Property class 10.9
High-strength structural bolt for preloaded joints: 1000 MPa tensile, 900 MPa yield (nominal).
All values
Strength
Yield strength ReH
Upper yield strength guaranteed by the product standard (minimum).
| Condition | Value | Evidence |
|---|---|---|
| ≥ 940MPa | Single source |
Tensile strength Rm
Ultimate tensile strength. Product standards give a range or a minimum.
| Condition | Value | Evidence |
|---|---|---|
| ≥ 1 040MPa | Single source |
Ductility
Elongation after fracture A
Minimum elongation; depends on gauge length and test direction.
| Condition | Value | Evidence |
|---|---|---|
| ≥ 9% | Corroborated |
Design values (Eurocode)
Design yield strength fy
Nominal value used in design calculations (before partial factors).
| Condition | Value | Evidence |
|---|---|---|
| 900MPa | Single source |
Design ultimate strength fu
Nominal ultimate strength used in design calculations.
| Condition | Value | Evidence |
|---|---|---|
| 1 000MPa | Single source |
Property class 10.9 in other standards
Full comparison“Equivalent” tables online usually match grades by name. This one compares the values each standard actually guarantees, so a 30 MPa gap in yield is visible before it is in your calculation.
| Grade | Standard | Min. yield at 10 mm | Tensile at 10 mm | Match | What differs |
|---|---|---|---|---|---|
| Property class 10.9 |  ISO 898-1 | ≥ 940MPa1 | ≥ 1 040MPa1 | — | Reference grade. |
| F3125 Grade A490 |  ASTM F3125/F3125M | ≥ 896MPa2 | 1 034–1 193MPa2 | Close match | 150–173 ksi (1034–1193 MPa) tensile, 130 ksi (896 MPa) yield; inch threads. |
Sources here are public pages that reproduce ISO 898-1. 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.