Q500(D, E) and Q550(D, E) steel plates are high-strength low-alloy structural steels with high yield strength and good comprehensive mechanical properties. Q500D and E grade steel plates have good ductility and toughness, and are suitable for the manufacture of structural parts requiring moderate loads, such as building structures, Bridges, vehicles, ships and mechanical equipment. Grade Q550D and E steel plates have higher strength and wear resistance and are suitable for the manufacture of structural parts requiring high loads, such as heavy machinery, petrochemical, power and mining equipment.

These steel plates are manufactured by adding appropriate alloying elements, such as Mn, Si, Cr, Ni, etc., to enhance their mechanical properties and corrosion resistance. At the same time, the appropriate heat treatment process can further optimize its mechanical properties and processing properties.

In short, Q500(D, E) and Q550(D, E) steel plates are widely used in various engineering fields, such as construction, Bridges, vehicles, ships, machinery and petrochemical industries, etc., providing important support for ensuring structural safety.

Q460 is a low-alloy high-strength steel with a yield strength of 460MPa.

Q460C, D, E steel plates have high strength and better comprehensive mechanical properties, such as toughness, wear resistance and corrosion resistance. This steel plate is mainly used in the manufacture of structural parts requiring high loads, such as building structures, Bridges, heavy vehicles, ships and petrochemical industries. At the same time, Q460 steel plate also has good weldability and processing properties, easy to cut, bend and welding and other processing.

In the manufacturing process of Q460C, D and E steel plates, the content of microalloying elements can be appropriately increased on the basis of ensuring low carbon equivalent to improve the strength and weldability of steel. At the same time, the quality grade of this steel plate is divided into C, D, E three levels, different levels of steel plate quality grade and impact test requirements are different.

Q420 is a low-alloy high-strength structural steel with a yield strength of 420MPa. This steel has high strength and good corrosion resistance, and can meet the needs of high loads for a long time. Q420 steel plate is divided into A, B, C, D, E five grades, different levels of steel plate quality grade and impact test requirements are different. Q420 is mainly used in ships, Bridges, building structures, petrochemical, electric power and other fields, especially in the need to withstand high loads and impact of structural parts manufacturing is widely used.

Q390 is a low-alloy high-strength structural steel with a yield strength of 390MPa and good comprehensive mechanical properties, such as strength, toughness, wear resistance and corrosion resistance. Q390 steel plate is divided into A, B, C, D, E five grades, different levels of steel plate quality grade and impact test requirements are different. This kind of steel plate is mainly used in the manufacture of structural parts requiring large loads and impacts, such as Bridges, building structures, heavy vehicles and so on.

Q295 (A, B) steel plates and Q345 (A, B, C, D, E) steel plates are low-alloy high-strength structural steels, often used in the manufacture of Bridges, building structures, ships, vehicles, heavy machinery, etc.

Among them, Q295 is A kind of steel with a yield strength of 295MPa, which is divided into two grades A and B, the main difference is that the quality grade and impact test requirements are different. Q295A does not require a shock test, while Q295B requires a normal temperature shock test. The steel plate has good plasticity, toughness, weldability and processing properties, and is mainly used for manufacturing mechanical parts and welding components with low strength requirements.

Q345 is A steel grade with a yield strength of 345MPa, which is divided into five grades: A, B, C, D and E. Different grades of steel plate quality grade and impact test requirements are different. Q345A does not require an impact test, while Q345E requires a -40℃ low temperature impact test. This steel plate has good comprehensive mechanical properties, such as strength, toughness, wear resistance and corrosion resistance, and is widely used in ships, Bridges, building structures, petrochemical, electric power and other fields.

14MnNbq is a low alloy high strength steel plate for Bridges.

The "14" in the grade of 14MnNbq steel plate indicates the carbon content of steel plate; "Mn" indicates the manganese content of the steel plate; "Nb" indicates the niobium content of the steel plate; "q" represents the initial letter of the "bridge" character of the bridge board.

14MnNbq steel plate has been successfully applied in major domestic bridge projects such as Wuhu Yangtze River Bridge and Nanjing Yangtze River Bridge, and has achieved good economic and social benefits.

These plates are low-alloy high-strength structural steel, specifically:

12Mn steel plate: is a common carbon structural steel, with moderate strength, good plasticity and toughness, easy to weld and process. It is mainly used in the manufacture of Bridges, vehicles, ships and building structures.
15MnVN steel plate: is a low carbon low alloy high strength structural steel, with good tensile strength, yield strength and ductility. It is mainly used in the manufacture of ships, Bridges, building structures and heavy vehicles.
16Mn steel plate: also known as Q345 steel plate, is a low-alloy high-strength structural steel, with good comprehensive mechanical properties, such as strength, toughness, wear resistance and corrosion resistance. It is widely used in ships, Bridges, building structures, petrochemical, electric power and other fields.
15MnV steel plate: It is a low-alloy high-strength structural steel with high tensile strength, yield strength and wear resistance. It is mainly used in the manufacture of mechanical parts and structural parts with high wear resistance requirements, such as mining machinery, heavy vehicles and so on.

These steel plates usually require heat treatment during the manufacturing process to obtain the required mechanical properties and processing properties. At the same time, they also have good weldability and processing performance, easy to cut, bend, drilling and other processing operations.

WQ590 (D, E) steel plate is a kind of tempered high strength steel plate, the brand expression method: W-Wugang "dance" Chinese phonetic alphabet first letter; Q-steel yield strength of the word "qu" first letter of Chinese pinyin; Q is the yield strength, 590 is the yield strength value, the unit is MPa; D indicates the grade of steel plate; D indicates that the quality grade is D, and the impact of D steel plate is -20; The common steel plate quality grades are D and E. Namely WQ590D, WQ590E.

WQ590 (D, E) steel plate is mainly used in the manufacture of coal mine hydraulic support, heavy vehicles, construction machinery and other steel structural parts requiring good weldability.

S460 (Q, QL, QL1) steel plate is a high-strength steel, often used in the manufacture of machinery, construction, mining and other fields that need to withstand heavy loads and strong shocks.

S460 (Q, QL, QL1) steel plate added a small amount of alloying elements, such as Cu, P, Cr, etc., to improve its strength and corrosion resistance. At the same time, through the appropriate heat treatment process, its comprehensive performance can be further enhanced to meet the needs of different use environments.

S460 (Q, QL, QL1) steel plates have high strength values, high tensile strength and yield strength, and can effectively resist various deformation and fracture. In addition, the S460 (Q, QL, QL1) steel plate also has good corrosion resistance and fatigue resistance, and can maintain stable performance in complex environments.

Q1030(D, E) steel plate is a tempered high strength steel plate, mainly used in the manufacture of mechanical equipment and structural parts that need to withstand heavy loads and strong shocks.

A small amount of alloying elements, such as Cu, P, Cr, etc. are added to the Q1030(D, E) steel plate to improve its strength and corrosion resistance. At the same time, through the appropriate heat treatment process, its comprehensive performance can be further enhanced to meet the needs of different use environments.

Q1030(D, E) steel plate has a very high strength value, its tensile strength and yield strength are high, and can effectively resist various deformation and fracture. In addition, Q1030(D, E) steel also has good corrosion resistance and fatigue resistance, and can maintain stable performance in complex environments.

Q1030(D, E) steel plate is widely used in mining, construction machinery, vehicles, iron track, electric power, communication, mechanical equipment, high strength standard parts and other fields.

30CrNi3MoV (675) armor steel is a kind of high strength, high toughness, homogeneous armor bulletproof steel, the main characteristics of its material are uniform strength, high plasticity, high toughness, fatigue strength, and low cold and brittle transition temperature and notch sensitivity.

In addition, 30CrNi3MoV (675) armor steel also has obvious temper brittleness, medium cutting performance, cold deformation plasticity and poor weldability.

This kind of armor steel is developed on the basis of the original Cr-Ni-Mo low alloy ultra-high strength steel by V microalloying, and appropriately adjusting the content of other alloying elements. For giving full play to the strengthening advantages of V microalloying, reasonable and advanced controlled rolling and cooling or heat treatment processes must be used in production in order to maximize the performance of steel.

30CrMnMoRE (603) steel plate is a kind of high-strength, high-toughness, armored bulletproof steel, mainly used in the manufacture of armored vehicles, bulletproof vehicles, tanks and other heavy equipment protective armor plate.

30CrMnMoRE (603) steel plate code 603, the implementation of the People's Republic of China national military standards.

This steel plate has a high elastic resistance, can effectively resist the impact and penetration of bullets, shells and other ammunition, to provide protection for equipment.

In addition, the 30CrMnMoRE (603) steel plate also has good machining and welding properties, which can be easily machined and connected to adapt to different manufacturing needs.