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Grade F1852 Type 1 Carbon Boron Steel
Corresponding Standard ASTM F1852-2014
“Twist Off” Type Tension Control Structural Bolt/Nut/Washer Assemblies, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength
Classification Carbon Steel
F1852 Type 1 Carbon Boron Steel Chemical Element Composition Content (%)
  Component C Si Mn P S B
Heat Analysis Minimum Value 0.3 0.1 0.6 - - 0.0005
Maximum Value 0.52 0.3 - 0.04 0.05 0.003
  Component C Si Mn P S B
Product Analysis Minimum Value 0.28 0.08 0.57 - - 0.0005
Maximum Value 0.55 0.32 - 0.048 0.058 0.003
F1852 Type 1 Carbon Boron Steel Mechanical Properties
Tensile Strength
σb
Mpa 		Hardness
HBW
1/2 ~ 1 / L＜3D 827 253~319
1/2 ~ 1 / L≥3D 827 ≤319
1-1/8 / L＜3D 724 223~286
1-1/8 / L≥3D 724 ≤286

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