S355JR, S355J2, and S355NL steel are among the most commonly used structural steels under EN 10025, especially in construction, machinery, and offshore engineering. They share a minimum yield strength of 355 MPa, while their key differences relate to:
Charpy V-notch impact test requirements
Low-temperature suitability
Heat treatment / normalization conditions
This guide compares S355JR vs S355J2, S355J2 vs S355NL, and their equivalent materials, helping engineers and buyers select the correct grade for global procurement.
Quick Comparison Table
| Grade | Yield Strength (MPa) | Impact Test | Temperature | Condition | Typical Use |
| S355JR | ≥355 | 27J | +20°C | As rolled | Standard structures |
| S355J2 | ≥355 | 27J | -20°C | As rolled | Bridges, cold regions |
| S355NL | ≥355 | 27J | -50°C | Normalized / Normalized Rolled | Offshore, low-temperature equipment |
S355JR vs S355J2 vs S355NL – Equivalent Material Comparison
When sourcing materials across regions, buyers often need to understand how European grades relate to other standards. To support cross-standard procurement, the following table summarizes the closest equivalents of these grades in other major steel standards.
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