S355K2 hot-rolled structural steel EN 10025

S355K2 steel plate is a European standard hot-rolled structural steel product with a yield strength of 355MPa, containing elements such as C, Si, Mn, and excellent mechanical properties. In accordance with the EN10025 standard, delivery can be made in hot-rolled or other conditions. S355K2 steel plate plays an important role in the engineering field due to its high strength, high toughness, good corrosion resistance and weldability.
Chemical Composition

The chemical composition of S355K2 carbon structural steel plate mainly includes carbon (C), silicon (Si), manganese (Mn), phosphorus (P), sulfur (S) and a small amount of alloying elements such as chromium (Cr) and copper (Cu). The specific content is as follows:

Carbon (C): ≤0.24%

Silicon (Si): ≤0.60% (some data also indicate that it should not exceed 0.55%)

Manganese (Mn): ≤1.70% (some data also indicate that it should not exceed 1.6%)

Phosphorus (P): ≤0.035%

Sulfur (S): ≤0.035%

Chromium (Cr): not more than 0.30%

Copper (Cu): not more than 0.60% (some data also indicate not more than 0.55%)

In addition, it may also contain trace amounts of elements such as aluminum (Al), titanium (Ti), niobium (Nb), and nitrogen (N). The precise ratio of these elements gives S355K2 steel plate excellent performance.

Dimensional Tolerance

The EN 10025 standard strictly controls the dimensional tolerances of steel. This includes the tolerance range of the length, width, thickness, and cross-sectional dimensions (such as height, width, web thickness, flange thickness, etc.) of the steel. These tolerance regulations ensure the interchangeability and performance of products, allowing steel to meet the dimensional requirements of various application scenarios.

Shrinkage rate: far greater than 12%.

Processing types of S355K2 steel plate

Customized processing:
According to customer requirements, the steel plate is cut to the specified length and width dimensions.
Surface treatment: including sandblasting, painting, galvanizing and other treatment methods to improve the corrosion resistance, aesthetics and service life of steel plates.
Bending process: using a bending machine to bend steel plates into a specified shape and angle.
Stamping: Stamping a hole or protrusion of a specified shape and size on a steel plate using a stamping die.
Welding: Two or more steel plates are connected by welding to form a more complex structural component.
Surface treatment: including sandblasting, painting, galvanizing and other treatment methods to improve the corrosion resistance, aesthetics and service life of steel plates.

Various performance characteristics

S355K2 hot-rolled structural steel plate has the characteristics of high strength, high toughness, good corrosion resistance and weldability:

High strength: The yield strength and tensile strength of S355K2 are both high, which can meet the requirements of large-scale load-bearing structures, making the structure stable and able to withstand the pressure of loads.
High toughness: This steel has good toughness, can withstand large impact loads, and is less prone to brittle fracture.
Good corrosion resistance: S355K2 can maintain stability and safety even in corrosive environments such as acid rain and salt spray.
Excellent weldability and processing performance: S355K2 steel plate can meet various welding processes and processing requirements, providing great convenience for manufacturing and application.

Application

S355K2 steel plate is widely used in many fields due to its excellent performance: construction, bridge construction, shipbuilding, machinery manufacturing, petrochemical industry, and marine engineering.