How much is the difference between Q235 and Q345 angle steel of the same specification per ton?

Type: Anglo-American Standard Channel Angle Steel Equilateral Angle Steel Specifications Complete Specifications (mm) Length (m) Place of Origin Manufacturer: Masteel Tangsteel Senda Material Q235 Q345 Wide Side 14-200 (mm) Narrow Edge 4-200 (mm) 3870 tons.

Type: Unequal angle steel Specification: 50*5*6m, q235(mm), length: 6(m), place of origin: manufacturer: Tianjin.

Material Q235 thickness 50 (mm).

Wide side 50*5*6m(mm) Narrow side 50*5*6m(mm) 3500 tons.

Type: Equilateral angle steel Specifications Complete (mm).

Length: 6-12(m) Origin: Manufacturer: Jiangsu, Wuxi, Material: Q235, Wide Side, Complete Specifications (mm).

Narrow edge Complete specifications (mm) 4200 tons.

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After all, I don't really know what the specific model means.

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Generally, there is 200 yuan, and the difference between low-end Q235B and high-end Q345B ** will even be about 1500 yuan.

Steel is a material of a certain shape, size, and properties that ingots, billets, or steel are made by pressure processing. Most steel processing is carried out by pressure processing, which causes plastic deformation of the processed steel (billets, ingots, etc.). According to the different processing temperatures of steel, it can be divided into two types: cold working and hot working.

Carbon steelCarbon steel, also known as carbon steel, is an iron-carbon alloy with a carbon content (WC) of less than 2%. In addition to carbon, carbon steel generally contains a small amount of silicon, manganese, sulfur and phosphorus.

According to the use, carbon steel can be divided into three categories: carbon structural steel, carbon tool steel and free-cutting structural steel. Carbon structural steel can be divided into two types: building structural steel and machine-made structural steel.

According to the carbon content, carbon steel can be divided into low carbon steel (WC), medium carbon steel (WC) and high carbon steel (WC>. According to the phosphorus and sulfur content, carbon steel can be divided into ordinary carbon steel (higher phosphorus and sulfur), high-quality carbon steel (lower phosphorus and sulfur) and high-grade high-quality steel (lower phosphorus and sulfur).

Generally, the higher the carbon content in carbon steel, the higher the hardness and higher the strength, but the plasticity is reduced.

The price difference of each steel mill is different, which has to ask your supplier, basically between 150 and 300, 345 is more expensive than 235.

The price difference is about 200-300 a ton, and Q235 is cheaper.

Hello, I'm glad to answer for you: The difference between Q355 angle steel and Q235 angle steel: Q235 belongs to the low-carbon structural steel grade, Q355 belongs to the low-alloy structural steel grade, and the strength is higher than that of Q235.

Q355 can replace Q235, Q235 can not replace the angle steel is also called manganese angle, Q235 angle steel is called general angle. The manganese content of Q355 angle steel is higher than that of Q235, and the yield strength and tensile strength and elongation of Q355 angle steel are higher than that of Q235 angle steel.

Q345 is equivalent to 16MN steel.

Q345 is a kind of low-alloy steel, which is widely used in bridges, vehicles, ships, buildings, pressure vessels, and special equipment.

etc., where "q" means yield strength.

345 indicates that the yield strength of this steel is 345MPa, and its emphasis is basically the same as that of 16Mn steel.

Q345 steel, with good comprehensive mechanical properties, low temperature performance, good plasticity and weldability, is used as medium and low pressure containers, oil tanks, vehicles, cranes, mining machinery, power stations, bridges and other dynamic load structures, mechanical parts, building structures.

General metal structural parts, used in hot rolled or normalized state, can be used for various structures in cold areas above -40.

1. The definitions are different.

Q235: Q235 ordinary carbon structural steel is also known as A3 steel. Ordinary carbon structural steel plate is a kind of steel material.

Q represents the yield limit of this material, and the subsequent 235 refers to the yield value of this material, which is about 235MPa. And with the increase of the thickness of the material and its yield value decreases, due to the moderate carbon content, good comprehensive performance, strength, plasticity and welding and other properties are better matched, the most widely used.

Q345: Q345 is a type of steel. It is a kind of low-alloy steel.

2. The application is different.

Q235: Widely used in architectural and engineering structures. It is used to make steel bars or build factory frames, high-voltage transmission towers, bridges, vehicles, boilers, containers, ships, etc., and is also widely used as mechanical parts that do not require high performance.

C and D grade steel can also be used as some professional steel.

It can be used for all kinds of mold handles as well as other unimportant mold parts. Q235 steel is used as the punch material, which is used directly without tempering after quenching, and the hardness is 36 40HRC, which solves the phenomenon of punch fragmentation in use.

Q345: Widely used in bridges, vehicles, ships, buildings, pressure vessels, special equipment, etc.

3. The performance is different.

Q235: Due to the moderate carbon content, the comprehensive performance is better, and the strength, plasticity and welding properties are well matched, and the most widely used.

Q345: Q345 decreases the yield value of a material as its thickness increases. And the domestic one may be less than 345, so the strength must be less than 345 when the mechanical design is made, otherwise there will be problems.

Dear, I am glad to answer for you: Q345 and Q355 steel are the same?

1. Different properties 1, Q345: belongs to a kind of low-alloy steel. 2、q355：

It is a kind of low-alloy high-strength structural steel. 2. Different uses 1, Q345: widely used in bridges, vehicles, ships, buildings, pressure vessels, special equipment, etc.

2. Q355: widely used in bridges, vehicles, ships, buildings, pressure vessels, special equipment, etc., where "Q" means yield strength. 3. The yield strength of steel is different 1, Q345:

345 indicates that the yield strength of this steel is: 355 means that the yield strength of this steel is 355MPa, and its yield value decreases as the thickness of the material increases. Q345 is alloy steel, Q355 is medium carbon steel.

Q345 carbon content Q355, Q345 contains manganese, manganese content is, Q355 does not contain manganese, Q345 also contains titanium alloy, vanadium alloy, niobium alloy, good comprehensive mechanical properties, better than Q355, yield strength is lower than Q355, is a higher quality low alloy high-strength steel. Q355 is a carbon structural steel with medium carbon content, ferritic structure, easy to rust.

Q235 steel is an ordinary carbon structural steel, that is, the old model A3 steel has a yield point of 235MPa and a tensile strength of 375-500MPa, which has many general uses.

Q345 steel is a low-alloy high-strength structural steel, which is a general term for a class of steel including 16MnN, 12MnV, 14mnB, 18Nb, 16MnRe, with a yield point of 345MPa and a tensile strength of 470-630MPa, which belongs to ordinary quality low-alloy steel.

q is the yield strength.

Yield strength: When the stress of the material exceeds the elastic limit, the deformation increases rapidly, and in addition to the elastic deformation, some plastic deformation is also produced. When the stress reaches a certain value, the plastic strain increases dramatically, and a small plateau of fluctuations appears in the curve, a phenomenon called yield.

The maximum and minimum stresses at this stage are called the upper and lower yield points, respectively. Since the value of the lower yield point is relatively stable, it is used as an indicator of the resistance of the material, which is called the yield point or yield strength.