EN 10025 S235JR: European Standard Mild Carbon Steel
EN 10025-2 · Published: 2026-06-03 · Updated: 2026-06-03
EN S235JR is the baseline structural steel in European construction, equivalent to the former BS 4360 Grade 43A. It is the most economical structural grade and is specified for general construction, welded structures, and non-critical mechanical...
EN S235JR is the baseline structural steel in European construction, equivalent to the former BS 4360 Grade 43A. It is the most economical structural grade and is specified for general construction, welded structures, and non-critical mechanical components.
Quick Facts
| Category | Carbon Steel |
| Standard | EN 10025-2 |
| Density | 7.85 g/cm³ |
| Yield Strength | 235 MPa |
| Tensile Strength | 360-510 MPa |
Global Equivalents & Cross-Reference
Related Materials
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Frequently Asked Questions
Is S235JR suitable for welding?
Yes, S235JR has excellent weldability with a CEV typically below 0.35. No preheating is required for sections under 30mm thickness. It is the most commonly welded structural steel in Europe.
References & International Standards
- ASTM International. Standard Specifications for Steel & Metal Alloys. astm.org
- International Organization for Standardization (ISO). Metallic Materials — Cross-Reference Database. iso.org
- American Iron and Steel Institute (AISI). Steel Grade Designations & Equivalents. steel.org
- European Committee for Standardization (CEN). EN Steel Standards & Numbering System. cencenelec.eu