S235J0 - 1.0114

S235J0 is classified as a non-alloy structural steel under the European standard EN 10025-2.

The “S” indicates it is a structural steel, suitable for use in buildings, infrastructure, and other load-bearing applications.

The numbers "235" refer to the minimum yield strength of 235 megapascals, which designates the level of stress the steel can withstand before it begins to deform permanently.

The "J" in S235J0 indicates that the steel has been tested for impact sensitivity at 0°C, with a minimum impact energy absorption of 27 joules. This provides advantages in environments that are subject to cold weather and ensures toughness at lower temperatures.

S235J0 steel features good weldability due to its low carbon content, which allows it to be efficiently welded without the risk of cracking. This makes it particularly suitable for construction and mechanical engineering projects where reliable welding performance is essential.

In terms of its chemical makeup, the steel comprises mainly of iron with small amounts of carbon, manganese, phosphorus, sulfur, nitrogen, and copper. These elements contribute to the steel’s mechanical stability, tensile strength, and overall robustness, although its resistance to corrosion and rust is limited. Therefore, additional protective coatings are recommended when S235J0 is used in outdoor or humid settings.

Mechanical Properties

Chemical Properties

Applications

S235J0 steel is versatile and finds its applications primarily in various types of structural and infrastructure projects.

In the construction industry, S235J0 steel is widely used in the fabrication of beams, columns, and trusses for both buildings and bridges. Its combination of toughness and weldability makes it ideal for these applications, as it ensures both durability and ease of assembly at construction sites. The steel's mechanical properties make it a reliable choice for use in bridge girders and other crucial support structures.

Moreover, this grade of steel is employed in highway construction for guardrails, signage supports, and other infrastructure elements. These projects benefit from S235J0's balance of strength and cost-effectiveness, making it a preferred choice where economic and structural needs intersect.

Additionally, in the field of metal engineering, S235J0 is suitable for creating low-stressed components that require increased toughness and weldability, further extending its utility to applications such as creating containers able to withstand low-temperature seawater, thus proving advantageous in certain marine conditions.

However, S235J0 is not typically recommended for applications involving high corrosion risk unless appropriate protective coatings are applied. Its suitability for moderate stress structures makes it particularly useful, provided that the environmental conditions do not exceed its tolerance for moisture and saltwater.