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SAE-AISI A7 Steel vs. SAE-AISI F2 Steel

Both SAE-AISI A7 steel and SAE-AISI F2 steel are iron alloys. They have 88% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI A7 steel and the bottom bar is SAE-AISI F2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Tensile Strength: Ultimate (UTS), MPa 800 to 2150
710 to 2360

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Melting Completion (Liquidus), °C 1470
1520
Melting Onset (Solidus), °C 1430
1470
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 37
42
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 10
10
Density, g/cm3 7.7
8.1
Embodied Carbon, kg CO2/kg material 13
2.3
Embodied Energy, MJ/kg 200
32
Embodied Water, L/kg 100
50

Common Calculations

PREN (Pitting Resistance) 11
6.5
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 29 to 77
24 to 81
Strength to Weight: Bending, points 25 to 48
22 to 49
Thermal Diffusivity, mm2/s 10
11
Thermal Shock Resistance, points 27 to 72
21 to 71

Alloy Composition

Carbon (C), % 2.0 to 2.9
1.2 to 1.4
Chromium (Cr), % 5.0 to 5.8
0.2 to 0.4
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 81.4 to 87.7
92.6 to 95.4
Manganese (Mn), % 0 to 0.8
0.1 to 0.5
Molybdenum (Mo), % 0.9 to 1.4
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.5
0.1 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0.5 to 1.5
3.0 to 4.5
Vanadium (V), % 3.9 to 5.2
0

Comparable Variants