EN 10025-2:2019 is the European standard for hot rolled non-alloy structural steel, defining grades S235, S275, S355, and S450. It is the European counterpart of IS 2062 and is the primary structural steel specification for European-origin projects. Indian fabricators supplying to Europe, the Middle East, or international EPC contracts frequently require material certified to EN 10025-2 — either imported or from Indian mills with CE mark capability.
Technical Overview
EN 10025-2 is Part 2 of the broader EN 10025 series covering structural steel products. It specifies non-alloy (plain carbon) structural grades where 'S' denotes structural and the number denotes minimum yield strength in MPa (measured at 16mm thickness). Each grade offers sub-qualities J0, J2, K2 that define Charpy impact test temperatures: J0 = 0°C, J2 = −20°C, K2 = −20°C with higher absorbed energy. The standard also specifies chemical composition limits, delivery conditions (as-rolled, normalised, or thermomechanically rolled), and testing requirements. EN 10025-2 material must carry a CE Declaration of Performance when used in European construction under EN 1090.
Grades & Mechanical Properties
| Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Notes |
|---|---|---|---|
| S235 | ≥ 235 MPa (≤16mm) | 360–510 MPa | Mild steel — equivalent to IS 2062 E250 in strength |
| S275 | ≥ 275 MPa (≤16mm) | 430–580 MPa | Medium strength — between IS 2062 E250 and E300 |
| S355 | ≥ 355 MPa (≤16mm) | 490–630 MPa | High strength — equivalent to IS 2062 E350; most globally traded grade |
| S450 | ≥ 450 MPa (≤16mm) | 550–720 MPa | Very high strength — specialised structural applications |
Values are minimum requirements unless otherwise stated. Always verify with the current edition of the standard and the mill test certificate.
Common Applications
- Structural steel frames for European-designed buildings
- Offshore platforms and marine structures
- Bridge fabrication for international projects
- Industrial equipment for European OEMs
- Export fabrication to Middle East and Africa
- Wind turbine towers and renewable energy structures
International Equivalents
IS 2062 E250
Indian equivalent for S235/S275 structural grades
IS 2062 E350
Indian equivalent for S355 grade
ASTM A36
US equivalent for S235 — yield and tensile strength comparable
ASTM A572 Grade 50
US equivalent for S355 — high-strength low-alloy structural
Frequently Asked Questions
What is EN 10025-2 steel?
Is S355 the same as IS 2062 E350?
Can Indian mills supply EN 10025-2 certified steel?
What does J2 mean in EN 10025-2 S355J2?
Related Standards
IS 2062:2011 — Hot Rolled Medium and High Tensile Structural Steel
IS 2062 is India's primary structural steel standard, specifying hot rolled medium and high tensile steel used in bridges, buildings, industrial structures, and fabricated assemblies. It defines six grades from E250 to E550, covering mild to high tensile performance. Published by the Bureau of Indian Standards (BIS), it is the most referenced steel specification in Indian construction and engineering.
View standard
ASTM A516 / A516M — Standard Specification for Pressure Vessel Plates, Carbon Steel, for Moderate- and Lower-Temperature Service
ASTM A516 is the American Society for Testing and Materials specification for carbon steel plates used in pressure vessels and storage tanks operating at moderate to low temperatures. Grade 70 is the most widely used worldwide, offering a balance of strength, toughness, and weldability. It is specified extensively in Oil & Gas, chemical, and petrochemical plant construction globally and is commonly required for export-oriented fabrication projects in India.
View standard
IS 808:2021 — Dimensions for Hot Rolled Steel Beam, Column, Channel and Angle Sections
IS 808:2021 is the BIS dimensional standard for hot rolled steel sections — I-beams (ISMB), columns (ISSC), channels (ISMC), T-sections (ISST), and angles (ISA/ISEA). It specifies the exact dimensions, mass per metre, and section properties (area, moment of inertia, section modulus) for each standard size. IS 808 is the reference document used by structural engineers across India to select sections and by procurement teams to specify and verify supply.
View standard
IS 2041:2009 — Steel Plates for Pressure Vessels Used at Moderate and Low Temperatures
IS 2041:2009 specifies steel plates for fabricating pressure vessels, storage tanks, heat exchangers, and process equipment operating at moderate to sub-zero temperatures. It defines four grades — R220, R260, R310, and R350 — that balance strength, ductility, and notch toughness to ensure safe containment of pressurised fluids and gases in chemical, petrochemical, and industrial plant applications.
View standard