S420NL
1.8912High-strength normalized fine-grain structural steel. 420 MPa yield with -50°C impact toughness. Between S355NL and S460NL in the strength ladder. Used for bridges, crane structures, pressure vessels, and structural components in cold environments.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇨🇳 | GB | China | Q420E | — | REF |
| 🇪🇺 | EN | Europe | S420NL | 1.8912 | 100% |
Sources: GB/T 1591, EN 10025-3:2019
Chemical composition comparison (wt%)
Side-by-side: S420NL (EN) (EN 10025-3:2019) vs S420NL (EN) (EN 10025-3:2019)
| Element | S420NL (EN) | S420NL (EN) | Overlap |
|---|---|---|---|
| C | 0–0.2% | 0–0.2% | OK |
| Si | 0–0.6% | 0–0.6% | OK |
| Mn | 1–1.7% | 1–1.7% | OK |
| P | 0–0.025% | 0–0.025% | OK |
| S | 0–0.02% | 0–0.02% | OK |
| Cr | 0–0.3% | 0–0.3% | OK |
| Ni | 0–0.8% | 0–0.8% | OK |
| V | 0–0.2% | 0–0.2% | OK |
| Ti | 0–0.05% | 0–0.05% | OK |
| Nb | 0–0.05% | 0–0.05% | OK |
Mechanical properties
Normalized
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | 520–680 | MPa |
| Yield Strength | ≥ 420 | MPa |
| Elongation | ≥ 19 | % |
| Elastic Modulus | ≥ 210 | GPa |
| Density | ≥ 7.85 | g/cm3 |
Related materials
S355JR
1.0045High-strength low-alloy structural steel with minimum yield strength of 355 MPa. Standard grade for bridges, buildings, cranes, and general structural applications. Impact tested at +20°C (JR).
S690QL
1.8928High-strength quenched and tempered fine-grain structural steel with minimum yield strength of 690 MPa. Used for heavily loaded structures like mobile cranes, mining equipment, bridges, and pressure vessels.
S275JR
1.0044Medium-strength structural steel with minimum yield strength of 275 MPa. Bridges the gap between S235JR and S355JR. Used for general structural applications, lattice towers, masts, and light crane components. Impact tested at +20°C (JR).
Not sure which material fits?
🤖 Ask AI Advisor →All data is for reference only. Equivalents indicate similarity, not identity. Always verify against the applicable specification for safety-critical applications. materialref.com accepts no liability for decisions based on this data.