The specific quality and performance requirements for high-strength carbon steel plates are as follows:

 

Chemical composition:

Carbon content: The carbon content is an important factor determining the strength of the steel. Generally, high-strength carbon steel has a relatively high carbon content, but it needs to be controlled within a certain range to ensure the balance between strength and other properties. For example, carbon content is usually above a certain threshold (such as higher than 0.6% in some cases) to provide high strength, but excessive carbon content may lead to reduced ductility and weldability.

Alloying elements: Elements such as manganese (Mn), silicon (Si), chromium (Cr), nickel (Ni), and molybdenum (Mo) may be added in appropriate amounts. Manganese can improve the strength and hardenability of the steel; silicon can enhance the elastic limit and strength; chromium and molybdenum can improve the corrosion resistance and high-temperature performance. The contents of these alloying elements need to be controlled precisely to achieve the desired performance.

Impurity control: The contents of impurity elements such as sulfur (S) and phosphorus (P) must be strictly limited. High levels of sulfur can cause hot brittleness, while high phosphorus can lead to cold brittleness, both of which will seriously affect the quality and performance of the steel. Generally, the sulfur content is required to be less than 0.03% - 0.05%, and the phosphorus content is less than 0.03% - 0.045%1.

 

 

 

 

All grade of steel plate

steel category	steel grade	Size (mm)			Standard
Carbon steel	Q235A-D	6-200	1050-4500	5000-25000	GB
Low alloy steel	Q345A-E,Q390A-E, Q420A-E,Q460C-E,	6-200	1050-4500	5000-25000	GB
Bridge building steel	Q345qC-E,Q370qC-E, Q420qC-E,Q460qC-E, Q500qC-E,Q550qC-E, Q690qC-E	6-150	1050-4500	5000-25000	GB
High-rise steel	Q345GJC-E,Q390GJC-E, Q420GJC-E,Q460GJC-E	6-150	1050-4500	5000-25000	GB
Offshore wind power steel	S355G7/G8+M,S355G7/G8+N, S460G1/2+QT/M	6-100	1050-4500	5000-25000	EN

 

The specific quality and performance requirements for high-strength carbon steel plates are as follows:

 

Chemical composition:

Carbon content: The carbon content is an important factor determining the strength of the steel. Generally, high-strength carbon steel has a relatively high carbon content, but it needs to be controlled within a certain range to ensure the balance between strength and other properties. For example, carbon content is usually above a certain threshold (such as higher than 0.6% in some cases) to provide high strength, but excessive carbon content may lead to reduced ductility and weldability.

Alloying elements: Elements such as manganese (Mn), silicon (Si), chromium (Cr), nickel (Ni), and molybdenum (Mo) may be added in appropriate amounts. Manganese can improve the strength and hardenability of the steel; silicon can enhance the elastic limit and strength; chromium and molybdenum can improve the corrosion resistance and high-temperature performance. The contents of these alloying elements need to be controlled precisely to achieve the desired performance.

Impurity control: The contents of impurity elements such as sulfur (S) and phosphorus (P) must be strictly limited. High levels of sulfur can cause hot brittleness, while high phosphorus can lead to cold brittleness, both of which will seriously affect the quality and performance of the steel. Generally, the sulfur content is required to be less than 0.03% - 0.05%, and the phosphorus content is less than 0.03% - 0.045%1.

 

 

 

 

 

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We analyze and compare the previous products and the current technical situation of our Building Materical CCS/ABS/BV High-Strength Carbon Ship/Bridge Hot Rolled Steel Plate, and develop new technical specifications and processes.
Our customers trust us to deliver high-quality Cold-rolled Steel products on time and on budget.
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We offer a wide range of Cold-rolled Steel products to meet diverse customer needs.
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Our Cold-rolled Steel products are known for their durability and reliability.
 

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