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SAE-AISI H22 Steel vs. Grey Cast Iron

Both SAE-AISI H22 steel and grey cast iron are iron alloys. They have 86% 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 H22 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 77
69
Tensile Strength: Ultimate (UTS), MPa 700 to 1920
160 to 450

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Melting Completion (Liquidus), °C 1670
1380
Melting Onset (Solidus), °C 1620
1180
Specific Heat Capacity, J/kg-K 440
490
Thermal Conductivity, W/m-K 31
46
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 28
1.9
Density, g/cm3 8.7
7.5
Embodied Carbon, kg CO2/kg material 4.9
1.5
Embodied Energy, MJ/kg 73
21
Embodied Water, L/kg 72
44

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 22 to 61
5.8 to 17
Strength to Weight: Bending, points 20 to 39
8.7 to 17
Thermal Diffusivity, mm2/s 8.2
13
Thermal Shock Resistance, points 22 to 60
6.0 to 17

Alloy Composition

Carbon (C), % 0.3 to 0.4
3.1 to 3.4
Chromium (Cr), % 1.8 to 3.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 82.2 to 87.4
92.1 to 93.9
Manganese (Mn), % 0.15 to 0.4
0.5 to 0.7
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), % 10 to 11.8
0
Vanadium (V), % 0.25 to 0.5
0