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ASTM A387 Grade 9 Steel vs. SAE-AISI F1 Steel

Both ASTM A387 grade 9 steel and SAE-AISI F1 steel are iron alloys. They have 90% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ASTM A387 grade 9 steel and the bottom bar is SAE-AISI F1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
72
Tensile Strength: Ultimate (UTS), MPa 500 to 600
620 to 2320

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1460
1480
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 26
45
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 10
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
5.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.1
1.7
Embodied Energy, MJ/kg 28
24
Embodied Water, L/kg 87
46

Common Calculations

PREN (Pitting Resistance) 12
2.3
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18 to 21
22 to 82
Strength to Weight: Bending, points 18 to 20
20 to 49
Thermal Diffusivity, mm2/s 6.9
12
Thermal Shock Resistance, points 14 to 17
19 to 70

Alloy Composition

Carbon (C), % 0 to 0.15
1.0 to 1.3
Chromium (Cr), % 8.0 to 10
0
Iron (Fe), % 87.1 to 90.8
95.9 to 98
Manganese (Mn), % 0.3 to 0.6
0 to 0.5
Molybdenum (Mo), % 0.9 to 1.1
0
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 1.0
0.1 to 0.5
Sulfur (S), % 0 to 0.025
0 to 0.030
Tungsten (W), % 0
1.0 to 1.8
Vanadium (V), % 0 to 0.040
0

Comparable Variants