Characteristics:

Significantly higher strength than ordinary carbon steel (e.g., Q235), reducing structural weight.

The JR grade indicates an impact energy ≥27 J at 20℃ for longitudinal samples, suitable for structures under dynamic loads at room temperature.

Process Properties

Weldability:

Low carbon equivalent (CEV ≤0.42% typically), excellent weldability; preheating or post-weld heat treatment is generally unnecessary.

Low-hydrogen welding processes (e.g., shielded metal arc welding, gas metal arc welding) are recommended, with control of heat input to avoid grain coarsening.

Formability:

Can be hot-rolled, cold-rolled, or forged. For cold forming, pay attention to thickness and bending radius to avoid cracking.

Heat Treatment:

Usually delivered in hot-rolled or normalized conditions. Quenching and tempering (quenching + tempering) can be applied for higher strength requirements.

Application Fields

Construction Engineering: Bridges, factory buildings, steel structures for high-rise buildings (e.g., frame beams, columns).

Mechanical Manufacturing: Crane booms, mining machinery components, agricultural machinery frames.

Transportation: Vehicle chassis, railway vehicle structures, ship decks, and hull structures.

Pressure Vessels: Tanks and pipeline supports in non-high-pressure scenarios (higher grades like S355J2G3 are required for high-pressure applications).

 

 

 

 

Specification we supply：

Thickness	3-200mm
Width	1500-4000mm
Length	5000-15000mm

 

 

 

 

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 S235JR Mild 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.
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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