Grade F3125 Grade A325 Type 1
Corresponding Standard ASTM F3125/F3125M-2019
High Strength Structural Bolts and Assemblies, Steel and Alloy Steel, Heat Treated, 120Ksi (830MPa) ~ 150Ksi (1040MPa) Minimum Tensile Strength
Classification Carbon Steel
F3125 Grade A325 Type 1 Chemical Element Composition Content (%)
  Component C Si Mn P S B
含硼或不含硼的碳钢或合金钢 Minimum Value 0.3 0.15 0.6 - - -
Maximum Value 0.52 0.3 - 0.035 0.04 0.003
F3125 Grade A325 Type 1 Mechanical Properties
Tensile Strength
σb
ksi
Yield Point
σs
ksi
Elongation or Extension Rate
δ
%
Reduction of Area
ψ
%
Hardness
HBW
≥120 ≥92 ≥14 ≥35 253~319

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