Comparison with Other Grades2

Compared with Q345B steel, S355J2 steel has a higher yield strength. Under the same load - bearing conditions, S355J2 steel requires a smaller cross - sectional size, which can reduce the structural weight. In addition, the welding performance of S355J2 steel is better than that of Q345B steel, which is more convenient for structural connection. However, the price of S355J2 steel is relatively high, which may increase the project cost.

Precautions

Welding: Before welding, the surface oil stains and rust should be cleaned. Appropriate welding materials and pre - heating temperatures should be selected according to the plate thickness. Although S355J2 steel has good welding performance, pre - heating may be required for thick plates to improve the welding quality and the strength and toughness of the welded joint.

Inspection: When purchasing, the quality assurance document should be checked, and the chemical composition, mechanical properties, and impact test report should be focused on to ensure that the purchased steel meets the required standards.

 

 

 

 

 

Grade	Mechanical Property
	Tensile Strength(MPa)	Yield Strength(MPa)	% Elongation in 2 in.(50mm) min	Impacting Test Temperature(°C)
CCS A	400-520	235	22	20

 

 

Application Areas5

Construction Structure: It is used for structural components such as beams, columns, and frames of buildings, which can bear heavy loads and dynamic loads. It is widely used in the construction of high - rise buildings, large - scale commercial complexes, sports stadiums, large - scale public facilities, and industrial plants.

Bridge Engineering: It is suitable for the manufacture of large - span bridges, such as highway bridges and railway bridges, ensuring the stability and safety of the bridge structure.

 

Shipbuilding and Offshore Engineering: Due to its good corrosion resistance and low - temperature toughness, it is suitable for the manufacture of ship hulls, bridges, and offshore platforms in offshore engineering.

 

 

 

Why Choose Us?
We take pride in our ability to provide custom solutions for our customers' unique needs.
We analyze and compare the previous products and the current technical situation of our S355J2 High Tensile Steel, and develop new technical specifications and processes.
Our customers trust us to deliver high-quality Cold-rolled Steel products on time and on budget.
We strictly implement the warm and thoughtful after-sales service, adhere to the development of good professional ethics.
We offer a wide range of Cold-rolled Steel products to meet diverse customer needs.
We adhere to the customer-centric and brand-oriented business philosophy, and continue to provide customers with reliable and excellent products and services.
Our factory is committed to upholding the highest standards of safety and quality.
All staff of our company and all departments work together to combine business management, professional technology, quantitative statistical methods and ideological education.
Our Cold-rolled Steel products are known for their durability and reliability.
Relying on the superior conditions and strong advantages of mass production, we are able to meet the different needs of our customers.

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