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SAE-AISI T2 Steel vs. Grey Cast Iron

Both SAE-AISI T2 steel and grey cast iron are iron alloys. They have 75% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI T2 steel and the bottom bar is grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
180
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 79
69
Tensile Strength: Ultimate (UTS), MPa 780 to 2150
160 to 450

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Melting Completion (Liquidus), °C 1820
1380
Melting Onset (Solidus), °C 1760
1180
Specific Heat Capacity, J/kg-K 410
490
Thermal Conductivity, W/m-K 19
46
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 46
1.9
Density, g/cm3 9.3
7.5
Embodied Carbon, kg CO2/kg material 11
1.5
Embodied Energy, MJ/kg 170
21
Embodied Water, L/kg 98
44

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 23 to 64
5.8 to 17
Strength to Weight: Bending, points 20 to 40
8.7 to 17
Thermal Diffusivity, mm2/s 4.9
13
Thermal Shock Resistance, points 23 to 65
6.0 to 17

Alloy Composition

Carbon (C), % 0.8 to 0.9
3.1 to 3.4
Chromium (Cr), % 3.8 to 4.5
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 70.8 to 75.8
92.1 to 93.9
Manganese (Mn), % 0.2 to 0.4
0.5 to 0.7
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.9
Silicon (Si), % 0.2 to 0.4
2.5 to 2.8
Sulfur (S), % 0 to 0.030
0 to 0.15
Tungsten (W), % 17.5 to 19
0
Vanadium (V), % 1.8 to 2.4
0