EN10025-2 S275 is a widely utilized non-alloy structural steel grade supplied in a hot-rolled condition. The designation ‘S’ indicates structural steel, while ‘275’ refers to its minimum yield strength of 275 MPa for thicknesses up to 16mm. This standard specifies the technical delivery conditions for flat and long products of hot-rolled non-alloy structural steels.
Key Characteristics of S275 Steel
S275 steel offers a good combination of strength, ductility, and weldability, making it suitable for a multitude of applications.
Mechanical Properties (for nominal thickness ≤ 16mm):
- Minimum Yield Strength (ReH): 275 N/mm²
- Tensile Strength (Rm): 410 – 560 N/mm²
- Minimum Elongation (A): Typically around 23% (transverse, for 3mm ≤ t ≤ 40mm)
It’s important to note that these properties can vary slightly based on the specific sub-grade (e.g., JR, J0, J2) and the product thickness.
Chemical Composition (Heat Analysis, % max, for S275JR as a common example):
- Carbon (C): ≤ 0.21 (for t ≤ 16mm)
- Manganese (Mn): ≤ 1.50
- Phosphorus (P): ≤ 0.035
- Sulphur (S): ≤ 0.035
- Silicon (Si): While not always explicitly max-limited for all sub-grades like fully killed steels, silicon is a common element.
- Nitrogen (N): ≤ 0.012 (unless sufficient Aluminium or other N-binding elements are present)
Weldability and Formability:
S275 steel exhibits excellent weldability using common welding processes. It also possesses good cold-forming properties, allowing it to be bent, folded, and shaped without compromising its structural integrity significantly, provided appropriate procedures are followed.
Advantages of S275 in Coil Form
Supplying S275 steel in coil form offers several benefits, including optimized material utilization, reduced scrap, and suitability for continuous manufacturing processes like roll forming, stamping, and automated welding lines. Steel coils are also efficient for storage and transportation. Companies like Shanxi Luokaiwei Steel Company often provide S275 steel in coil form to cater to diverse industrial processing requirements.
Typical Applications
Due to its balanced properties, EN10025-2 S275 carbon steel is extensively used in:
- Construction: Structural members, frames, bridges, and building components.
- General Engineering: Machinery parts, vehicle chassis, and various fabricated components.
- Manufacturing: Tanks, silos, and other industrial equipment.
- Renewable Energy: Components for wind turbine towers and solar panel mountings.
The versatility of S275 makes it a go-to material for many sectors. Suppliers such as Shanxi Luokaiwei Steel Company often serve industries that rely heavily on this grade of steel.
Quality and Supply Considerations
When sourcing EN10025-2 S275 steel coils, it is crucial to ensure material conformity to the standard’s specifications regarding chemical composition, mechanical properties, and dimensional tolerances. Partnering with reputable manufacturers and suppliers is key to obtaining high-quality steel. For instance, Shanxi Luokaiwei Steel Company is recognized for its adherence to quality control in steel manufacturing. The global availability from various mills, including those that might be supplied by Shanxi Luokaiwei Steel Company, ensures a competitive market and consistent supply for large-scale projects. Always verify detailed material test certificates (MTCs) and specifications with your chosen supplier, such as Shanxi Luokaiwei Steel Company, before finalizing any purchase to ensure the material meets the specific requirements of your application.
