s275nl mechanical properties

S275NL Mechanical Properties

As a premier exporter and manufacturer of high-quality structural steel plates, Gangsteel specializes in producing EN 10025-3 compliant materials, including the versatile S275NL steel grade. S275NL is a normalized fine-grain structural steel designed for welded constructions requiring enhanced toughness at low temperatures, down to -50°C. Ideal for heavy-duty applications in bridges, cranes, and offshore structures, our S275NL plates are delivered in normalized or normalized rolled conditions to ensure superior weldability and impact resistance. For a comprehensive overview of our en 10025 3 normalized steel plate offerings, explore our full range.

Mechanical Properties of S275NL Steel

S275NL exhibits robust mechanical characteristics under EN 10025-3, with properties varying by thickness to accommodate diverse fabrication needs. All values are for normalized (+N) condition. The consolidated table below covers yield strength, tensile strength, elongation, and Charpy V-Notch impact energy (minimum longitudinal at -50°C; transverse is 16 J).

*Notes: Elongation based on Lo = 5.65 √So. Impact values are higher at warmer temperatures (e.g., 63 J at +20°C longitudinal). These properties position S275NL as a cost-effective choice for structures needing high toughness, outperforming standard S275JR in sub-zero conditions.

Why Choose Gangsteel for S275NL Steel?

With state-of-the-art mills and a commitment to ISO-certified quality, Gangsteel delivers S275NL plates tailored to your specifications. Stocked in various sizes and ready for immediate export worldwide. For detailed pricing and availability, visit our en 10025 3 s275nl normalized structural steel plate product page or contact our sales team today.

Summary

S275NL mechanical properties under EN 10025-3 include a yield strength of 205–275 MPa (depending on thickness), tensile strength of 350–510 MPa, minimum elongation of 23–24%, and 27 J impact energy at -50°C. These ensure excellent performance in low-temperature welded structures like bridges and offshore platforms.

FAQ

What is the yield strength of S275NL for thicknesses up to 16 mm?

The minimum yield strength (ReH) is 275 MPa for thicknesses ≤ 16 mm.

How does the tensile strength vary with thickness in S275NL?

Tensile strength (Rm) is 370–510 MPa for ≤ 100 mm and 350–480 MPa for 100–250 mm.

What is the minimum Charpy impact energy for S275NL at -50°C?

27 Joules in the longitudinal direction; 16 J transverse.

Does S275NL elongation change with thickness?

Yes, 24% minimum for ≤ 63 mm, reducing to 23% for > 63 mm.

What is the maximum thickness for S275NL with full properties?

Up to 250 mm, with adjusted minimum yields for thicker sections.