S420N
Normalized fine-grain steel: 420 MPa yield up to 16 mm, 520–680 MPa tensile up to 100 mm.
- Yield strength ReH
- ≥ 400MPaSingle source16–40 mm
- Tensile strength Rm
- 520–680MPaSingle source≤ 100 mm
- Elongation after fracture A
- ≥ 18%Single source
- Design yield strength fy
- 420MPaSingle source≤ 40 mm
- Design ultimate strength fu
- 520MPaSingle source≤ 40 mm
All values
Strength
Yield strength ReH
Upper yield strength guaranteed by the product standard (minimum).
| Condition | Value | Evidence |
|---|---|---|
| ≥ 420MPa | Single source | |
| ≥ 400MPa | Single source | |
| ≥ 390MPa | Single source | |
| ≥ 370MPa | Single source | |
| ≥ 360MPa | Single source | |
| ≥ 340MPa | Single source | |
| ≥ 330MPa | Single source | |
| ≥ 320MPa | Single source |
Tensile strength Rm
Ultimate tensile strength. Product standards give a range or a minimum.
| Condition | Value | Evidence |
|---|---|---|
| 520–680MPa | Single source | |
| 500–650MPa | Single source | |
| 500–650MPa | Single source |
Ductility
Elongation after fracture A
Minimum elongation; depends on gauge length and test direction.
| Condition | Value | Evidence |
|---|---|---|
| ≥ 18% | Single source |
Design values (Eurocode)
Design yield strength fy
Nominal value used in design calculations (before partial factors).
| Condition | Value | Evidence |
|---|---|---|
| 420MPa | Single source | |
| 390MPa | Single source |
Design ultimate strength fu
Nominal ultimate strength used in design calculations.
| Condition | Value | Evidence |
|---|---|---|
| 520MPa | Single source | |
| 520MPa | Single source |
Not yet verified for this grade
- A producer's datasheet for the product values
Missing on purpose: a value appears here only once a public source states it.
Sources here are public pages that reproduce EN 10025-3:2019. For design and acceptance, the standard edition named in your specification and the inspection certificate (EN 10204 3.1) of the delivered product take precedence.