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What is the best grade of stainless steel?

What types of stainless steel are there and which one is the best?
200 Series—Chromium-Nickel-Manganese Austenitic Stainless Steels
300 Series—Chromium-Nickel Austenitic Stainless Steels
301—Good ductility, used for forming products. It can also be hardened by mechanical processing. Good weldability. Wear resistance and fatigue strength are better than 304 stainless steel.
302—The corrosion resistance is the same as that of 304, and the strength is better because of the relatively high carbon content.
303—By adding a small amount of sulfur and phosphorus, it is easier to cut than 304.
304—General model; that is, 18/8 stainless steel.
309—Better temperature resistance than 304.
316—After 304, the second most widely used steel grade is mainly used in the food industry and surgical equipment, adding molybdenum to obtain a special corrosion-resistant structure. Because it has better resistance to chloride corrosion than 304, it is also used as "marine steel". SS316 is usually used in nuclear fuel recovery units. Grade 18/10 stainless steel is also generally suitable for this application level. [1]
Model 321—Similar to 304 except that the risk of material weld corrosion is reduced due to the addition of titanium.
400 Series—Ferritic and Martensitic Stainless Steels
408—good heat resistance, weak corrosion resistance, 11% Cr, 8% Ni.
409—The cheapest model (British and American), usually used as an automobile exhaust pipe, is a ferritic stainless steel (chrome steel).
410—Martensitic (high-strength chromium steel), good wear resistance and poor corrosion resistance.
416—The addition of sulfur improves the processing properties of the material.
420 - "Knives grade" martensitic steel, similar to the earliest stainless steels such as high chromium brinell steels. It is also used for surgical knives and can be made very shiny.
430—Ferritic stainless steel, for decoration, such as for car accessories. Good formability, but poor temperature resistance and corrosion resistance.
440—high-strength cutting tool steel, with slightly higher carbon content, higher yield strength can be obtained after proper heat treatment, and the hardness can reach 58HRC, which belongs to the hardest stainless steel. The most common application example is "razor blades". There are three commonly used models: 440A, 440B, 440C, and 440F (easy to process).
500 Series—Heat resistant chromium alloy steel.
600 Series—Martensitic precipitation-hardening stainless steels.
630—The most commonly used type of precipitation hardening stainless steel, usually also called 17-4; 17%Cr, 4%Ni.
I won't tell you/pig 2008-07-24 17:19
Which type of stainless steel is more expensive
The common ones are 304 201 316 310S. The more nickel content, the more expensive. The most expensive is 904L, which is like a god.
What types of stainless steel are there?
Generally 201 202 304 316 These 202 and 304 are used more
316 and 317 stainless steel (see below for the performance of 317 stainless steel) are types of molybdenum-containing stainless steel. The molybdenum content in 317 stainless steel is slightly higher than that of 316 stainless steel. Due to the molybdenum in the steel, the overall performance of this steel is better than that of 310 and 304 stainless steel. Under high temperature conditions, when the concentration of sulfuric acid is lower than 15% and higher than 85%, 316 Stainless steel has a wide range of uses. 316 stainless steel also has good resistance to chloride attack, so it is usually used in marine environments.
316L stainless steel has a maximum carbon content of 0.03 and can be used in applications where annealing after welding and where maximum corrosion resistance is required
Corrosion resistance
The corrosion resistance is better than 304 stainless steel, and it has good corrosion resistance in the production process of pulp and paper. Moreover, 316 stainless steel is also resistant to erosion by marine and aggressive industrial atmospheres.
heat resistance
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, it is best not to use 316 stainless steel continuously, but when 316 stainless steel is used continuously outside this temperature range, the stainless steel has good heat resistance. The carbide precipitation resistance of 316L stainless steel is better than that of 316 stainless steel, and the above temperature range can be used.
heat treatment
Annealing is carried out in the temperature range of 1850-2050 degrees, followed by rapid annealing and rapid cooling. 316 stainless steel cannot be hardened by heat treatment.
welding
316 stainless steel has good welding performance. All standard welding methods can be used for welding. According to the application, 316Cb, 316L or 309Cb stainless steel filler rods or welding rods can be used for welding. In order to obtain the best corrosion resistance, the welded section of 316 stainless steel needs to be annealed after welding. If 316L stainless steel is used, post-weld annealing is not required.
(Austenitic stainless steel) mainly include:
321, (1Cr18Ni9Ti) also known as 18-8
304, (0Cr18Ni9)
304L , ( 00Cr19Ni10 )
306, (0Cr17Ni12Mo2)
316L, (00Cr17Ni14Mo2)
Mo2Ti.
The main difference: 321 contains titanium
316 molybdenum
304 contains neither titanium nor molybdenum
Mo2Ti contains both molybdenum and titanium
Performance 316L is the best, 321/304 is average
What are the types of stainless steel and what are the differences between them.
Generally 201 202 304 316 These 202 and 304 are used more
316 and 317 stainless steel (see below for the performance of 317 stainless steel) are types of molybdenum-containing stainless steel. The molybdenum content in 317 stainless steel is slightly higher than that of 316 stainless steel. Due to the molybdenum in the steel, the overall performance of this steel is better than that of 310 and 304 stainless steel. Under high temperature conditions, when the concentration of sulfuric acid is lower than 15% and higher than 85%, 316 Stainless steel has a wide range of uses. 316 stainless steel also has good resistance to chloride attack, so it is usually used in marine environments.
316L stainless steel has a maximum carbon content of 0.03 and can be used in applications where annealing after welding and where maximum corrosion resistance is required
Corrosion resistance
The corrosion resistance is better than 304 stainless steel, and it has good corrosion resistance in the production process of pulp and paper. Moreover, 316 stainless steel is also resistant to erosion by marine and aggressive industrial atmospheres.
heat resistance
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, it is best not to use 316 stainless steel continuously, but when 316 stainless steel is used continuously outside this temperature range, the stainless steel has good heat resistance. The carbide precipitation resistance of 316L stainless steel is better than that of 316 stainless steel, and the above temperature range can be used.
heat treatment
Annealing is carried out in the temperature range of 1850-2050 degrees, followed by rapid annealing and rapid cooling. 316 stainless steel cannot be hardened by heat treatment.
welding
316 stainless steel has good welding performance. All standard welding methods can be used for welding. According to the application, 316Cb, 316L or 309Cb stainless steel filler rods or welding rods can be used for welding. In order to obtain the best corrosion resistance, the welded section of 316 stainless steel needs to be annealed after welding. If 316L stainless steel is used, post-weld annealing is not required.
(Austenitic stainless steel) mainly include:
321, (1Cr18Ni9Ti) also known as 18-8
304, (0Cr18Ni9)
304L , ( 00Cr19Ni10 ) 306 , ( 0Cr17Ni12Mo2 )
316L, (00Cr17Ni14Mo2)
Mo2Ti.
The main difference: 321 contains titanium
316 molybdenum
304 contains neither titanium nor molybdenum
Mo2Ti contains both molybdenum and titanium
Performance 316L is the best, 321/304 is average
Which type of stainless steel is better
Generally, the screen is made of 304 stainless steel, and its anti-rust performance is better than that of 201 stainless steel, so it is recommended to use 304. As for the surface treatment, there are several forms of brushed, mirror, satin, and sandblasting. The choice of this is purely personal preference. Generally, Hangzhou Mogo Metal Factory often makes rose gold, champagne gold, black titanium gold, local tyrant gold, antique copper, etc. Rose gold has become more popular in recent years, but brushed antique copper and stainless steel screens are the most popular. As for the styles, there are European style, Chinese style, Korean style, Japanese style, simple style, pastoral style, etc. I personally prefer the antique Chinese style stainless steel screen. Mogo Metal hopes to help you.
Which model stainless steel is best now
The common ones are 304 201 316 310S. The more nickel content, the more expensive. The most expensive is 904L, which is like a god.
The best stainless steel model? Detailed description
Model 301—Good ductility, used for forming products. It can also be hardened by mechanical processing. Good weldability. Wear resistance and fatigue strength are better than 304 stainless steel.
Model 302—The corrosion resistance is the same as 304, and the strength is better due to the relatively high carbon content.
Model 303—By adding a small amount of sulfur and phosphorus, it is easier to cut than 304.
Model 304—General model; ie 18/8 stainless steel. The GB grade is 0Cr18Ni9.
Model 309—better temperature resistance than 304.
Type 316—after 304, the second most widely used steel grade, mainly used in the food industry and surgical equipment, adding molybdenum to obtain a special corrosion-resistant structure. Because it has better resistance to chloride corrosion than 304, it is also used as "marine steel". SS316 is usually used in nuclear fuel recovery units. Grade 18/10 stainless steel is also generally suitable for this application level. [1]
Model 321—Similar to 304 except that the risk of material weld corrosion is reduced due to the addition of titanium.
400 Series—Ferritic and Martensitic Stainless Steels
Model 408—good heat resistance, weak corrosion resistance, 11% Cr, 8% Ni.
Model 409—The cheapest model (British and American), usually used for automobile exhaust pipes, is a ferritic stainless steel (chrome steel).
Model 410—martensitic (high-strength chromium steel), good wear resistance, poor corrosion resistance.
Type 416—addition of sulfur improves the machinability of the material.
Type 420—"Knives Grade" Martensitic Steel, the original stainless steel similar to Brinell High Chromium. It is also used for surgical knives and can be made very shiny.
Type 430—Ferritic stainless steel, decorative, eg for automotive trim. Good formability, but poor temperature resistance and corrosion resistance.
Model 440—High-strength knife steel with slightly higher carbon content, higher yield strength can be obtained after proper heat treatment, and the hardness can reach 58HRC, which belongs to the hardest stainless steel. The most common application example is "razor blades". There are three commonly used models: 440A, 440B, 440C, and 440F (easy to process).
500 Series—Heat resistant chromium alloy steel.
600 Series—Martensitic precipitation-hardening stainless steels.
Type 630—the most commonly used type of precipitation hardening stainless steel, also commonly called 17-4; 17%Cr, 4%Ni.
Which type of stainless steel is the most resistant to burning
310S contains silicon and has a maximum temperature of 1200 degrees Celsius.
EDEST STELL is a high-quality stainless steel manufacturer in China, exporting 304 stainless steel sheet, 316 stainless steel sheet all the year round, and cutting stainless steel sheet processing parts according to customer requirements. We have our own stainless steel sheet production factory, and our stainless steel sheet products are exported all over the world.