, and significantly improved stress corrosion resistance and welding performance. In addition, the metallographic stainless steel plate retains the ductility and high heat transfer coefficient of 475, and has the characteristics of superplastic deformation.
Compared with the side-ascend martensitic steel plate, it has higher compressive strength, corrosion resistance and fluoride intergranular corrosion resistance. Duplex steel has excellent resistance to pitting corrosion and is also a nickel-saving stainless steel plate. 2.
Depending on the composition and processing method, the substrate mechanism used to deposit hard-bottomed stainless steel plates can be austenitic or martensitic. Aged hard-bottom austenitic stainless steel plate has excellent corrosion resistance and simple heat treatment process.
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<> austenitic stainless steel. This material is not easy to oxidize in acidic and alkaline environments and is in excellent condition, not easy to be corroded in humid environments, and because it contains a high proportion of metal elements, it has good creep strength, can withstand high temperatures, and can continue to work in extremely high temperature environments. Its maximum operating temperature should be controlled at about 1,200 degrees Celsius.
It is widely used in petrochemical, electroslag products, medical drugs, light textile and spike weaving industry, food industry, machinery and construction, nuclear power, aerospace and military industry.
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Summary. Hello, SUS316LI
It is an austenitic stainless steelThis material is not easily oxidized by air in the natural environment of acid and alkali, and is not easily eroded in the natural environment of humidity and cold. In addition, it has very good properties due to the relatively high chemical elements, such as:
Compressive strength, can withstand high temperatures, and can continue to work in extreme high temperatures in natural environments, etc.
What material is SUS316LI?
Hello, SUS316LI It is austenitic stainless steel. This material is not easy to be oxidized by air in the natural environment of acid and alkali, and is not easy to be eroded in the natural early sweet potato environment of humidity and cold land. In addition, it has very good properties due to the relatively high chemical elements, such as:
Compressive strength, the ability to withstand high temperatures, and the ability to continue working in extremely high natural environments, etc.
Is this stainless steel suitable for processing cutlery basins and the like?
This is not food grade.
Not recommended.
and other materials can improve the surface hardness through ion nitriding, can be treated by ion nitriding, corrosion resistance will be further improved austenitic stainless steel is generally hardened by machining, Qingdao Fengdong has rich experience in ion nitriding of austenitic stainless steel, 316L, if only surface hardening treatment.
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