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SAE-AISI T15 Steel vs. Grey Cast Iron

Both SAE-AISI T15 steel and grey cast iron are iron alloys. They have 73% 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 T15 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 76
69
Tensile Strength: Ultimate (UTS), MPa 830 to 2240
160 to 450

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Melting Completion (Liquidus), °C 1690
1380
Melting Onset (Solidus), °C 1640
1180
Specific Heat Capacity, J/kg-K 430
490
Thermal Conductivity, W/m-K 21
46
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 43
1.9
Density, g/cm3 8.7
7.5
Embodied Carbon, kg CO2/kg material 16
1.5
Embodied Energy, MJ/kg 250
21
Embodied Water, L/kg 140
44

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 26 to 71
5.8 to 17
Strength to Weight: Bending, points 22 to 43
8.7 to 17
Thermal Diffusivity, mm2/s 5.6
13
Thermal Shock Resistance, points 26 to 70
6.0 to 17

Alloy Composition

Carbon (C), % 1.5 to 1.6
3.1 to 3.4
Chromium (Cr), % 3.8 to 5.0
0
Cobalt (Co), % 4.8 to 5.3
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 67.5 to 73.5
92.1 to 93.9
Manganese (Mn), % 0.15 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), % 0.15 to 0.4
2.5 to 2.8
Sulfur (S), % 0 to 0.030
0 to 0.15
Tungsten (W), % 11.8 to 13
0
Vanadium (V), % 4.5 to 5.3
0