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Compare / Property class 10.9 vs F3125 Grade A490

Property class 10.9 vs F3125 Grade A490

International ISO 898-1 · Steel

Property class 10.9

High-strength structural bolt for preloaded joints: 1000 MPa tensile, 900 MPa yield (nominal).

United States ASTM F3125/F3125M · Steel

F3125 Grade A490

US high-strength structural bolt: 150–173 ksi (1034–1193 MPa) tensile, 130 ksi (896 MPa) yield.

Close match150–173 ksi (1034–1193 MPa) tensile, 130 ksi (896 MPa) yield; inch threads.

Mechanical

PropertyConditionProperty class 10.9F3125 Grade A490Difference
Yield strength ReH—≥ 940MPa1≥ 896MPa2−4.7 %
Tensile strength Rm—≥ 1 040MPa11 034–1 193MPa2−0.6 %

Rows are matched by condition (thickness band, temperature, product form). A dash means the grade has no sourced value for that condition. Differences are F3125 Grade A490 relative to Property class 10.9; for ranges the lower bound is compared.