F3125 Grade A325
US heavy-hex structural bolt: 120 ksi (827 MPa) tensile, 92 ksi (634 MPa) yield. A325 now lives inside F3125.
Compared with Property class 8.8 on its equivalents table.
All values
Strength
Yield strength ReH
Upper yield strength guaranteed by the product standard (minimum).
| Condition | Value | Evidence |
|---|---|---|
| ≥ 634MPa | Corroborated |
Tensile strength Rm
Ultimate tensile strength. Product standards give a range or a minimum.
| Condition | Value | Evidence |
|---|---|---|
| ≥ 827MPa | Corroborated1 |
Ductility
Elongation after fracture A
Minimum elongation; depends on gauge length and test direction.
| Condition | Value | Evidence |
|---|---|---|
| ≥ 14% | Single source |
Listed as equivalent to
- Property class 8.8 (ISO 898-1) — 120 ksi (827 MPa) tensile and 92 ksi (634 MPa) yield, close to 8.8 above 16 mm; inch threads.
Sources here are public pages that reproduce ASTM F3125/F3125M. 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.