According to the use, carbon steel can be divided into two categories

Categorized by use.

Construction & Engineering Steel: aOrdinary carbon structural steel; b.low-alloy structural steels; c.Reinforced steel.

Structural steel. a.Steel for machinery manufacturing: (a) quenched and tempered structural steel; (b) Case-hardened structural steel: including carburizing steel, ammonia-infiltrating steel, and steel for case hardening; easy-cut structural steel; (d) Steel for cold plastic forming: including steel for cold stamping and steel for cold heading.

b.Spring steel.

c.Bearing steel.

Tool Steel: Acarbon tool steel; b.alloy tool steel; c.High-speed tool steel.

Special performance steel: Astainless acid-resistant steel; b.Heat-resistant steel: including oxidation-resistant steel, hot-strength steel, and gas valve steel; c.electrically heated alloy steel; d.wear-resistant steel; e.steel for low temperatures; f.Steel for electricians.

Professional steel - such as bridge steel, ship steel, boiler steel, pressure vessel steel, agricultural machinery steel, etc.

The above by. Kunshan into a special steel.

1 Carbon Structural Steel.

Grade: e.g. Q235-A·F, indicating S 235MPa Features: Low cost, excellent process properties (such as weldability and cold formability).

Application: General engineering structure and general mechanical parts. For example, Q235 can make bolts, nuts, pins, hooks and less important mechanical parts, as well as rebar, section steel, steel bars, etc. in building structures.

2 High-quality carbon structural steel.

Grades: e.g. MN, 08F Application: Non-alloy steels used to manufacture important mechanical parts are generally used after heat treatment. Commonly used steel grades and uses:

08F, low mass fraction of carbon, good plasticity, low strength, used for stamping parts such as automobiles and instrument housings; 20. Good plasticity and weldability, used for parts and carburizing parts with low strength requirements, such as hoods, welding containers, small shafts, nuts, washers and carburizing gears, etc.;

45,40mn, after quenching and tempering, the comprehensive mechanical properties are good, and it is used for mechanical parts with large stress, such as gears, connecting rods, machine tool spindles, etc.;

MN steel has high strength; It is used in the manufacture of various springs, locomotive rims, and low-speed wheels.

3 Carbon tool steel.

Grade: For example, T12 steel means carbon tool steel with WC=. Features: It belongs to eutectic steel and hypereutectic steel, with high strength, hardness and good wear resistance, which is suitable for manufacturing various low-speed cutting tools.

Commonly used steel grades and uses:

T7, T8: Produce parts that require toughness to withstand a certain impact. Such as sledgehammers, punches, chisels, woodworking tools, scissors T9, T10, T11: Manufacture tools with low impact that require high hardness and high wear resistance. Such as taps, small drills, dies, and hand saw blades.

T12, T13: Make tools that are not subject to impact. Such as files, scrapers, razors, measuring tools.

4 Cast steel. Grade: e.g. ZG200-400, which means S 200MPa, B 400MPa cast steel.

Performance: The casting performance is worse than that of cast iron, but the mechanical properties are better than that of cast iron;

Carbon steel is also called carbon steel. Commonly welded mild steel (including C 0.).25%) and medium carbon steel (with c = 0.).

25%--0. 60%）；High-quality carbon structural steel).

Hello, carbon steel is steel that contains carbon and manganese, and does not contain other alloy components.

Commonly used are 45 steel, Q345B, 35 steel, 16MN and so on.

According to the different carbon content, carbon steel is divided into low carbon steel, medium carbon steel and high carbon steel, with the increase of carbon content, the hardness of carbon steel increases, and the toughness decreases.

1) Mild steel - carbon content. 2) Medium carbon steel - carbon content.

3) High carbon steel - carbon content

1) Alloy structural steel: used as engineering components (pipes and supports, etc.); Various mechanical parts (shafts, gears, springs, impellers, etc.).

2) Alloy tool steel: used as measuring tools, molds, cutters, etc.

3) Special performance steel: such as stainless steel, heat-resistant steel, etc., with special physical properties or chemical properties.

Carbon steel can generally be divided into: ordinary carbon steel, of which ordinary carbon steel can be divided into class A steel, class B steel and special class steel, high-quality carbon structural steel and carbon tool steel.

Carbon steel is actually a very hard carry, and he adds carbon in it, so the common ones are the rebar we see.

What are the types of steel Carbon steel can generally be divided into: ordinary carbon steel, of which ordinary carbon steel can be divided into class A steel, class B steel and special steel, high-quality carbon structural steel and carbon tool steel. The code and meaning of carbon steel.

Carbon steel is ordinary steel, which can be divided into low-carbon steel, medium-carbon steel, and high-carbon steel, and in general, low-carbon steel is better than other types of steel, and the properties of high-carbon steel are close to pig iron, because just is to reduce the carbon content in pig iron."

Steels that contain small amounts of manganese, phosphorus, silicon, sulfur and other elements and have a lower carbon content include high-carbon steel, medium-carbon steel and low-carbon steel.

The main difference between steel and iron is the carbon content, carbon steel has very strict requirements for the content of carbon elements in steel, which is a special material.

What is Carbon Steel? What are the commonly used ones? I think you should still learn about the manufacturers of carbon steel, and they will tell you the synthetic materials of carbon steel in detail.

Carbon steel, also known as carbon steel and carbon steel, is a carbon-containing iron-carbon alloy, whose hardness, strength and plasticity are related to carbon content, generally the higher the carbon content, the greater the hardness, the greater the strength, and the lower the plasticity. If you want to know more about "what is the nature of carbon steel", you can continue to read.

1. Carbon steel leakage cover Wang refers to an iron-carbon alloy with a mass fraction less than that, which generally contains a small amount of silicon, manganese, sulfur, phosphorus and other elements.

2. According to the use, carbon steel can be divided into carbon structural steel, carbon tool steel and free-cutting structural steel, according to the carbon content, carbon steel can be divided into low carbon steel, medium carbon steel and high carbon steel.

3. According to the smelting method, carbon steel can be divided into open-hearth steel, converter steel, and according to the quality of steel, carbon steel can be divided into ordinary carbon steel, high-quality carbon steel, high-grade high-quality steel and super-high-quality steel.

4. Different carbon steels have different uses, such as carbon structural steel is generally used for engineering structures and ordinary mechanical parts, and carbon tool steel is generally used to make sledgehammers, chisels, taps, razors, etc.

The above is "what is the nature of carbon steel", through we know that carbon steel refers to the carbon content of iron-carbon alloy, which generally contains a small amount of silicon, manganese, sulfur, phosphorus and other elements.

According to the carbon content, carbon steel can be divided into low carbon steel (WC, medium carbon steel) and high carbon steel (WC>. 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 greater the hardness and the higher the strength, but the lower the plasticity.

The martensitic structure obtained by quenching steel is hard and brittle, and there is a large internal stress inside the workpiece. The purpose of tempering is to eliminate internal stress, appropriately reduce hardness, and improve processing performance. According to different process requirements, tempering is divided into three process methods: high-temperature tempering, medium-temperature tempering and low-temperature tempering.

The alloy of iron and carbon, commonly known as carbon steel, is divided into three categories according to the different carbon content:

Mild steel (c Medium carbon steel (C: High carbon steel (C.

According to the different uses of carbon steel, only Chanchang can be divided into (). Finger chopping.

a.Carbon structural steel.

b.Carbon workers are buried in steel.

c.Mild steel.

d.High-carbon steel.

Correct answer: ab

10 steel is classified according to its use, and what kind of steel does it belong to.

Grades and uses of carbon steel Ordinary carbon structural steel. Commonly used grades are Q235, Q235A, Q255, etc., which are mainly used to manufacture unimportant mechanical parts, such as cotter pins, nuts, bolts, bridge structural parts, etc. High-quality carbon structural steel).

Commonly used grades are 20 steel, 35 steel, 40 steel, 45 steel, etc. It is used in the manufacture of shafts, gears, connecting rods and other important parts. carbon tool steel;

Commonly used grades are T8, T10, T12, etc., which are mainly used to manufacture low-speed cutting tools, molds, measuring tools and other tools.

Answer]: Classification of a steel, classified by chemical composition: steel can be divided into carbon steel, low alloy steel and alloy steel.

1. Steel is classified according to quality

1) Ordinary steel (p,s.)

2) Excellent steel material steel (P, S are even

3) High-grade high-quality steel (p,s.)

2., classified by chemical composition.

1) Carbon steel: steel aMild steel (c; b.Medium carbon steel (c; c.High-carbon steel (c.

2) Alloy steel: alow-alloy steels (5% total alloying elements); b.medium alloy steel (total content of alloying elements: 5 10%); c.High-alloy steel (total alloying element content: 10%).

3. Steel is classified according to the forming method: (1) forged steel; (2) Cast steel; (3) hot-rolled steel; (4) Cold drawing.

Carbon structural steel used for ordinary concrete structural steel is Q235 steel. Carbon structural steel refers to general structural steel and hot-rolled plates, pipes, strips, profiles and bars used in engineering. Carbon structural steel is divided into only five grades according to the magnitude of the yield point Q value

They are Q195, Q215, Q235, Q255, Q275, according to the grade ascending order, the carbon content and tensile strength increase, but the cold bending and elongation decrease, the main application of carbon structural steel in civil engineering and construction engineering is Q235 steel, which can roll various sections of steel, steel plates, steel pipes and steel bars. Q235 Weipei steel has high strength, good plasticity and toughness, weldability and machinability and other comprehensive properties, and easy smelting, low cost, widely used in general steel structure.