Stainless steel and the difference between carbon steel and high carbon steel

Stainless Steel vs. Carbon Steel Comparison:

1. Density. Carbon steel is slightly denser than ferritic and martensitic type stainless steels.

and slightly lower than austenitic stainless steel;

2. Resistivity.

The resistivity increases in order of carbon steel, ferritic, martensitic and austenitic stainless steels.

3. Linear expansion coefficient.

The order of size is similar, with austenitic stainless steel being the highest and carbon steel being the smallest;

4. Carbon steel, ferritic and martensitic stainless steel are magnetic, austenitic stainless steel is non-magnetic, but its cold work hardening will produce magnetism when generating martensitic phase transformation, and heat treatment methods can be used to eliminate this martensitic structure and restore its non-magnetic.

Compared with carbon steel, austenitic stainless steel has the following characteristics:

1) High resistivity, about 5 times that of carbon steel.

2) The large linear expansion coefficient is 40% larger than that of carbon steel, and with the increase of temperature, the value of linear expansion coefficient also increases accordingly.

3) Low thermal conductivity.

About 1 3 of carbon steel.

High-carbon steel. The hardness and strength mainly depend on the amount of dissolved carbon in the steel, and increase with the increase of the amount of dissolved carbon. When the amount of solid solution carbon is exceeded, the hardness does not increase after quenching, but the amount of excess carbide increases, the wear resistance of the steel increases slightly, and the plasticity, toughness and elasticity decrease.

For. Therefore, different steel grades are often selected according to the use conditions and the strength and toughness of the steel.

Stainless steel refers to the main element CR is higher than 12%, which can make the steel in a passivated state and has the characteristics of stainless steel. Stainless steel is actually a general term for stainless steel (resistant to weak corrosive media such as atmosphere and water) and acid-resistant steel (resistant to strong corrosive media such as acid, alkali and salt). Stainless steel is not necessarily acid-resistant, and acid-resistant steels generally have good stainless properties.

Classification of stainless steel:

1.Stainless steel is divided into ferritic type, martensitic type, austenitic type, austenitic + ferritic type and precipitation hardening type stainless steel according to its microstructure.

2.Stainless steel is broadly divided into high-chromium type stainless steel and high-chromium-nickel type stainless steel according to the main alloying elements.

High-chromium stainless steels include martensitic stainless steels and ferritic stainless steels.

High-chromium-nickel stainless steels include austenitic, austenitic + ferritic and precipitation-hardened stainless steels.

Carbon steel and high-carbon steel do not have the passivation and rust resistance of stainless steel.

The most obvious difference is in the "stainless steel", of course, the stainless steel is relatively speaking, because the stainless steel contains a sufficient amount of CR to form a Cr2O3 ton synovial film, the tissue FE continues to oxidize.

The most obvious is the resistance to atmospheric corrosion.

It's just not rusty.

Stainless steel does not rust.

The three can be distinguished, carbon steel is generally black or polished into a bright color, stainless steel is also white.

It is also different in terms of magnetism. There is no difference between carbon steel and galvanized steel, stainless steel is generally not magnetic, but it is not absolute, austenite is not magnetic, but ferrite is, but it is also weaker.

1.The ingredients are different. Carbon steel is mainly iron.

It also contains a small amount of carbon (<2%); In addition to iron and carbon, stainless steel also contains some other metal elements, mainly chromium, nickel, titanium, etc. 2.Performance is not the same.

Of course, the first is that stainless steel is more resistant to corrosion; Secondly, the mechanical properties are also different, the most used type of stainless steel (austenitic stainless steel) has good strength, but the hardness is not high, and there is no magnetism. In fact, stainless steel cannot be generalized, and it is very different from each other, but the most basic is probably these.

Summary. Dear, I am glad to answer for you: which is a good answer:

Dear, high-carbon steel is going to be better stainless steel and carbon steel belong to the same body, both are steel. Steel that contains only carbon is called carbon steel, while stainless steel is steel with a high content of alloy added to prevent rust. When it comes to durability, both high-carbon steel and stainless steel are very durable.

However, the biggest difference is in abrasion and corrosion resistance. Due to its high chromium content, stainless steel does not rust but wears out quickly when used in wear equipment. High-carbon steel is stronger and durable and may not wear easily, but it can corrode and rust when exposed to moisture.

Which is better, high-carbon steel or stainless steel.

Dear, I'm glad to answer for you: which is better between high-carbon steel and stainless steelAnswer: Dear, high-carbon steel is a better stainless steel and carbon steel belong to the same body, both are steel.

Steel that contains only carbon is called carbon steel, while stainless steel is steel with a high content of alloy added to prevent rust. When it comes to durability, both high-carbon steel and stainless steel are very durable. However, the biggest difference is in abrasion and corrosion resistance.

Due to its high chromium content, stainless steel does not rust but wears out quickly when used in wear equipment. High-carbon steel is stronger and durable and may not wear easily, but it can corrode and rust when exposed to moisture.

For the elderly's commode, it is better to buy high-carbon steel or stainless steel.

Kiss, it's better to buy high-carbon steel for the old man's commode.

You don't say that it will corrode and rust when it is wet, why do you recommend buying high-carbon steel?

Dear, stainless steel is more prone to rust when used.

The differences between high-carbon steel and stainless steel are as follows:

1. The corrosion resistance is different.

Both carbon steel and stainless steel contain the element iron. When iron is exposed to the environment, the oxygen ridge slides vertically, resulting in rust. Whereas, chromium is added to stainless steel, and chromium binds to oxygen more easily than iron.

When chromium adheres to oxygen, it forms a layer of chromium oxide that protects steel from degradation and corrosion. Carbon steel has a low chromium content, and a small amount of chromium cannot form this chromium oxide layer. Therefore, stainless steel is more resistant to corrosion than carbon steel.

2. The wear resistance is different.

High-carbon steel is mainly used to make tools, make springs, and wear-resistant parts.

Stainless steel is widely used in curtain walls, side walls, roofs and other architectural purposes, and is also widely used in the field of 3D printing.

3. The appearance is different.

The main components of stainless steel are metals such as chromium and nickel, so the appearance of stainless steel is mostly silver and bright, and its surface is smooth and has a very strong metallic luster.

The main component of carbon steel is carbon and iron alloy, so the color of carbon steel is relatively gray, and the surface is relatively rough compared to stainless steel.

Carbon Steel and Stainless Steel Introduction:

Carbon steel is an iron-carbon alloy with a carbon content. It is also called carbon steel. Generally, it also contains small amounts of silicon, manganese, sulfur and phosphorus. Generally, the higher the carbon content in carbon steel, the higher the hardness and the higher the strength, but the lower the plasticity.

Stainless steel is the abbreviation of stainless acid resistant steel, and the steel grade that is resistant to weak corrosive media such as air, steam, and water or has stainless steel is called stainless steel; The steel that is resistant to corrosion by chemical corrosive media (acid, alkali, salt and other chemical attack) is called acid-resistant steel.

Stainless steel is defined in GB T20878-2007 as stainless steel, corrosion resistance as the main characteristics, and the chromium content is at least, and the carbon content is not more than the maximum. <>

Difference Between Carbon Steel and Stainless Steel:

1.Carbon steel and stainless steel have different densities: carbon steel is slightly denser than ferritic and martensitic stainless steels, but slightly lower than austenitic stainless steels.

2.The electrical resistance of carbon steel is different from that of stainless steel: the resistivity increases in the order of carbon steel, ferritic, martensitic, and austenitic stainless steels.

3.Carbon steel and stainless steel have different coefficient of linear expansion: the order of magnitude of the coefficient of linear expansion is similar, with austenitic stainless steel being the highest and carbon steel being the smallest.

4.Carbon steel is magnetic unlike some stainless steels: carbon steel, ferritic stainless steel, martensitic stainless steel are magnetic, austenitic stainless steel is non-magnetic, but cold work hardening produces a martensitic phase transition.

Heat treatment can be used to eliminate this martensitic structure and restore its non-magnetic structure.

Both stainless steel and carbon steel belong to steel structures. Because the materials contained in the manufacturing of the two are different, there is still a difference in itself, carbon steel contains carbon elements, while stainless steel contains aluminum alloy and other materials.

The density is different, and the density of carbon steel is higher than that of stainless steel. There are iron elements in carbon steel and stainless steel, and iron is relatively easy to oxidize, so the corrosion resistance of welding iron materials is relatively poor, but in addition to iron elements in stainless steel, chromium elements are also added, which can effectively increase the corrosion resistance of the material, so in contrast, stainless steel has stronger corrosion resistance.

Both carbon steel and stainless steel have a certain degree of ductility, but because stainless steel contains a large amount of nickel elements, which can effectively improve the ductility of the product, the ductility of stainless steel will also be better than carbon steel. In addition, for ductility, it refers to the degree to which the material can be pressed, and the better the ductility, the thinner the material can be pressed.

The composition is different, stainless steel means stainless acid-resistant steel, acid-alkali resistant, oxidation-resistant ingredients, so it is called stainless steel. Carbonic acid is a carbon alloy with a carbon content of 100 to 100 percent, also called carbon steel, and there is a small amount of silicon in it.

The resistance is different. Stainless steel has a higher resistivity, while carbon steel has a lower resistivity. Stainless steel is magnetically inducted, and magnetic induction will be generated when stainless steel is coldly processed, and it can be demagnetized when hot water is hot.

In terms of hardness, carbon steel is harder than stainless steel, and secondly, from the perspective of use, stainless steel will be more durable. Because the wear resistance of carbon steel is very good, it is mostly used in springs, low-speed wheels, etc., while stainless steel is particularly convex in rust prevention, so it is mostly used in anti-theft nets, kitchen utensils, etc., can be used to make kitchen countertops, cabinet doors, etc., but it is not suitable for loading food, when stainless steel is heated, it will produce toxic reactions.

Carbon steel and stainless steel have the same basic composition of iron and carbon. The main difference between them is the alloy content, carbon steel has an alloy content lower than that, while stainless steel has a chromium content greater than or equal to. This essential difference is what gives carbon steel and stainless steel their unique physical properties.

Carbon steel and stainless steel are different, but it is not possible to say who is stronger. Everything is related to the use environment. Each material has advantages and disadvantages, and the key is to match the steel to the application.

1) Advantages and disadvantages of carbon steel.

Advantages: 1. Low and easy to smelt; 2. Good processing technology; 3. Improve performance (c%, heat treatment).

Disadvantages: 1. Poor hardenability; 2. Low strength level and low yield ratio; 3. Poor tempering stability and heat resistance; 4. It is not resistant to low temperature, and carbon steel becomes brittle below the tough-brittle conversion temperature; 5. It is not corrosion-resistant, and carbon steel cannot resist the corrosion of the atmosphere and acid and alkali salts; 6. Low magnetic permeability, low permeability of carbon steel; 7. Non-magnetic, carbon steel will inevitably be magnetized in the magnetic field.

2) Advantages and disadvantages of stainless steel.

The main advantages of stainless steel are: corrosion resistance or high temperature resistance, general acid resistance to medium, as well as heat resistance, high temperature oxidation resistance (heat resistance and no peeling) high temperature stainless steel.

Disadvantages of stainless steel: mainly high cost and more expensive; In addition, stainless steel is not resistant to corrosion by alkaline media.