What is the difference between 420, 430 stainless steel

Properties are different: 420 stainless steel.

It is a martensitic stainless steel, and because it hardens after quenching, a wide range of properties can be obtained by selecting different compositions and heat treatment conditions. 430 stainless steel.

It belongs to ferritic stainless steel.

After heat treatment, the hardness basically does not change, and the texture is soft.

Different uses: 420 stainless steel is mainly used as a knife, surgery.

utensils, etc. Ferritic stainless steel, for decorative purposes, e.g. for car accessories.

Fields of application. There are many reasons why the surface finish of stainless steel is important in construction applications. Corrosive environments require a smooth surface because the surface is smooth and not prone to fouling. The deposition of dirt can cause rust and even corrosion of stainless steel.

Hygienic conditions are important for many industries, such as food processing, catering, brewing and chemicals, where surfaces must be easy to clean on a daily basis and often with chemical cleaning agents.

In spacious halls, stainless steel is the most commonly used material for elevator decorative panels, although the handprints on the surface can be erased, but it affects the appearance, so it is best to choose a suitable surface to prevent handprints.

In public places, stainless steel surfaces are often scribbled, however, an important feature is that they can be washed away, which is a significant feature of stainless steel over aluminum. The surface of aluminum is prone to leaving marks and is often difficult to remove. When cleaning the surface of stainless steel, it should be cleaned along the lines of stainless steel, because some surface processing lines are unidirectional.

420 stainless steel is a martensitic stainless steel, and because it hardens after quenching, a wide range of properties can be obtained by selecting different compositions and heat treatment conditions. 420 stainless steel is mainly used as knives, surgical tools, etc.

430 stainless steel belongs to ferritic stainless steel, the hardness basically does not change after heat treatment, and the texture is soft. Compared with martensitic stainless steel, 430 stainless steel has good forming processability, corrosion resistance and welding performance, and is generally used as a corrosion-resistant steel.

304 is an austenitic stainless steel and 403 is a ferritic stainless steel.

Comparison of 304 stainless steel and 403 stainless steel:

1. Corrosion resistance: 403 stainless steel contains chromium, basically no nickel metal, and 304 stainless steel contains more chromium and nickel metal, so 403 stainless steel has no better corrosion resistance than 304 stainless steel.

2. Stability performance: 403 stainless steel is ferritic form, 304 stainless steel is austenitic form, 304 stainless steel is more stable than 403 stainless steel.

3. Toughness: 304 stainless steel has strong toughness, which is stronger than 403 stainless steel.

4. Thermal conductivity: the ferrite of 403 stainless steel has better thermal conductivity than the austenitic of 304 stainless steel.

403 stainless steel use field:

Stainless steel is mainly used for building decoration, fuel burner parts, household appliances, and home appliance parts.

2. Add 403F steel grade with easy machinability to 403 steel, which is mainly used for automatic lathes, bolts and nuts.

304 stainless steel use field:

Stainless steel has the characteristics of high temperature resistance, good processing performance and high toughness, and is widely used in industrial and furniture decoration industries and food and medical industries.

Stainless steel has strong corrosion resistance and is widely used in the production of equipment and parts that require good comprehensive performance.

Pro, 403 is equivalent to China's 1Cr12 stainless steel pipe, containing carbon, chromium 12% 403 stainless steel pipe belongs to the international stainless steel labeling method. 403 stainless steel pipe--S40300 (American AISI, ASTM) 403 corresponding to the Chinese grade is 1Cr12 characteristics and uses: as a good stainless and heat-resistant steel for steam turbine blades and high-stress components.

Stainless steel 430 is a general-purpose steel with good corrosion resistance and oxidation resistance, which is a ferritic stainless steel, which is widely used in food tableware because it is safe and non-toxic. The thermal conductivity is better than that of austenite, the coefficient of thermal expansion is smaller than that of austenite, the heat fatigue is resistant, the stabilized element titanium is added, and the mechanical properties of the weld part are good. 430 stainless steel is used for building decoration, fuel burner parts, household appliances, and home appliance parts.

Stainless steel 430 is a general-purpose steel grade with good corrosion resistance and oxidation resistance, which belongs to ferritic stainless steel.

Because it is safe and non-toxic, it is widely used in food tableware. The thermal conductivity is better than that of austenite, the coefficient of thermal expansion is smaller than that of austenite, the heat fatigue resistance, the addition of the stabilized element titanium, and the mechanical properties of the weld part.

Good. 430 stainless steel.

It is used for architectural decoration, fuel burner parts, household appliances, and home appliance parts.

Stainless steel refers to the steel that is resistant to weak corrosive media such as air, steam, water and chemical corrosive media such as acid, alkali and salt, also known as stainless acid-resistant steel.

In practical application, the steel that is resistant to corrosion by weak corrosive media is often called stainless steel, and the steel that is resistant to chemical media corrosion is called acid-resistant steel. Due to the difference in chemical composition between the two, the former is not necessarily resistant to chemical media, while the latter is generally stainless steel. The corrosion resistance of stainless steel depends on the alloying elements contained in the steel.

The types of stainless steel are divided into martensitic steel, ferritic steel, austenitic steel, etc. according to the microstructure. In addition, it can be divided into chromium stainless steel, chromium-nickel stainless steel and chromium-manganese-nitrogen stainless steel according to the composition.

Summary. Pro, it is understood that 430 to 410***. 430 and 410 are chromium stainless steel, which is called stainless iron in the market, and can be attracted with magnets, this material has a certain anti-corrosion and anti-rust performance, but it is low, nickel-free, and the anti-rust and anti-corrosion performance is far from that of chromium-nickel stainless steel.

430 stainless steel contains chromium 18, 410 stainless steel contains chromium 13, chromium alloy has anti-rust and anti-corrosion properties, 430 anti-rust and anti-corrosion properties are greater than 410.

Which is better 430 or 410 stainless steel?

Pro, it is understood that 430 to 410***. 430 and 410 are chromium stainless steel, which is called stainless iron in the market, and can be attracted with magnets, this material has a certain anti-corrosion and anti-rust performance, but it is low, nickel-free, and the anti-rust and anti-corrosion performance is far from that of chromium-nickel stainless steel. 430 stainless steel contains chromium 18, 410 stainless steel contains chromium 13, chromium alloy has anti-rust and anti-corrosion properties, 430 anti-rust and anti-corrosion properties are greater than 410.

Both 430 and 410 belong to ferritic stainless steel, 410L 13CR-low C On the basis of 410 steel, the C content is reduced, and its processability, welding deformation resistance, and high temperature oxidation resistance are excellent. Mechanical construction parts, engine exhaust pipes, boiler combustion chambers, burners. 430 16cr is a representative steel grade of ferritic steel, with excellent thermal expansion rate, formability and oxidation resistance.

Heat-resistant appliances, burners, home appliances, Class 2 tableware, kitchen sinks, exterior decoration materials, bolts, nuts, CD rods, screens.

The carbon content and chromium content of 430 stainless steel are higher than that of 410. It has better corrosion resistance and machinability than 410. 1. Stainless steel bar 410:

Martensitic (high-strength chromium steel), good wear resistance, corrosion resistance and machinability. 2. Stainless steel bar 430: good formability, thermal conductivity, corrosion resistance and thermal conductivity.

2. Different chemical composition 1, stainless steel bar 410: c, si, mn, p, s, stainless steel bar 430: (c):

: Chromium (CR) turns left |Turn right to expand the profile:

Introduction to the characteristics of stainless steel bar 430: 1. In a dry and clean atmosphere, it has absolutely excellent anti-rust ability, but if it is moved to the coastal area, it will soon rust in the sea fog containing a lot of salt A small amount of martensite or ferrite structure in the rust steel bar The magnetism of 304 steel always shows weak magnetism, and the austenite structure can be restored and stabilized by high-temperature solution treatment, so as to eliminate the magnetism.

Summary. Hello, 420 is a kind of martensitic stainless steel, 430 is ferritic stainless steel, these two materials have strong magnetism, anti-corrosion performance is average, not as good as 300 series stainless steel.

420 stainless steel has a high carbon content, can be thermohardened, heat treatment hardness can reach between 45 and 55 degrees, with a certain wear resistance and corrosion resistance, 420 stainless steel is suitable for all kinds of precision machinery, bearings, electrical, equipment, instruments, meters, transportation, household appliances, etc. It is mostly used in the manufacture of parts that are resistant to atmospheric, water vapor, water and oxidizing acids.

430 stainless iron chromium content is high, has good corrosion resistance and general steel grades, good toughness, can be done deep drawing treatment, thermal conductivity is better than austenite, thermal expansion coefficient is smaller than austenite, heat fatigue resistance, add stabilized element titanium, weld parts have good mechanical properties, mainly used for building decoration, fuel burner parts, household appliances, home appliance parts.

Difference Between 420 Stainless Iron and 430 Stainless Iron.

Hello, 420 is a kind of martensitic stainless steel, 430 is ferritic stainless steel, these two materials have strong magnetism, anti-corrosion performance is average, not as good as 300 series stainless steel. 420 stainless steel has a high carbon content, can be thermohardened, heat treatment hardness can reach between 45 and 55 degrees, with a certain wear resistance and corrosion resistance, 420 stainless steel is suitable for all kinds of precision machinery, Jinyan bearings, electrical, equipment, instruments, meters, transportation, household appliances, etc. It is mostly used in the manufacture of parts that are resistant to atmospheric, water vapor, water and oxidative finch acid.

430 stainless iron chromium content is high, has good corrosion resistance and general steel grades, good toughness, can be done deep drawing treatment, thermal conductivity is better than austenite, thermal expansion coefficient is smaller than austenite, heat fatigue resistance, Xiangshu silver adds stabilizing element titanium, weld parts have good mechanical properties, mainly used for building decoration, fuel burner parts, household appliances, home appliance parts.

Dear, I hope it can help you.

The difference between 430 stainless steel and 403 stainless steel is mainly reflected in the following aspects:

Chemical compositionThe chemical composition of 430 stainless steel includes chromium (Cr) 16-18, nickel (Zhi Bench wheel Ni), manganese (Mn) < 1, silicon (Si) <1, phosphorus (P), sulfur (S) and iron (Fe) balance. The chemical composition of 403 stainless steel includes chromium (Cr), nickel (Ni), manganese (Mn), <1, silicon (Si), phosphorus (P), sulfur (S), iron (Fe) allowance.

As a result, 430 stainless steel has a higher amount of chromium, while 403 stainless steel has a comparatively lower amount of chromium.

Strength and corrosion resistance: Due to the higher chromium content in 430 stainless steel, it has better corrosion resistance and strength. Whereas, 403 stainless steel has relatively low corrosion resistance and strength, so it is mainly used in low-demand industrial applications.

Heat treatment capabilities: Since 430 stainless steel contains chromium, it can be hardened by heating, improving its strength and corrosion resistance. The heat treatment ability of 403 stainless steel is poor, and the coarse withering cannot be hardened by heating.

Fields of application. Due to its high corrosion resistance and strength, 430 stainless steel is widely used in kitchenware, household products, construction and decoration fields. The application areas of 403 stainless steel are mainly in the manufacture of small parts such as needles and ball hammers, as well as low-demand mechanical parts.

The difference between 403 stainless steel and 430 stainless steel is that the chromium content is different, the chromium content in 403 stainless steel is 11% 13%, and the chromium content of 430 stainless steel is 16% 18%.

410-martensitic (high-strength chromium steel), good wear resistance, poor corrosion resistance.

416—Sulfur is added to improve the processability of the material.

420—"Cutting tool grade" martensitic steel, similar to Brinell high-chromium steel, the earliest stainless steel. It is also used for surgical knives and can be made very bright.

430 – Ferritic stainless steel, for decoration, e.g. for automotive accessories. Good formability, but poor temperature resistance and corrosion resistance.

440—High-strength cutting edge steel, slightly higher carbon content, after proper heat treatment, can obtain high yield strength, hardness can reach 58HRC, belongs to the hardest stainless steel. The most common example of an application is a "razor blade". There are three commonly used models:

440A, 440B, 440C, and 440F (easy to process).

SUS410 is a nickel-free stainless steel, which is martensitic stainless steel, with good hardenability, it has high hardness, toughness, good corrosion resistance, thermal strength and cold deformation performance, and good shock absorption. High or low temperature tempering is required, but tempering between 370-560 should be avoided.

SUS410 is a Japanese grade; 1Cr13 is the corresponding Chinese grade; X10Cr13 is the corresponding German grade; 410 is the corresponding U.S. grade.

410 is only a member of the stainless steel family, in the case of 410, there are also 0Cr13 and 1Cr13, depending on the use of which material is used.

SUS410 (13CR) has good corrosion resistance and machinability. It is a general-purpose steel and cutting tool steel. 410s is a steel grade that improves the corrosion resistance and formability of 410 steel.

410F2 is a lead-free cut steel that does not reduce the corrosion resistance of 410 steel. 410J1 is a high-strength steel grade that further improves the corrosion resistance of 410 steel. It is used for turbine blades and high-temperature parts.